PFLS-3GY-S120M40A – PowerFit 400A Line Source Connector (L3), Grey
400A single-pole line source connector. Key-release pin, IP67, silver-plated brass contacts, TÜV certified.
- Amperage rating: 400A maximum (120mm² cable)
- Voltage rating: 1000V AC, 1500V DC maximum
- Cable: 120mm²; M40 × 1.5 gland with bushing (ID: 22mm & 33mm)
- Terminal: Double set screws, 10.5 N/meter min.
- Connection type: Push-and-twist with key release mechanism
- Connector type: Single-pole, inline, source (male contact)
- Housing: High impact-resistant thermoplastic, UL94-V0
- Contact material: Brass (silver-plated)
- IP rating: IP67 while mated
- Compatibility: Compatible with major brands of single-pole power connector
- Certifications: TÜV Rheinland (ID 1111303479), CE, RoHS, REACH
Learn more
TÜV Rheinland certified (ID 1111303479): Type Approved, Safety, Regular Production Surveillance. CE marked. RoHS and REACH compliant. Flame Class UL94-V0. IP67 rated while mated. Working temperature: 45°C to 85°C. Mating cycle: 500.
Compatible with major brands of single-pole power connector systems. The push-and-twist mating mechanism with key release pin ensures reliable connection geometry and convenient tool-free disconnection across standardized suppliers, enabling integration into existing power distribution infrastructure.
Best suited for:
Mobile power distribution for touring productions and live events, industrial plant power management, generator and UPS distribution panels, renewable energy systems, heavy machinery power supply, and wet or dust-prone environments where IP67 sealing prevents system failures.
Product Description
The PFLS-3GY-S120M40A is a 400A inline cable connector for L3 (Line 3) phase distribution, delivering the precision phase identification demanded by IEC and European electrical standards. This Line Source connector integrates the male contact and innovative patent key-release pin mechanism, enabling rapid push-and-twist engagement and tool-free disconnection. Engineered for industrial power systems requiring stringent European compliance and traceability.
Key Features
- The male contact houses a patent key-release pin that disengages on command. No tools, no guesswork—push, twist, and release. The connector remains fully mated until deliberate key release, preventing accidental disconnection in high-vibration or high-cycling environments.
- Non-conductive, high impact-resistant thermoplastic body meets UL94-V0 standards, providing superior flame resistance for installations in sensitive electrical facilities, clean-room environments, and industrial zones with strict fire safety codes.
- Brass contacts with silver plating reduce oxidation and maintain contact resistance below 0.1 milliohms across 500 mating cycles. Silver plating extends connector lifespan in humid or chemically corrosive industrial environments.
- The source variant uses a shorter POM cotter pin optimized for inline cable operation. Field disassembly with a small slotted screwdriver is possible if pin replacement or contact inspection is required, minimizing downtime.
Certifications & Standards
- Grey is the definitive L3 color under IEC 60061-5A wiring conventions, adopted across Europe and the UK. This connector ensures precise phase management within European power distribution frameworks without interpretation or regional ambiguity.
- TÜV Rheinland certified (ID 1111303479), CE marked, RoHS, and REACH compliant. Meets all current European machinery, low-voltage, and EMC directives for industrial electrical installations.
Applications
- European industrial facilities requiring strict IEC 60061-5A phase compliance
- Clean-room and critical infrastructure requiring UL94-V0 flame resistance
- High-cycle distribution hubs (500+ mating cycles)
- Outdoor installations with IP67 sealed mating protection
- Cable-to-cable power handoff with precise European phase traceability
- Medical, laboratory, and semiconductor manufacturing environments
Compatibility
The PFLS-3GY-S120M40A mates with corresponding PFLD (Line Drain) connectors and PFPS/PFPD panel-mount variants. Compatible with major brands of single-pole power connectors. R120 reduction sleeve (brass, silver-plated) accommodates up to 16.50mm diameter wire.
