Two industrial battery connectors can share the same main-contact envelope and still behave differently in a control circuit. One may provide simple auxiliary continuity after the power contacts engage. Another may offer several contact lengths for staged signals. A third may reserve a pilot pair for a charger-enable or interlock loop. The label auxiliary contact included does not say which event happens first, what the contact is allowed to carry, or whether a controller will remove power before the main contacts separate.
Direct answer: procure the auxiliary or pilot function as a complete event chain, not as an accessory count. Freeze the exact connector series, mating halves, auxiliary housing, pin and socket part numbers, contact lengths, wire range and retention parts. Define the required make and break order relative to the main power contacts in both mating directions. Then connect each physical transition to a documented controller action, timeout, safe response and measured verification. A last-mate/first-break contact can provide early notice of withdrawal, but it does not by itself interrupt main current, prove de-energization, or make an otherwise unsuitable connector safe to disconnect under load.
This guide focuses on auxiliary and pilot contacts integrated into industrial battery connector systems. It does not repeat the housing, main-contact, color-keying and cable-selection work covered by the genderless DC power connector RFQ guide. It also does not establish hot-plug permission; use the DC connector hot-plug and pre-charge guide when energized mating, capacitive inrush or arc duty is involved.
Nothing here confirms a SINAWATTS connector series, circuit rating, contact sequence, interlock architecture, certification, test capability, production method, stock, price, MOQ, lead time or customer result. Those claims require written evidence for the exact offered assembly. Manufacturer examples below are bounded to their named product families and documents.
Separate the five things buyers often call an auxiliary contact
Use precise functional names in the RFQ. The same small contact cavity can support very different circuits, and different architectures can use the same word for different events.
On small screens, swipe or scroll sideways to read every column. Keyboard users can focus the table and use the arrow keys.
| Term in this guide | Question it answers | Evidence needed | What it does not prove |
|---|---|---|---|
| Auxiliary power contact | Can a lower-power branch be carried through the connector? | Exact contact and housing, conductor range, DC load rating, temperature basis, termination and protection | That the contact changes before or after the main poles |
| Signal contact | Can a sensor, communication or logic circuit cross the interface? | Minimum and maximum electrical load, interface circuit, shielding or return, contact material and signal validation | Safety integrity, galvanic isolation or a specific sequence |
| Pilot contact | What physical mating state is represented by a dedicated pilot circuit? | Pin length, location, counterpart, make/break order and tolerance | That the power circuit is already safe or isolated |
| Interlock-loop contact | Can the controller detect opening and command a response? | Closed-loop schematic, diagnostics, thresholds, debounce, timeout, safe response and fault handling | That the commanded response actually completed |
| Sequenced auxiliary | Which auxiliary circuit makes earlier or later than another auxiliary or the main contacts? | Model-specific dimensional drawing, contact-length BOM and measured event order | A universal time interval or suitability for switching the controlled load directly |
A buyer should also separate a contact state from a system state. Closed pilot contacts may mean only that the pilot pins are touching. A controller may interpret that state as permission to start pre-charge, enable a charger or close a contactor, but the controller command and the high-current device response are additional states. Likewise, an open pilot contact may tell the controller that separation has begun; it cannot prove that all main poles are open or that stored energy has fallen below a safe threshold.
Start with a connector-specific sequence, not a generic slogan
The current Anderson Power Products SBE/SBO/SBX product-family page, checked on 2026-10-08, states that the SBE and SBX families accommodate up to eight auxiliary power or signal contacts. It describes four pin lengths for the named 1x4 auxiliary accessory, says sequencing within auxiliary positions is possible, and says the auxiliary contacts mate last and unmate first relative to the power contacts. The same page identifies intelligent power switching, CAN and interlock loops as possible uses.
That is useful product-family evidence, but its boundary matters. It does not prove the installed pin length, wiring or controller logic in an offered connector. It does not say that every auxiliary option in every related housing has identical sequencing. It does not authorize an auxiliary contact to interrupt the main load. It also does not turn a possible CAN use into proof of signal-integrity performance for an unnamed cable assembly.
