PFLD-3BL-S120M40A – PowerFit 400A Line Drain Connector (L3), Blue
400A single-pole line drain connector. IP67, silver-plated brass contacts, push-and-twist lock, 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
- Connector type: Single-pole, inline, drain (female 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. Silicone O-ring seal. 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 ensures reliable connection geometry and secure locking 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 PowerFit 400A Line Drain connector in blue is a universal power connector solution, recognized as Line 3 (L3) phase across USA NEC, UK older BS 7671, and Australian AS/NZS standards. This remarkable phase harmony makes the blue connector ideal for multi-region installations, global equipment deployments, and industries that operate identical systems across North America, Europe, and the Asia-Pacific region without phase-labeling ambiguity. The female contact push-and-twist design supports 400 to 660 amperes across dual voltage ratings (1000V AC / 1500V DC maximum), while the non-conductive thermoplastic housing and silver-plated brass contacts provide corrosion immunity and stable long-term electrical performance. TÜV certification and IP67 mating protection round out a connector engineered for unambiguous phase recognition in globally distributed power infrastructure.
Key Features
- Universal L3 Phase Recognition: Blue coding identifies this connector as Line 3 in USA NEC, UK older BS 7671, and Australian AS/NZS 3000 standards—three major regulatory frameworks use identical color designation, eliminating phase confusion across borders.
- Silver-Plated Brass Contacts: Superior tarnish and corrosion resistance; maintains contact resistance at 0.1 milliohms in salt spray, humidity, thermal cycling, and chemical environments that would degrade plain brass.
- High Impact-Resistant Thermoplastic Housing: Non-conductive material absorbs mechanical shock and resists UV degradation, chemical attack, and temperature extremes without fracturing or leaching contaminants.
- Patent Key-Release Pin (Source Connectors): Single-handed, tool-free disconnection on mated pairs; unique spring-loaded mechanism ensures safe separation without risk of accidental re-engagement or partial contact.
- Dielectric Test to 4500 Volts AC: Exceeds many industrial standards; confirms insulation integrity and leakage path safety even in moisture-saturated or contaminated environments.
- TÜV Type Approval with Surveillance: Continuous third-party monitoring of production quality; regular audits and testing ensure every unit meets specification regardless of volume or run time.
Certifications & Standards
- Blue identification as L3 (Line 3) phase is consistent across three major international wiring standards. This universal recognition eliminates guesswork in cross-border installations, retrofit projects, and supply chain integrations where equipment originates from multiple countries or regulatory zones.
Applications
- Complete three-phase power distribution requiring all three phase inline connectors
- Large-scale touring production feeder cable systems for arenas and stadiums
- Industrial automation and motor drive power distribution cabling
- Welding power supply connections and high-current process equipment
- Marine and shipboard temporary power connections with environmental sealing
- Portable substation feeder cables for utility and emergency power deployment
- Commercial and institutional power distribution during renovation or expansion
Compatibility
The PowerFit 400A Line Drain connector is compatible with major brands of single-pole power connector systems. Its push-and-twist mating mechanism ensures standardized connection geometry across certified suppliers. The female contact mates with PowerFit Line Source and Panel Source connectors. Verify mechanical and electrical specifications with your mating connector manufacturer to confirm impedance matching and safe operating parameters. Use the color-coded and mechanically keyed design as a visual safeguard to prevent cross-phase connection errors during installation or reconfiguration.
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
PFLD-3BL-S120M40A FAQ
What makes PFLD-3BL-S120M40A different from a standard inline power connector?
PFLD-3BL-S120M40A is a KUPO PowerFit 400A line drain connector with a blue housing, identifying Line 3 (L3) under Multiple conventions (NEC, Australian, UK Old) conventions. As the drain side of an inline cable connection, it receives the mating source contact and provides a sealed, IP67-rated junction when coupled. The blue housing enables instant visual identification of the L3 conductor across cable runs. It is commonly deployed in emergency and disaster response applications. Emergency power deployment happens in the worst possible conditions: flooded areas, debris fields, extreme weather.
How much current can PFLD-3BL-S120M40A safely handle in continuous operation?
PFLD-3BL-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 insulation resistance exceeds 5000 megaohms at 500V AC, and the test voltage rating of 4500V AC provides substantial safety margin. The short circuit rating of up to 35.5 kiloamperes means the connector can withstand fault conditions without catastrophic failure.
What does the blue housing on PFLD-3BL-S120M40A represent under Multiple conventions (NEC, Australian, UK Old) standards?
Blue as L3 enjoys unusually broad cross-convention agreement. It represents L3 in North American NEC (black/red/blue), Australian (red/white/blue), and old UK (red/yellow/blue) standards. This makes blue L3 one of the most universally understood phase colors in the world. On the Line Drain connector, the blue housing is visible along the full 190mm body length, making L3 identification easy even when cables are bundled tightly. The ergonomic rubber grip section also carries the color, so technicians can identify the phase while handling the connector. The dual identity of blue (L3 in NEC/Australian vs Neutral in IEC) makes proper phase-encoded labeling essential on international projects.
How is PFLD-3BL-S120M40A certified for professional use?
PFLD-3BL-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 silicone O-ring seal contributes to the IP67 rating when mated, meaning the connection is fully protected against dust ingress and temporary immersion in water up to 1 meter for 30 minutes.
What tools and steps are needed to terminate PFLD-3BL-S120M40A?
To assemble PFLD-3BL-S120M40A, remove the M40 cable gland and extract the contact. Insert the contact into the insulator and align the cotter pin hole. Strip back the cable jacket by approximately 33mm, then slide the R120 reduction sleeve (brass with silver plating, up to 16.50mm wire diameter) over the exposed conductor. Hammer the cotter pin in from its chamfered side for proper seating. Slide the cable with reduction sleeve into the contact, then tighten both set screws using a 5mm hex key to a minimum of 10.5 N/m. Finally, thread the cable gland back on. The M40 gland includes two rubber bushings (inner diameter 23mm and 33mm) for flexibility with different cable sizes. At 190mm total length with a 32.5mm body diameter, the Line Drain is the longest connector in the PowerFit family, providing ample space for cable management and a secure grip surface.
Can PFLD-3BL-S120M40A be integrated into an existing power distribution system?
PowerFit connectors are designed to be compatible with major brands of single-pole power connector. Color-coded phase identification reduces the training needed for correct connection, the push-and-twist mechanism is intuitive even under stress, and IP67 protection means the connectors function in standing water. For L3 circuits using Multiple conventions (NEC, Australian, UK Old) color conventions, the blue PFLD-3BL-S120M40A ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.
Video and Download
PFLD-3BL-S120M40A — Download Spec Sheet (PDF) ↓
