Generator docking stations, distro boxes, broadcast power panels, load-bank assemblies, and private-label connector programs. The connector is never the whole project. KUPO Power delivers the configuration ladder, the certification roadmap, and the test-and-traceability pack that sophisticated OEM buyers already expect from top interconnect suppliers.
Equipment OEMs and panel builders do not buy connectors. They buy a design-to-manufacture-to-verification pipeline. The connector is the starting point. What they actually need is configuration flexibility, a certification roadmap that does not blow up the timeline, and a supplier that says yes to private label, custom colors, and co-branded runs.
What OEM buyers and panel builders tell us about working with the wrong connector supplier:
• The connector is never the whole project. OEMs need a full pipeline: Design for Manufacturability review, prototyping, cable assembly and overmold, test plan, certification evidence, serialized traceability, and kitting. A catalogue vendor who stops at the product page is not an OEM supplier.
• Certification scope mistakes are expensive. UL 1682 covers pin-and-sleeve devices but explicitly does not apply to single-conductor pin-and-sleeve devices. Single-pole locking separable connectors belong under UL 1691. Mis-scoping the compliance program wastes months and money. Know which standard applies before you start.
• Tooling economics have very different profiles. Color selection and labeling changes have no tooling cost. Mold insert changes have medium tooling cost and a validation step. New housing designs have the highest cost and require re-verification. Buyers need a supplier who can navigate all three tiers and tell them which level their request actually requires.
• Private label has three layers that must not be confused. Regulatory markings (certification marks, voltage ratings, torque values) must remain correct and durable. Operational identification (phase, keying, cable range) is the safety layer. Brand identity (logo, part number, project code) is the commercial layer. Mixing these up creates compliance risk and field safety incidents.
• OEMs want evidence packs, not just certificates. Contact resistance, insulation resistance, dielectric withstand, thermal rise, mechanical pull, and IP verification results: quantified, traceable, and structured for submission to the authority having jurisdiction. Marketing text is not procurement documentation.
KUPO Power offers three connector platforms for OEM and custom programs. The right choice depends on your regional market, installed-base ecosystem, and the safety-and-sealing requirements of your end application.
K-LOK 150A: 150A max, 600V max, cable #8 to #2 AWG, non-conductive retaining screw. UL Listed. K-LOK 400A: 400A max, 600V max, cable #6 to 4/0 AWG. UL Listed. Custom contact aperture sizes available (16.90mm standard; 14.60mm and 10.40mm custom). Intermates with industry-standard cam-type single-pole connectors.
Best for: North American market. Generator and load-bank docking station OEMs, temporary power distribution panel builders, entertainment and theme-park integrators, any build requiring cam-type ecosystem compatibility. K-LOK contact aperture customization is a key OEM lever for matching conductor and termination strategy.
View K-LOK 150A → View K-LOK 400A →400A continuous with 120 mm² cable. 1000Vac withstand. 4500Vac test voltage. 35.5kA short-circuit rating. IP67 mated. IP2X finger protection unmated. UL94-V0 housing. TUV certified. Patented key-release mechanism. M40 cable gland. Cross-mating compatible with Powerlock®.
Best for: outside broadcast and touring power systems, utility generator connection points, safety-forward OEM builds where secondary locking, IP67 sealing, and tool-free key-release are required specifications. OEM programs that need to say yes to private label and custom colors.
View PowerFit 400A →16A to 125A. 110V to 400V. IP44 and IP67 variants. 2P+E, 3P+E, 3P+N+E configurations. IEC 60309-1 and -2 compliant. Intermateable with conforming manufacturers. CE, RoHS, and REACH certified.
Best for: European and global panel interfaces, industrial equipment distribution inputs, construction site assemblies (IEC 61439-4), EV Mode 2 emergency charging via CEE socket, any OEM build requiring standardized multi-pole interchangeability and multi-vendor sourcing.
View CEE Form collection →IEC 61439-4 governs assemblies for construction sites and applies when connectorized distribution is integrated into a portable assembly. IEC 61984 provides connector safety requirements and test methods that procurement teams can require as structured test evidence even for proprietary connector families. UL 1682 explicitly does not cover single-conductor pin-and-sleeve devices; for cam-type and single-pole locking separable connectors, the applicable North American scope is UL 1691. Know which standard governs your program before submitting to a certification lab.
OEM programs move through a five-level ladder from fastest-to-market to highest-investment. Each level has a different cost profile, lead time, and certification impact. We tell you which level your request actually requires, so you can plan the program correctly from the start.
