KHTN0451 – KUPO CEE Form 125A 5-Pole Industrial Plug, 400V, IP67
IEC 60309 industrial plug, 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: Plug (inline 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:
Industrial power distribution on construction sites, temporary event power for concerts and festivals, outdoor installations requiring splash-proof connections, generator hookups and portable power systems, workshop and factory floor equipment, and HVAC system connections in commercial buildings. 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
Part of KUPO's complete CEE form connector range spanning 16A to 125A and 110V to 400V, the KHTN0451 is a 125A plug (inline male) designed for 380-415V 5-pole (3P+N+E) circuits. Like every connector in the range, it features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first/earth-last engagement sequence comply with IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, ensuring safe interoperability with any compliant CEE connector.
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
- Anti-loosening fin structure maintains a secure connection even under vibration
- 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
- Cable assemblies, extension leads, and portable equipment connections
- Entertainment and live event production
Compatibility
The KUPO KHTN0451 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 KHTN0451 CEE Form Plug 63A 5P 380-415V IP67
What does the KUPO KHTN0451 provide in terms of electrical ratings and design?
The KUPO KHTN0451 is a 63A CEE form plug (inline 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 6-25 mmsq. The IP67-rated housing measures 175 mm overall with a body diameter of 105 mm.
How does the IP67 watertight rating of the KHTN0451 protect against water and dust ingress?
As an inline male plug carrying 63A at 380-415V, the KHTN0451 incorporates multiple layers of protection for safe field use. 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 KHTN0451 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.
Is the KHTN0451 compatible with CEE form connectors from other manufacturers?
The KUPO KHTN0451 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 KHTN0451 wired and assembled onto a cable?
Open the bayonet twist-lock housing by rotating it counterclockwise, strip the cable conductors to the required length, insert each conductor into its corresponding terminal and tighten the terminal screws. All screws face the same direction for faster, more intuitive wiring. Close the housing by pressing and rotating clockwise until the bayonet locks engage. The KHTN0451 accepts cables from 6-25 mmsq through a 25 mm cable entry opening. The overall body length is 175 mm with a body diameter of 105 mm. The IP67 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.
Where is the KHTN0451 most commonly deployed?
The IP67-rated KHTN0451 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 KHTN0451 over the standard IP44 version?
Choose the IP67-rated KHTN0451 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 KHTN0451 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
KHTN0451 — Download Spec Sheet (PDF) ↓