The current REMA connector-family page, checked on 2026-10-08, states that accessories including auxiliary and pilot contacts from the REMA DIN 80, 160 and 320 ranges can be used with the corresponding MRC design, and that IRC connectors can be extended with available coding pins plus auxiliary and pilot contacts from the MRC series. This confirms an accessory relationship within the named REMA families. The public page does not state a universal contact sequence, circuit rating, interlock timing or compatibility with an unrelated connector. A quotation using a REMA configuration therefore still needs the exact accessory drawing, part numbers and sequence evidence.
The procurement rule is simple: copy neither the Anderson sequence nor a REMA accessory relationship into another series. Ask the bidder to return the source document for the exact main housing, auxiliary carrier, pins, sockets and retaining hardware it proposes.
Describe the event ladder in both mating directions
“Last mate, first break” describes order, not the complete system behavior. Build an event ladder with distinct physical and electrical events. A typical project may need rows like these, but the supplier must replace every assumed relation with model-specific evidence:
On small screens, swipe or scroll sideways to read every column. Keyboard users can focus the table and use the arrow keys.
| Event ID | During mating | During unmating | Evidence owner |
|---|---|---|---|
| E0 | Housings align and keying prevents the prohibited pair | Withdrawal force first moves the housings | Connector drawing and mechanical validation |
| E1 | Main contacts first touch but are not yet at full wipe | Pilot or selected auxiliary circuit opens | Contact-position drawing and event measurement |
| E2 | Main contacts reach the manufacturer-defined engaged region | Controller detects pilot opening after debounce | Connector evidence plus controller trace |
| E3 | Standard-length auxiliary closes | Controller removes charger enable or opens a contactor | Contact-length BOM, input circuit and software record |
| E4 | Post-mate or shortest auxiliary closes, if used | Main current falls below the approved threshold | Sequence drawing, current trace and acceptance rule |
| E5 | Latch or fully mated feature reaches its final position | Main contacts begin to separate | Housing/latch drawing and synchronized measurement |
| E6 | Controller declares connection valid | Main contacts fully separate and stored energy is managed | Complete system test and fault analysis |
This is an example structure, not a claimed sequence for any product. The terms “pre-mate,” “standard” and “post-mate” must follow the exact manufacturer document. If a drawing gives contact lengths but not engagement tolerances under housing play, wear and cable side-load, require the missing tolerance or measured sequence window.
Record both position order and time behavior. Contact geometry establishes which interface changes first during a controlled movement. The time available to a controller depends on withdrawal speed, mechanical travel, contact bounce, input filtering, network delay, actuator response and current decay. A ten-millimeter mechanical interval is not a fixed number of milliseconds. The RFQ should therefore specify a range of realistic mating and withdrawal speeds and require synchronized position, pilot state, command state, main current and bus-voltage traces.
Translate each auxiliary circuit into a truth table
Before requesting quotations, assign one purpose to each auxiliary position. Do not let the same contact mean “mated,” “charger enabled” and “safe to touch” in different documents.
On small screens, swipe or scroll sideways to read every column. Keyboard users can focus the table and use the arrow keys.
| Condition | Pilot input | Controller command | Main switching device | Main connector | Permitted system interpretation |
|---|---|---|---|---|---|
| Fully separated | Open | Disabled | Open or otherwise safe by design | Open | Connector is not mated; stored-energy state still needs its own evidence |
| Mating in progress | Transitioning or open | Disabled | Open | Main contacts may already touch | Do not enable normal power yet |
| Fully mated and validated | Closed and stable | Enable permitted | Closed only after approved checks | Fully engaged | Normal operation may be permitted within the system design |
| Withdrawal begins | Opens first under the documented sequence | Disable/open command issued | Transitioning | Main contacts still engaged for a bounded interval | Early withdrawal detected; not yet isolated |
| Abnormal pilot open while latched | Open | Safe response commanded | Defined by failure analysis | May remain engaged | Fault or broken pilot path, not automatic proof of separation |
| Pilot shorted | Closed falsely | Diagnostic must prevent unsafe permission where required | Defined by architecture | Any position | Diagnostic fault; a simple loop cannot always detect a bypass |
If the circuit carries CAN, another differential bus or a sensor reference, add the relevant topology. Record which conductors form a pair, shield and return strategy, termination location, common-mode range, cable construction, stub length and behavior during partial mating. The connector vendor’s statement that auxiliary positions can support CAN is not a complete network design or a validation report for the finished harness.
