PFLS-2Y-S120M40A – PowerFit 400A Line Source Connector (L2), Yellow
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-2Y-S120M40A bridges legacy UK electrical infrastructure with modern safety and performance. Designed for installations using older IEE wiring conventions where yellow designates L2 phase, this Line Source connector delivers 400A continuous capacity with the innovation of a patent key-release pin and push-and-twist mating interface. Yellow phase identification ensures compatibility with heritage installations, touring equipment pre-wired to IEE standards, and mixed-vintage systems where gradual migration to current standards is underway. Male contact design and tool-free disconnection make field servicing seamless.
Key Features
- Male Contact with Patent Key-Release Pin: Proprietary disconnect mechanism eliminates the need for CAM tools or field adjustment—simply push and twist to mate, engage the key-release pin to disconnect.
- Push-and-Twist Connection Method: Intuitive, repeatable mating procedure with no complex alignment or calibration required during setup or teardown.
- Compact POM Cotter Pin: Shorter polyoxymethylene pin optimized for Source variants; removable and re-seatable with a small slotted screwdriver if field maintenance becomes necessary.
- 400A Continuous Rating: Rated for 400A with 120mm² cable; supports 660A configurations using 240mm² cable options.
- IP67 Sealed Connection: Full environmental protection when mated—suitable for outdoor event stages, weather-exposed touring rigs, and damp indoor venues.
- Integrated Cable Management: M40 × 1.5 cable gland with nylon/rubber sealing and 22mm/33mm ID bushing options ensures strain relief across conductor sizes.
Certifications & Standards
- TÜV Rheinland: Certified (ID 1111303479) — Type Approval, Safety, Regular Production Surveillance
- CE Marking: Full European Union authorization
- RoHS & REACH: Hazardous substance compliance confirmed
- UK Legacy Compatibility: Yellow L2 phase identification aligns with IEE wiring color convention used in pre-2004 UK installations
Compatibility
The PFLS-2Y-S120M40A (Line Source, male contact) mates directly with PFLD-2Y-S120M40A (Line Drain, female contact) and PFPD-2Y (Panel Drain) connectors. This connector is compatible with major brands of single-pole power connector systems. Maintain yellow L2 phase consistency throughout circuits to prevent cross-phasing errors and equipment damage. When integrating with modern BS 7909 systems (which use black for L2), implement clear labeling and safety procedures to prevent accidental misconnection.
Applications
- Three-phase power source connections requiring dedicated L2 feed lines
- Entertainment dimmer rack and lighting control source power feeds
- Industrial manufacturing source power connections with three-phase requirements
- Power distribution source connections for mining and heavy industry operations
- Festival and outdoor event source power feeds with weather-exposed installations
- Generator paralleling output connections requiring per-phase source management
- UPS and bypass panel source power cabling for critical infrastructure
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-2Y-S120M40A FAQ
What is the purpose of PFLS-2Y-S120M40A in a PowerFit distribution setup?
PFLS-2Y-S120M40A is a KUPO PowerFit 400A line source connector with a yellow housing, identifying Line 2 (L2) under UK (Old, pre-2004) 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 data center maintenance applications. During data center expansion or maintenance windows, temporary power must be distributed with absolute reliability.
What electrical performance does PFLS-2Y-S120M40A deliver?
PFLS-2Y-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 silver-plated brass contact achieves a contact resistance of just 0.1 milliohms, significantly reducing resistive heating compared to plain brass contacts at sustained high-current loads. This low resistance is particularly important for L2 circuits carrying continuous phase current.
Why choose the yellow L2 variant (PFLS-2Y-S120M40A) for your installation?
Yellow identifies L2 under the legacy UK wiring color code (red/yellow/blue for L1/L2/L3) used before the 2004 harmonization to IEC standards. Legacy UK installations, some Commonwealth countries, and specialty applications still use this color scheme. On the Line Source connector, the yellow 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 L2 circuit. When maintaining or extending pre-2004 UK installations, matching the existing yellow L2 convention prevents confusion between old and new color systems.
What safety certifications apply to PFLS-2Y-S120M40A?
PFLS-2Y-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 does the key-release mechanism work on PFLS-2Y-S120M40A?
The PFLS-2Y-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.
Is PFLS-2Y-S120M40A compatible with single-pole connectors from other manufacturers?
PowerFit connectors are designed to be compatible with major brands of single-pole power connector. The 0.1 milliohm contact resistance minimizes heat generation at connection points, the 500-cycle mating rating supports repeated connect/disconnect during maintenance, and the 1000V AC / 1500V DC rating provides margin for high-voltage DC distribution architectures. For L2 circuits using UK (Old, pre-2004) color conventions, the yellow PFLS-2Y-S120M40A ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.
Video and Download
PFLS-2Y-S120M40A — Download Spec Sheet (PDF) ↓
