SB50-SB120-SB175-SB350 Connector Battery Adapter for automotive wiring

Technical specifications

Will it fit my vehicle?

How to identify the correct unit: locate the reference number stamped on your original component or in the vehicle parts catalogue, then cross-check it against the number below before ordering. Trim and market variants exist for many applications, so the short check is worth the minute before checkout.

How to identify & confirm fitment in 4 steps

1. Locate the OE / reference number on your old part or in the vehicle parts catalogue.
2. Match it to SB50-SB120-SB175-SB350 shown on this page.
3. Send your VIN and engine code plate so our team runs an exact-fit check.
4. Receive fitment confirmation before we dispatch your order.

Cross-reference coverage for connector fitment is listed above; confirm your VIN before ordering.

Overview & context

A direct-fit compatible replacement referenced by SB50-SB120-SB175-SB350 for the applications listed in the fitment block.

Why this unit sells

Buyers searching battery connector look for the strengths listed here: direct fit, verified reference and wholesale packing.

Construction & materials

Built to the original equipment drawing, the Connector follows the same inspection checkpoints as the reference sample. Tolerances that affect installation are held to the drawing rather than adjusted on the bench.

• Surface treated to resist corrosion in road and workshop conditions.
• Dimensional check against the reference sample before packing.

Material and build choices answer the most common connector replacement and connector guide questions from workshop buyers.

Application & fitment

The fitment block above lists the markets and model families this reference is stocked for, so buyers can match demand without re-checking every listing.

Engineering notes

Deep dive. A failing battery connection announces itself as heat and resistance: a plug too hot to touch after use, a discolored or melted housing, green corrosion on contacts, voltage drop under load, or intermittent power on bumps. The SB connector exists to make the battery side of a DC system quick-disconnectable – forklift battery swaps, caravan auxiliary charging, portable solar – while keeping contact resistance low. Each size mates only with its own size, and the stainless retaining spring supplies the contact force, so a worn spring shows up first as loose mating and heat.

Technical background. Crimp the contacts with a tool matched to the wire size – 6-12 AWG on SB50 up to 2/0-4/0 AWG on SB350 – and push each contact into the housing until it locks. Use housing color as voltage keying and never mix colors within one system. Observe the hot-plug limits, about 50 A for SB50 and 100 A for SB175-class parts; above those, break the circuit before disconnecting. Derate for environment: high ambient temperature and bundled cables cut usable current materially, and a fused circuit on the battery side is standard practice.

Deep dive. Inspect connectors on a schedule proportional to duty: monthly for forklift and daily-cycle hardware, seasonally for caravan and solar hardware. Look for heat discoloration on the housing, darkened or pitted contacts, and sprung retaining clips; a contact that no longer grips firmly will heat on every cycle. Clean contacts with a suitable electrical contact cleaner and keep housings free of mud and salt. Measure voltage drop across the mated pair under load as the objective check, and retire any connector that has been mated during a short circuit, since contact faces may have arced.

Application context. Select by current and cable first: match the connector size to the continuous load and wire gauge, remembering SB50 serves 12 V fridges and dual-battery charging while SB175 and SB350 belong to winches, lift trucks and industrial banks. Verify the 600 V rating, silver-plated copper contacts and UL94 V-0 housing as baseline construction. The genderless design halves spares inventory because any two same-size units mate, so standardizing on one series across a fleet pays off. Confirm the keying color matches the voltage convention used in the fleet to prevent cross-connection mistakes.

Deep dive. These connectors are UL-rated components: 600 V ratings across the series, UL 1977 component testing cited for the current ratings, UL94 V-0 flammability on the polycarbonate housing, and specific UL hot-plug ratings of 50 A on SB50 and 100 A on SB175-class parts. Color keying is a safety convention, not an electrical rating – grey for 12 V auxiliary, red for 24 V and blue for 48 V are common in mobile applications – so the standing rule is that voltage must be verified by measurement, never assumed from color.

Application context. Buyers split into mobile and industrial camps. The mobile camp – caravan, 4WD and van owners, solar users, marine upfitters – lives mostly on SB50 for dual-battery and portable-panel connections and values the quick, polarity-safe hookup. The industrial camp – warehouse fleets, floor-care machines, EV pack builders, telecom and energy-storage cabinets – works with SB120 through SB350 where battery swaps and serviceability drive the design. Distributors and workshop buyers stock the full size range plus retaining clips, because a mismatched or worn connector strands equipment exactly when it is needed.

Application context. These connector families age through their contacts and crimps. Spring contact tension relaxes after many mate cycles, raising resistance and heating the housing under load; replace the contact-and-housing set rather than forcing an old pair back together. Inspect crimped wire ends for broken strands where vibration concentrates, and renew cable jackets showing chafe at the housing entry. Keep dust covers on unused connectors, since oxide films on contact surfaces are a hidden cause of voltage drop in otherwise healthy wiring.

Deep dive. Connectors and crimp contacts ship as passive components with no dangerous-goods classification, which simplifies bulk freight and storage. The handling risks are mechanical: exposed contacts scratch plating and collect grit, so keep factory bags sealed until installation and store contact-and-housing sets in labeled bins by amperage family. Avoid heavy stacking that deforms housings. Cold and heat pose little threat in transit, but condensation on bare copper contacts leaves oxide films that must be cleaned before crimping.