Freeze the exact auxiliary BOM
A main housing part number is not enough. The RFQ return should identify:
- both main connector housings and their revisions;
- every auxiliary carrier or sub-housing;
- each pin and socket part number, including its physical length designation;
- each contact cavity and circuit name;
- conductor material, cross-section or AWG, strand construction, insulation diameter and color;
- crimp or other termination method, tooling, locator, die, settings and inspection rule;
- retention clip, roll pin, tubular pin, latch or other hardware;
- extraction and insertion tools plus permitted service method;
- cable tie, clamp, sleeve, strain relief and slack requirement;
- mating counterpart and any prohibited combination; and
- drawing and instruction revision for every item.
The Anderson SBE/SBX assembly instruction 1S6556, checked on 2026-10-08, is an original-manufacturer example of why this detail matters. For the listed SBE/SBX/SBO catalog configurations, it identifies an auxiliary-wire range, tells the assembler to use the recommended crimp tool, requires contacts to snap over the spring and be tug-checked, describes stacking and retaining the auxiliary housings, and tells the assembler to leave slack in auxiliary leads when securing them to a main cable. It also warns that connectors should never be assembled or disassembled while energized.
Those instructions apply only to the catalog numbers and construction covered by that document. They do not verify a third-party contact, an unlisted conductor, a substitute crimp tool or a different auxiliary carrier. The instruction also should not be misread as a complete controller-interlock validation. It closes mechanical assembly questions; the buyer still needs the circuit and system evidence.
Design the interlock as a monitored control function
Draw the complete loop from the auxiliary contact through the controller input and back to the commanded power device. Include input supply, return, pull-up or pull-down, thresholds, wetting current, filtering, debounce, diagnostics, protection, connectors, wire joins and software state. If the loop opens on withdrawal, show which device is commanded and how completion is verified.
Ask these questions:
- Is the input fail-high, fail-low or a diagnosed current window?
- Can an open wire be distinguished from legitimate connector withdrawal?
- Can a short across the two pilot wires be detected?
- What happens if the pilot opens while charging, while driving, while idle or during a controller reset?
- Does the controller command a contactor, charger, inverter, pre-charge relay or only an indicator?
- What proves the commanded device reached the required state?
- How are contact bounce and intermittent withdrawal handled without delaying the protective action too long?
- What is the maximum detection-to-action time over voltage, temperature and component tolerance?
- What current or voltage may remain when the main power contacts begin to separate?
- How does the system respond if the time limit is exceeded?
A single normally closed loop can be valuable, but it is not automatically a safety-rated function. If the project assigns a safety-related risk reduction to the interlock, the responsible safety process must define the required architecture, diagnostic coverage, independence, common-cause controls, development process and validation. An ordinary auxiliary accessory does not acquire a safety integrity level merely because it is wired to a controller.
Keep early-break detection separate from load interruption
An early-opening pilot contact gives a controller an opportunity to reduce current. Whether that opportunity is sufficient depends on the complete timing chain:
available interval = connector travel from pilot opening to critical main-contact separation / actual withdrawal speed
Compare that interval with:
required interval = input detection + debounce + software scheduling + output actuation + switching-device opening + current decay + margin
This relationship is a planning model, not a universal formula for approval. Travel can vary with tolerance and wear. Human withdrawal speed is not constant. A contactor can open more slowly at one coil voltage or temperature. Inductive or capacitive energy can keep current flowing after a command. Require worst-case inputs, measured distributions where appropriate and a documented margin approved by the system designer.
If the connector itself is expected to make or break load, obtain explicit model-specific evidence for voltage, current waveform, load type, polarity, cycle count and post-test condition. A continuous current rating and a sequenced pilot are insufficient. If a pre-charge branch is used, define its resistor, relay or contactor, timing, voltage-completion criterion, failure detection and discharge behavior separately.
Build a verification matrix before ordering samples
The test plan should distinguish component checks, harness checks and system checks.