Colors, keying schemes, cable gland sizes, contact apertures, labeling. No new tooling. Fastest path to market. Inventory planning is the primary bottleneck, not engineering or certification.
Cable assemblies, overmolding, strain-relief boot design, panel gasket systems, sealing boot kits, accessory bundles. Uses established manufacturing processes (cut, strip, crimp, overmold). Medium lead time. Validation and process capability become the bottleneck.
Private-label packaging, laser or ink marking on housing, logo tooling on cover plates. Implemented on top of Level 1 or 2 configurations. Logo tooling on covers does not require re-certifying the core electrical design if implemented correctly (per Eaton cam-lock cover logo precedent).
Non-standard gland variants, bushing configurations, alternative termination styles (set-screw vs. crimp vs. lug), multi-cable adapters. Requires engineering validation and process documentation. May require localized test evidence depending on the change scope.
Highest tooling investment and longest lead time. Requires full re-verification: dimensional tests, dielectric withstand, thermal rise, IP qualification, and potentially a full regional certification cycle (CE/UKCA, UL/cUL, BSMI). MOQ and amortization structure vary by program. We work through the economics with you before committing tooling spend.
What we bring to every OEM engagement, from first inquiry through production ramp:
We review your enclosure cutouts, stud formats, gland sizing, cable bend radius, and service clearances before you finalize mechanical design. Catching integration issues in DFM review costs nothing. Catching them during pilot tooling costs months.
Sample kits ship before you commit to a program. Interface drawings and dimensional data are available for your mechanical team. We support early-stage bench testing so you arrive at the certification lab with a design that is already proven, not a design that is being proven for the first time.
We build you a BOM matrix that maps colors, gland sizes, contact aperture options, and accessory kits to orderable part numbers. Your purchasing team can place re-orders without calling engineering every time.
Continuity, insulation resistance, dielectric withstand (hipot), contact resistance sampling, mechanical pull, IP verification (IEC 60529), and thermal rise plan. We align the test plan to your target region (CE/UKCA, UL/cUL, BSMI/CNS 15663) and help structure the evidence pack for the authority having jurisdiction.
Lot traceability, serialized test records where required, and controlled change management for materials, plating specifications, and resin grades. When a polymer supplier changes a compound formulation, you hear about it from us before it touches your product, not after it fails your UL 94 audit.
Maintenance kits (retaining pins, cable glands, sealing components), field repair guidance, crew training materials, and single-use part flagging. We document which components must not be reused so your field crews do not have to guess.
Every OEM certification program follows a three-layer structure. Understanding which layer your project triggers determines your timeline and budget:
• Base standard layer. IEC 60309 for CEE Form devices. IEC 61984 for connector safety tests applicable across families. UL 1691 for single-pole cam-type and PowerLock-style connectors in North America. This is the foundation.
• Market access layer. CE/UKCA marking for EU/UK. UL/cUL listing for North America. VDE or KEMA for additional European market access. BSMI for Taiwan (aligned with KUPO's home market). Each market requires different test regimes and submission structures.
• Substance compliance layer. EU RoHS restricts hazardous substances in electrical and electronic equipment. REACH places disclosure obligations on the supply chain. Taiwan CNS 15663 implements marking-of-presence requirements tied to BSMI certification flows, including specific labeling and disclosure formats. This layer is often overlooked until a customer audit flags it.
| OEM application | Primary market | Recommended platform |
|---|---|---|
| Generator and load-bank docking stations | North America | K-LOK 400A (UL Listed, cam-type ecosystem) |
| Temporary power distro panel builds | North America | K-LOK 150A and K-LOK 400A |
| Outside broadcast and touring power systems | UK, EU, AU | PowerFit 400A (TUV, IP67, key-release) |
| Industrial panel and machine interfaces | Global | CEE Form IEC 60309 (intermateable, CE marked) |
| Private-label connector program | Any | K-LOK, PowerFit, or CEE Form. Start with Level 1 or 3 of the customization ladder. |
| Sequential mating distribution boxes | UK, EU, AU | PowerFit 400A with custom enclosure integration |
OEM and Custom application brief (PDF, coming soon)
About KUPO manufacturing and global operations
Taiwan family manufacturer. Real OEM capability. Configuration ladder from labeling to new tooling. Certification roadmap for your target region. We say yes where catalogue vendors say call your distributor.
Request a quotePowerlock® is a registered trademark of ITT Cannon / Veam Limited. KUPO Power is not affiliated with or endorsed by ITT. Compatibility claims refer to cross-mating of single-pole connector bodies verified through in-house testing.
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