Phase / Wire Color Convention
| Region | L1 | L2 | L3 | N | Ground |
|---|---|---|---|---|---|
| NA 120/208V 1 | Green / G-Y | ||||
| NA 277/480V 2 | Green / G-Y | ||||
| IEC 60446 3 | Green-Yellow | ||||
| AU/NZ Legacy 4 | Green-Yellow | ||||
| China 5 | Green-Yellow |
1 North America 120/208V (NEMA / NEC) 2 North America 277/480V (NEMA / NEC) 3 Europe, UK, Australia (current IEC 60446)
4 Australia / New Zealand legacy (pre-IEC) 5 China (GB 50303) G-Y = Green-Yellow (earth/ground)
Frequently Asked Questions
PFLS-3GY-S120M40A FAQ
What is PFLS-3GY-S120M40A and what makes it innovative?
PFLS-3GY-S120M40A is a KUPO PowerFit 400A line source connector with a grey housing, identifying Line 3 (L3) under Europe and UK (IEC 60446) conventions. As the source side of an inline cable connection, it features the innovative patent key-release pin that enables tool-free disconnection. The push-and-twist mechanism secures the connection during operation while allowing rapid uncoupling when needed. It is commonly deployed in theme park and entertainment venue applications. Permanent outdoor entertainment installations demand connectors that survive years of sun exposure, seasonal weather changes, and constant operation.
How does PFLS-3GY-S120M40A maintain electrical integrity at high current loads?
PFLS-3GY-S120M40A is rated for 400 amperes continuous with 120mm2 cable, scaling to 660 amperes with 240mm2 cable. The maximum voltage rating is 1000V AC or 1500V DC. The M40 cable gland accommodates cables through two included rubber bushings (inner diameter 23mm and 33mm), and the R120 reduction sleeve (brass with silver plating) handles conductor diameters up to 16.50mm. Set screws require a minimum torque of 10.5 N/m for reliable termination.
Why choose the grey L3 variant (PFLS-3GY-S120M40A) for your installation?
Grey identifies Line 3 (L3) under IEC 60446, completing the European three-phase color set of brown (L1), black (L2), grey (L3). Grey L3 is standard across all EU member states, the UK (post-2004), and countries that have adopted IEC harmonized wiring colors. On the Line Source connector, the grey housing wraps the 170mm body including the area around the key-release mechanism. This means the phase is identifiable even during the push-and-twist connection process, reducing the chance of connecting to the wrong L3 circuit. In large-scale European venue installations, grey L3 connectors provide visual confirmation that all three phases of the IEC set are present and correctly assigned.
What makes PFLS-3GY-S120M40A safe for professional high-current applications?
PFLS-3GY-S120M40A is TUV Rheinland certified (ID 1111303479) under Type Approval, Safety, and Regular Production Surveillance categories. It also carries CE marking, RoHS compliance (Restriction of Hazardous Substances), and REACH compliance. The housing material achieves a UL94-V0 flammability rating, which is the highest classification for vertical flame resistance in plastics, meaning the material self-extinguishes within 10 seconds with no flaming drips. The key-release pin mechanism has been certified as part of the TUV evaluation, ensuring that the disconnect feature meets the same safety standards as the connection itself.
How do you connect and disconnect PFLS-3GY-S120M40A in the field?
The PFLS-3GY-S120M40A features the innovative PowerFit push-and-twist connection. To connect, align the connector and push while twisting until it locks. To disconnect, the patent key-release pin enables tool-free uncoupling. Simply press the release and twist to separate. If needed, a small slotted screwdriver can assist with the release. For cable termination, the process follows the same steps as other PowerFit line connectors: strip 33mm of cable jacket, apply the reduction sleeve, tighten set screws to 10.5 N/m minimum, and secure the M40 cable gland. Uses the shorter cotter pin variant (vs the longer pin in Line Drain). The shorter pin accommodates the key-release mechanism. Never reuse cotter pins.
How does PFLS-3GY-S120M40A compare to traditional single-pole power connectors?
PFLS-3GY-S120M40A offers several meaningful improvements over conventional single-pole power connectors: silver-plated brass contacts deliver lower contact resistance (0.1 milliohms) than plain brass; the integrated M40 cable gland with sealing bushing provides cable strain relief and environmental protection in a single assembly; the patent key-release pin enables tool-free disconnection that traditional locking mechanisms cannot match. These features, combined with TUV Rheinland certification and the phase-encoded grey housing for L3 identification, make PowerFit a generation ahead of traditional designs.
Video and Download
PFLS-3GY-S120M40A — Download Spec Sheet (PDF) ↓