On small screens, swipe or scroll sideways to read every column. Keyboard users can focus the table and use the arrow keys.
| Level | Test objective | Suggested evidence | Important boundary |
|---|---|---|---|
| Incoming component | Correct auxiliary carrier, contacts and lengths arrived | Part labels, dimensional sample, certificate or supplier record | Visual similarity cannot identify a pin length reliably |
| Terminated contact | Conductor and termination match the approved process | Crimp-height or process data, pull/section evidence where specified, tool record | Main-contact tooling does not automatically cover auxiliary contacts |
| Housing assembly | Contacts are fully seated and retained | Insertion/tug check, retention hardware and cavity map | A retained contact can still be wired to the wrong cavity |
| Static continuity | Every circuit maps to the correct counterpart | Point-to-point record with isolation from adjacent circuits | Continuity alone does not prove sequence |
| Slow controlled mate/unmate | Physical order and bounce are visible | Synchronized position and circuit-state trace | One hand-operated demonstration is not a tolerance study |
| Speed range | Sequence remains adequate across use conditions | Multiple controlled movement rates with current and command traces | Fast withdrawal can shrink controller response time |
| Loaded system | Interlock reduces current before the approved boundary | Pilot, command, switching-device, current and voltage traces | Perform only under an approved safe procedure |
| Fault insertion | Open, short, stuck input and failed actuator produce defined responses | Fault matrix and controller logs | Do not create hazardous faults without engineered controls |
| Environmental/endurance | Wear, contamination, vibration or temperature does not invalidate sequence | Defined conditioning followed by sequence and electrical checks | Passing initial geometry is not lifetime evidence |
Use calibrated or otherwise controlled instruments appropriate to the values being measured. Record sampling rate, channel synchronization, probes, trigger point, fixture and uncertainty. A video can support event interpretation, but it is not a substitute for synchronized electrical traces when millisecond behavior matters.
The qualification plan should identify the exact mating pairs, cable exits, harness mass and mounting arrangement. A loose bench pair may move differently from a vehicle-mounted receptacle with stiff cables. Include the latch, handle, strain relief and any mechanical assist used in production.
Control contact bounce, intermittent states and diagnostics
Small contacts can bounce while crossing their engagement region. A simple controller may respond to every transition; another may filter the input. Too little filtering can chatter a relay or create repeated network events. Too much filtering can consume the time intended to unload the main circuit.
Specify the raw contact behavior the connector must meet, then specify the controller interpretation separately. Ask for maximum permitted bounce or unstable interval under the test method, input filter characteristics, debounce strategy and response to repeated opens. Record whether an intermittent contact during vibration is treated as a warning, immediate shutdown or logged maintenance event.
For a resistance-coded pilot, define every valid resistance window, wire tolerance, contact resistance allowance, diagnostic threshold and behavior for open or short faults. For a simple loop, state its diagnostic limits honestly. For a communication pair, define the network’s error handling during partial separation. Do not describe any of these as welded-main-contact detection unless the architecture actually observes the main path.
Compare offers by evidence, not by cavity count
Consider three hypothetical offers; the examples are reasoning aids, not product claims.
Offer A has eight auxiliary cavities and the lowest price, but supplies one pin length, no cavity map and no sequence drawing. It may support signal wiring, yet it does not prove the required early-break interlock.
Offer B supplies four auxiliary circuits with documented pre-mate, standard and post-mate options, a complete BOM and a sequence drawing. Its controller evidence remains missing. The connector evidence is stronger, but the system interlock is still conditional.
Offer C supplies fewer positions but returns a tested circuit: named contact lengths, harness drawing, input thresholds, synchronized withdrawal traces, contactor-current decay and fault responses. If those boundaries match the project, its evidence can be more valuable than a higher cavity count.
Normalize commercial comparison around the same deliverable: both mating halves, contacts, auxiliary carriers, retention parts, tooling or validated process, cable assembly, qualification evidence, production records, packaging and spares. Price one complete mated system, not a housing on one side.
Require a supplier evidence matrix
On small screens, swipe or scroll sideways to read every column. Keyboard users can focus the table and use the arrow keys.
| Gate | Supplier return | Buyer decision |
|---|---|---|
| A. Product identity | Exact main housings, auxiliary options, contacts and revisions | Does every claim map to an orderable part? |
| B. Functional allocation | Cavity-to-circuit map and purpose of each contact | Is each circuit’s meaning unambiguous? |
| C. Physical sequence | Dimensioned make/break order for both directions | Is the required order demonstrated for the offered configuration? |
| D. Electrical interface | Ratings, minimum load, conductor and controller-input details | Is the contact suitable for the actual signal or load? |
| E. Assembly | Termination, insertion, retention, slack and inspection instructions | Can production reproduce the approved build? |
| F. System logic | Truth table, debounce, timeout, commands and fault response | Does software use the physical sequence correctly? |
| G. Dynamic validation | Synchronized pilot, command, main current and voltage traces | Does current reach the approved condition before separation? |
| H. Fault handling | Open, short, bounce, stuck device and reset behavior | Are detectable and undetectable failures stated honestly? |
| I. Endurance/environment | Conditioning sequence and post-test results | Does sequence remain valid after relevant stress? |
| J. Production/change | Routine tests, traceability and notification triggers | Will later units preserve the validated function? |
Mark each cell supplied, conditional, missing or deviation. A declaration that an accessory is “available” does not close the product-identity, sequencing or system-logic gates.