Deep dive. Proper tooling is the difference between a joint that lasts and one that burns. Match the crimp tool die to the contact size for each SB family, since SB50 contacts and SB175 contacts use different barrel dimensions and wire ranges. Size the wire gauge to the continuous current, crimp with a calibrated ratchet tool rather than pliers, and pull-test samples from each new operator. Add heat-shrink strain relief at the housing entry, and label both connector halves with the circuit voltage.

Technical background. Outdoors, ultraviolet exposure embrittles housings over seasons, so favor shaded routing or UV-resistant covers for permanent installations. Temperature cycling works crimps loose through differing expansion between copper and housing, so inspect seasonal equipment before each campaign. Near salt water or road salt, plated contacts corrode and contact resistance climbs; dielectric grease on the housing sealing surfaces helps. In freezing conditions, ice inside unsealed housings can block full mating, leaving contacts partially engaged under heavy load.

Application context. For bulk orders, incoming quality checks should include contact plating verification against the batch certificate, sample contact-resistance measurements, and crimp pull tests across the wire ranges you actually use. Ask for material certifications confirming housing flame class and contact base material, and record batch numbers so a drifting supplier lot can be isolated. Sort shipments by family on receipt, because SB50, SB120, SB175, and SB350 contacts look similar in bulk bins yet are mechanically incompatible across families.

Application context. The families are deliberately non-interchangeable: each amperage class uses its own contact size and housing keying, so a contact from one family will not seat correctly in another. Color-coded housings signal system voltage by convention in many industries, but the color is molded in and conveys no electrical rating; two yellow housings can still connect a 12 V battery to a 48 V system. The genderless, identical-halves design means orientation matters: mate halves so polarity aligns per your wiring standard.

Application note. Documented hot-plug ratings reach 50 A for SB50 and 100 A for the SB175 class; operating temperature spans roughly -20 to 105 degrees C, with variants rated down to -40 degrees C.

Supply note. The SB series is a family of two-pole, genderless DC connectors in four current sizes: SB50 at 50 A, SB120 at 120 A, SB175 at 175 A and SB350 at 350 A, all rated 600 V.

Supply note. Contacts are silver-plated copper; housings are polycarbonate with a UL94 V-0 fire rating, and the internal contact spring is commonly 65 Mn steel.

Supply note. The genderless design mates any two same-size housings after a 180-degree flip, and color-coded mechanical keying prevents cross-connection between different voltage systems.

Supply note. Typical wire ranges: SB50 6-12 AWG, SB120 2-6 AWG, SB175 1/0-4 AWG, SB350 2/0-4/0 AWG.

The engineering notes above compile verified reference, material and application data for aftermarket connector and compatible connector.

Quality & authority

Inspection runs on an AQL sampling plan: incoming material, in-process checkpoints and a final release check are recorded on the batch sheet.

After-sales & warranty

12 Months limited warranty against manufacturing defects. Coverage applies to correctly installed units; keep the batch date code so any claim is processed against its inspection record.

Why choose Vidishi Auto

Connector — Connector. Supplied under Vidishi Auto with batch traceability and trade-grade packing; volume pricing and private-label options are available on request.

Packing & delivery

We ship worldwide to distributors and garages from China, Dongguan. Each Connector is packed in a single-unit export carton. Tracked air or sea freight is arranged per order volume.

Bulk quantities of connector supplier and connector bulk order ship in mixed containers from China, Dongguan.

Catalog & cross-reference

Catalog numbering for this Connector: the primary reference is SB50-SB120-SB175-SB350. When a supplier catalog lists superseded or regional formats, match on the numeric core of the code rather than the prefix, then confirm the physical fit.

Catalog cross-references for connector catalog resolve to SB50-SB120-SB175-SB350.

Frequently asked questions

Compliance disclaimer

Vidishi Auto is an independent supplier. This is an aftermarket compatible replacement, not a genuine OEM part. Brand names are trademarks of their respective owners and are used only to identify fitment.

Wholesale & support

Wholesale terms are quoted per market: volume breaks, mixed-SKU containers and private-label options are all handled by the trade desk.

Trade desk replies with quotation, MOQ and lead time in one business day.

Enquiries about wholesale connector and connector price receive quotations within one business day.

Service & checks

Pre-dispatch checks below are confirmed with every order for this application.

• Pre-dispatch checks: the OE / reference number is matched against your old part before packing.

Installation and service notes for oem connector, battery terminal connectors and pvc pipe connectors are confirmed by our technical team before dispatch.

• The OE / reference number is matched against your old part before dispatch.
• Fitment is confirmed by VIN or engine code plate before dispatch.

Workshop teams comparing connector experts, connector cross reference and best connector for aftermarket receive the pre-dispatch checklist with the quotation.

• Each unit is packed in a single-unit export carton for transit.

Installation and service notes for 175a, anderson connector and high current dc connector are confirmed by our technical team before dispatch.

Pinout & keying notes

Connectors are matched to the harness plan; the matching scope below is confirmed before dispatch.

• Configuration checks: the supplied configuration is confirmed against your order before dispatch.

Configuration and service notes for electrical connectors, speaker wire connectors and connectors connectors are confirmed by our technical team before dispatch.

• Pin count and keying are matched against your reference before dispatch.
• Terminal and crimp contact scope follows the published listing.

Workshop teams comparing why upgrade connector, 350a and anderson power connector receive the configuration checklist with the quotation.

• Sealing and housing material are confirmed with the quotation.

Configuration and service notes for high current plug are confirmed by our technical team before dispatch.