KHTN6451 – KUPO CEE Form 125A 5-Pole Industrial Inlet, 400V, IP67
IEC 60309 panel inlet, 16 – 50mm² cable range, PA6 Nylon, nickel-plated brass, CE certified.
- Amperage rating: 125A
- Voltage: AC 380~415V, 5-pole (3P+N+E), 6h
- Connector type: Inlet (panel male), IEC 60309
- Cable size: 16 – 50mm²
- Housing: Flame retardant PA6 Nylon, Red & Gray
- Contact material: Brass (nickel-plated)
- IP rating: IP67
- Operating temp: -25°C to 40°C
- Standard: IEC/EN 60309-1, IEC/EN 60309-2
- Compatibility: Intermates with all IEC 60309 connectors of matching rating
- Certifications: CE, RoHS, REACH
Learn more
CE marked per Low Voltage Directive 2014/35/EU. Compliant with IEC/EN 60309-1: 1999 +A1:2007 +A2:2012 and IEC/EN 60309-2: 1999 +A1:2007 +A2:2012. RoHS compliant per Directive 2011/65/EU and (EU)2015/863. EU REACH Regulation No 1907/2006 Article 33(1). Operating temperature: -25 to 40 degrees Celsius. IP67 rated: protected against dust ingress and temporary immersion in water.
Fully intermates with all IEC 60309-compliant industrial plugs and sockets of matching amperage, voltage, and pole configuration. The standardized earth contact position (clock hour keying) prevents cross-mating between different voltage ratings, ensuring safe connection across multi-vendor installations.
Best suited for:
Permanent panel-mounted power distribution in electrical enclosures, switchgear assemblies, generator output panels, portable power distribution racks for touring and events, and industrial control cabinets requiring standardized IEC 60309 connection points. Also suited for high-current industrial feeders, main power distribution for large-scale events and temporary installations, heavy machinery power supply, and primary service connections requiring robust multi-pole termination.
Product Description
Panel installations for 380-415V 125A circuits require connectors that combine secure mounting, reliable contact integrity, and protection against incorrect mating. The KUPO KHTN6451 is a 125A CEE form inlet (panel-mount male) designed to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards. Its flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight construction deliver the durability and safety needed for demanding 380-415V environments.
Key Features
- Protective earth engages first and releases last, ensuring the ground path is established before live contacts connect
- Keyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems
- IP67 watertight housing withstands temporary immersion up to 1 meter and complete dust ingress for harsh outdoor and wet environments
- Rugged screw-type coupling maximizes mechanical strength and sealing integrity for stable performance in demanding conditions
- Flame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties
- Nickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 125A loads
- All terminal screws face the same direction for faster, more intuitive wiring
- Panel-mount design with standardized cutting hole dimensions for straightforward integration into enclosures, distribution boxes, and equipment panels
- Red-coded housing identifies the 380-415V voltage class per international IEC 60309 color convention
- Rated for operation from -25 to 40 degrees Celsius
Certifications & Standards
- CE Marked: Low Voltage Directive 2014/35/EU
- IEC/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers
- IEC/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories
- RoHS Compliant: Directive 2011/65/EU and (EU)2015/863
- REACH Compliant: Regulation No 1907/2006, Article 33(1) Obligation
- IP67 Watertight
Applications
- Temporary and permanent power distribution on construction sites
- Three-phase heavy machinery, motor drives, and HVAC (Heating, Ventilation, and Air Conditioning) systems
- Welding equipment and pump station power supply
- Heavy industrial main distribution feeds and generator connections
- Site main incomers and primary power infrastructure
- Distribution boards, switchgear assemblies, and equipment panel installations
- Entertainment and live event production
Compatibility
The KUPO KHTN6451 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 380-415V voltage class, preventing cross-connections between incompatible electrical systems.
Voltage Color Convention
CEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.
Frequently Asked Questions
Frequently Asked Questions: KUPO KHTN645 CEE Form Inlet 63A 5P 380-415V IP67
How is the KUPO KHTN645 configured and what specifications does it offer?
The KUPO KHTN645 is an 63A CEE form inlet (panel-mount male) rated for 380-415V operation with IP67 (Ingress Protection 67) watertight protection, designed for the harshest outdoor and wet environments. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP67-rated housing has a flange dimension of 120 mm and requires a panel cutout of 100 mm.
How does the IP67 watertight rating of the KHTN645 protect against water and dust ingress?
As a panel-mounted inlet feeding 63A 380-415V power into equipment, the KHTN645 prioritizes safe power transfer at the point of entry. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP67 (Ingress Protection 67) rating means the KHTN645 withstands temporary immersion in water up to 1 meter for 30 minutes and provides complete dust-tight protection. This exceeds the standard IP44 splash-proof rating found on most CEE form connectors.
Can the KUPO KHTN645 be used with non-KUPO IEC 60309 connectors?
The KUPO KHTN645 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.
How is the KHTN645 mounted into an equipment panel or distribution board?
Cut the panel opening to the specified cutout dimensions. Mount the inlet from the rear of the panel so that the pins protrude through to the front. Secure with mounting hardware and wire the internal conductors to the terminals from behind the panel. The KHTN645 has a flange dimension of 120 mm and requires a panel cutout of 100 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP67 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.
What types of installations benefit most from the KHTN645?
The IP67-rated KHTN645 serves installations where standard IP44 splash protection is insufficient. Typical deployments include outdoor music festivals in rain-exposed areas, marine and dock-side power distribution, mining and quarrying temporary power systems, outdoor industrial processes with water exposure, and any heavy-duty 380-415V installation in persistently wet or dusty conditions.
When should I choose the IP67 KHTN645 over the standard IP44 version?
Choose the IP67-rated KHTN645 when the installation is exposed to conditions that exceed the protection of IP44 (Ingress Protection 44) splash-proof connectors. IP44 protects against splashing water and solid objects larger than 1mm, which is sufficient for sheltered outdoor and indoor industrial use. IP67 provides complete dust-tight protection and withstands temporary immersion in water up to 1 meter for 30 minutes. This makes the KHTN645 the right choice for outdoor festivals in persistent rain, marine dock-side installations, wash-down areas in food processing, and mining or quarrying sites with heavy dust and water exposure.
Video and Download
KHTN6451 — Download Spec Sheet (PDF) ↓