Define production checks without pretending they are qualification
Production need not repeat every destructive or full-load qualification test, but it must protect the characteristics on which the interlock depends. A practical control plan may include part-number verification, pin-length or go/no-go identification, conductor and tool checks, contact insertion and retention, retention-pin presence, cavity-to-wire map, point-to-point continuity, isolation between circuits and a controlled mate/unmate sequence check.
If pin lengths are difficult to distinguish after assembly, prevent mixing earlier through kitting, scanning, keyed trays or controlled work orders. Do not rely on operator memory. Record serial or lot links for the main housing, auxiliary contacts and finished harness when traceability is required.
Define reaction plans. A wrong cavity, missing retaining pin, loose auxiliary lead or unstable sequence should place the assembly on hold. Rework must use the approved extraction tool and instruction, then repeat the affected retention, continuity and sequence checks. Repeated extraction may damage a housing or contact; obtain the manufacturer’s reuse limits rather than inventing one.
Freeze change-control triggers
Require review before changes to:
- main housing, latch, handle, spring, key or mating counterpart;
- auxiliary carrier, retaining clip or pin;
- pin or socket length, contact material, plating or supplier;
- cavity assignment, wire gauge, insulation diameter, cable type or color;
- crimp tool, die, locator, settings, pull criteria or solder process;
- auxiliary-lead slack, cable tie, clamp, routing or breakout position;
- controller input voltage, thresholds, pull resistance, wetting current or protection;
- filter, debounce, firmware task timing, timeout or state machine;
- contactor, charger, inverter, pre-charge path or suppression;
- main-circuit capacitance, inductance, voltage, current or protective device;
- connector mounting, cable mass, withdrawal speed assumption or service procedure;
- endurance, temperature, vibration, contamination or corrosion requirement; and
- test fixture, instrument, sampling rate or acceptance calculation.
A dimensional equivalent is not automatically a sequence equivalent. A firmware-only change can invalidate physical margin without changing the connector. A contactor substitution can lengthen current-decay time while the pilot trace looks identical. Review the whole event chain.
Send a complete auxiliary and pilot contact RFQ
Attach the system one-line diagram, connector-interface drawing, main-circuit voltage and current profile, load type, pre-charge architecture, controller I/O schematic, required event ladder, truth table, movement-speed range, environmental and cycle profile, qualification matrix, quantities, installation context and change terms.
Require every bidder to return:
- exact main and auxiliary connector BOM for both halves;
- contact-length and cavity schedule;
- manufacturer drawings and current assembly instructions;
- electrical limits for each auxiliary circuit and actual load/interface comparison;
- termination tooling and inspection process;
- make/break order with tolerance in both directions;
- latch, retention, strain-relief and lead-slack details;
- controller logic, debounce, timing and fault-response records where included in scope;
- synchronized sequence evidence under the agreed movement and load cases;
- endurance and environmental evidence tied to the exact construction;
- routine test, traceability, rework and change-notification plans;
- all assumptions, exclusions and deviations; and
- current price, MOQ, sample timing, bulk lead time and packaging for the frozen scope.
Use the connector mating-assurance guide for latch seating and retention evidence, and the battery disconnect auxiliary-contact guide when the auxiliary device is part of a switch rather than the removable connector interface. These controls are related but not interchangeable.
Use the full SINAWATTS catalog only to orient the product discussion. A category page or photograph is not evidence of an auxiliary option or sequence. Send a project-specific connector RFQ with the event ladder, contact-length BOM, circuit truth table and verification matrix. Any offered rating, compatibility, certification, capability, price, MOQ, stock or lead time must be confirmed in the current written quotation and supporting documents.
Buyer FAQ
Is every small contact in a battery connector a pilot contact?
