PFLD-NBL-S120M40A – PowerFit 400A Line Drain Connector (N), 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 IEC 60445 colour code standard has become the global baseline for electrical safety and system identification. Blue insulation for neutral conductors is now the dominant international convention, adopted across Europe, the UK, and increasingly worldwide. The PFLD-NBL-S120M40A delivers a 400A-rated neutral connection that embodies this global standard, ensuring instant recognition and seamless integration into modern, internationally-aligned installations. With dual-rated 400A/660A capacity and rated for 1000 volts AC or 1500 volts DC, this female contact line drain connector provides the low-impedance, fault-tolerant neutral pathway required by contemporary industrial systems, utility grids, and renewable energy infrastructure. Choose blue insulation when specification compliance and global interoperability are paramount.
Key Features
- Rated Current: 400A / 660A dual-rated
- Voltage Rating: 1000V AC maximum / 1500V DC maximum
- Withstand Voltage: 4500V test (three seconds)
- Short Circuit: 35.5 kilo-amperes symmetrical
- Insulation Resistance: Greater than 5000 megohms at 500V DC
- Contact Resistance: 0.1 milliohms nominal (at rated current)
- Operating Temperature Range: 45 to 85 degrees Celsius
- Mating Cycles: 500 cycles minimum
- Ingress Protection: IP67 when mated
Certifications & Standards
- IEC 60445: Compliant with international colour code standard for electrical conductors
- TÜV: Certified to TÜV standard 1111303479
- CE Marking: Compliant with European Union directive requirements
- RoHS Directive: Compliant with 2011/65/EU (Restriction of Hazardous Substances)
- REACH Regulation: Registered and compliant with EC 1907/2006 (Registration, Evaluation, Authorisation, and Restriction of Chemicals)
- UL94-V0: Housing meets highest flame-resistance specification
Applications
- European and international utility-scale power distribution systems requiring neutral continuity at 400A capacity
- Industrial switchgear, control cabinets, and modular power systems aligned with IEC standards
- Renewable energy installations (solar farms, wind turbines, battery energy storage) in Europe and beyond
- Heavy industrial machinery and process automation requiring neutral return paths with minimal impedance
- Data centers, telecommunications infrastructure, and mission-critical facilities operating under IEC compliance
- Marine and offshore platforms requiring international colour code compliance and high fault current handling
- Portable power solutions and mobile power generation systems serving European and global markets
- System integrations across multiple regions where IEC 60445 ensures universal recognition and interoperability
Compatibility
The PowerFit 400A Line Drain female contact connector is fully compatible with male contacts from major single-pole power connector families operating under IEC standards. The push-and-twist coupling mechanism (non-CAM) delivers intuitive, reliable mating with consistent electrical and mechanical integrity across all connection cycles.
Cable gland accommodation: M40×1.5 thread (interior diameter 22 millimeters standard, or 33 millimeters with optional brass silver-plated reduction sleeve). Accommodates cables up to 16.50 millimeters diameter when using the reduction sleeve.
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-NBL-S120M40A FAQ
What makes PFLD-NBL-S120M40A different from a standard inline power connector?
PFLD-NBL-S120M40A is a KUPO PowerFit 400A line drain connector with a blue housing, designated for the Neutral (N) conductor under Europe and UK (IEC 60446) 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 N conductor across cable runs. It is commonly deployed in sports venue and stadium event applications. Stadium events combine massive power demands with outdoor exposure and strict safety requirements.
What voltage and amperage is PFLD-NBL-S120M40A rated for?
PFLD-NBL-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.
What does the blue housing on PFLD-NBL-S120M40A indicate about its neutral assignment?
Blue as Neutral follows IEC 60446, the current harmonized European and UK standard. Under IEC, blue is exclusively reserved for the neutral conductor. This is the most commonly specified neutral color in international installations and is mandatory in EU member states. On the Line Drain connector, the blue housing is visible along the full 190mm body length, making N 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. Using blue for neutral in IEC jurisdictions is not optional. It is a code requirement that simplifies circuit identification and improves safety across multi-national installations.
What safety standards govern the design and manufacture of PFLD-NBL-S120M40A?
PFLD-NBL-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 makes PFLD-NBL-S120M40A practical for field assembly during setup?
To assemble PFLD-NBL-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.
What makes PFLD-NBL-S120M40A versatile for sports venue and stadium event applications?
PowerFit connectors are designed to be compatible with major brands of single-pole power connector. The dual 400A/660A rating handles the largest venue power feeds, 13 color-coded variants support complex multi-circuit distribution plans, and CE marking plus TUV certification satisfy international event safety standards. For N circuits using Europe and UK (IEC 60446) color conventions, the blue PFLD-NBL-S120M40A ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.
Video and Download
PFLD-NBL-S120M40A — Download Spec Sheet (PDF) ↓