No. It may be an auxiliary power contact, signal contact, communication contact or a contact intentionally sequenced as a pilot. Name the circuit purpose and obtain the exact physical sequence. Size alone does not define function.
What does last-mate/first-break mean?
It means the named contact makes after a reference contact during mating and breaks before it during unmating. It describes order, not a guaranteed number of milliseconds, a load-interruption rating or proof that the main circuit is de-energized.
Does an early-break pilot make a connector safe to unplug under load?
Not by itself. It can provide notice to a controller. The system must detect the change, command the appropriate device, reduce current within the available interval and handle failures. The exact connector also needs any applicable energized-unmating evidence.
Can an auxiliary contact drive a contactor coil directly?
Only if the contact’s model-specific DC load rating, inrush duty, suppression requirements and life evidence cover the exact coil circuit. A controller input is often a different and lighter duty. Do not infer permission from a generic current number.
Can the same contacts carry CAN communication?
Some named product families identify CAN as a possible use, but the finished network still needs conductor pairing, return and shield strategy, topology, termination, impedance and system validation. The connector statement alone is not a CAN harness qualification.
Do different pin lengths guarantee the required sequence?
They enable a geometric sequence when installed in the correct carrier and cavities. Require the manufacturer’s length definitions, mating tolerances and an assembled check. Wrong kitting, housing play, wear or incomplete seating can defeat the intended order.
Should the pilot circuit be normally open or normally closed?
Choose the circuit and diagnostic behavior from the system risk analysis. A closed loop that opens on withdrawal can detect an open wire, but a short across the loop may mask separation. Other schemes use resistance coding or communication. Document detectable and undetectable faults.
Does pilot-open prove the main contacts have separated?
No. With a first-break pilot, the intended condition is often the opposite: the pilot opens while the main contacts remain engaged long enough for current reduction. Verify main state and stored energy separately.
How should sequence be measured?
Use a controlled fixture and synchronized channels for position or travel, each relevant auxiliary state, controller command, switching-device response, main current and voltage. Test the agreed speed range, tolerances and conditioned samples. Record the trigger and instrument timing.
Is a continuity tester enough for incoming inspection?
It can confirm mapping and static state, but it does not prove dynamic order or timing. Incoming inspection should also verify part identity and contact-length control. Qualification must establish the dynamic sequence.
Can we substitute a visually identical auxiliary pin?
Not without documented equivalence and review. Length, plating, retention, conductor range, termination and contact geometry may affect sequence and reliability even when the exposed tip looks similar.
What if the pilot contact bounces during withdrawal?
Define the raw bounce limit and controller response. Filtering must reject irrelevant chatter without consuming the required shutdown interval. Repeated transitions can also be a diagnostic or maintenance condition.
What if the pilot wire breaks while the connector remains fully mated?
The controller should enter the defined fault response for an open loop. That response may resemble withdrawal detection, but service diagnostics should distinguish a wiring fault from a connector event where practical.
Do REMA auxiliary and pilot accessories have the same sequence as Anderson SBE/SBX auxiliaries?
Do not assume so. The current REMA page confirms accessory relationships within named REMA families. The Anderson page publishes a sequence for named SBE/SBX auxiliary arrangements. Obtain the exact REMA accessory drawing and sequence for a REMA offer.
What should buyers compare besides connector price?
Compare the complete two-sided BOM, contact sequence, interface suitability, tooling, harness assembly, controller behavior, dynamic evidence, fault response, routine controls, spares and change process. Then price that same frozen scope.
Official and original-manufacturer sources checked on 2026-10-08
- Anderson Power Products SBE/SBO/SBX connector-series page — named family architecture, auxiliary-position options, four 1x4 pin lengths, auxiliary sequencing relative to the main contacts and bounded application examples.
- Anderson Power Products SBE/SBX assembly instruction 1S6556 — model-bounded auxiliary conductor, crimp, seating, tug-check, housing retention, lead-slack and de-energized-assembly instructions.
- REMA connector-family page — manufacturer evidence that named MRC, IRC and DIN-family configurations support identified auxiliary and pilot-contact accessory relationships, without establishing a universal sequence.
These pages were checked on October 8, 2026. Product documents, part numbers, approvals and compatibility can change. Obtain the current controlled drawing and instruction for every quoted item. The cited pages do not certify a SINAWATTS product or an unnamed connector system.