What is the KUPO KHTN625 and what are its primary specifications?

The KUPO KHTN625 is an 32 A CEE form inlet (panel-mount male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415 V three-phase power distribution. 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 4-16 mm². The IP44-rated housing has a flange dimension of 100 mm and requires a panel cutout of 83 mm.

How does the KHTN625 protect against cross-mating with incompatible voltage systems?

As a panel-mounted inlet feeding 32 A 380-415 V power into equipment, the KHTN625 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 IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1 mm, maintaining protection integrity within the enclosure.

Can the KUPO KHTN625 be used with non-KUPO IEC 60309 connectors?

The KUPO KHTN625 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 (32 A), voltage class (380-415 V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415 V 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 KHTN625 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 KHTN625 has a flange dimension of 100 mm and requires a panel cutout of 83 mm. The cable size range for this unit is 4-16 mm². All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.

What are the typical applications for the KHTN625?

As a medium-duty three-phase inlet, the KHTN625 serves catering and event equipment, multi-circuit temporary power distribution, medium industrial machinery, welding equipment, and workshop power feeds. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 380-415 V connection point for Full three-phase distribution with the ability to supply both three-phase and single-phase loads from one connection. Essential for distribution boards, mixed-load panels, and temporary event power systems.

Why does the KHTN625 use a 5-pole configuration instead of 4-pole?

The KHTN625 uses 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 critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN625 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.

KHTN625 -CEE Inlet 32 A 5P 380-415 V 6h IP44

Name: KHTN625 | KUPO CEE Inlet 32 A 5P 380-415 V 6h IP44
Brand: KUPO
SKU: KHTN625

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Product Description

Overview

With earth-first contact engagement, IP44 (Ingress Protection 44) splash-proof protection, and bayonet twist-lock housing, the KUPO KHTN625 is a 32 A CEE form inlet (panel-mount male) engineered for 380-415 V power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts deliver high impact resistance, corrosion protection, and low-resistance electrical paths under sustained 32 A loads. The keyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems, meeting IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards.

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
IP44 splash-proof housing provides protection against splashing water and solid objects larger than 1 mm
Tool-free bayonet twist-lock housing enables fast open/close access for wiring on busy jobsites
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 32 A 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 380-415 V voltage class per international IEC 60309 color convention
Rated for operation from -25 to 40 °C

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; IP44 Splash-proof. Match standards and compliance requirements to the local electrical code before installation.

Applications

Suitable for 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, medium industrial equipment and multi-circuit temporary power, catering, event, and festival power distribution, distribution boards, switchgear assemblies, and equipment panel installations, and entertainment and live event production.

Compatibility

The KUPO KHTN625 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 380-415 V voltage class, preventing cross-connections between incompatible electrical systems.

Voltage Color Convention

IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations

CEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130 V, Blue for 200-250 V, Red for 380-480 V, and Black for 500-690 V. 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

What are the electrical ratings?

32 A maximum; 380–415 V AC; 5 poles (3P+N+E); 6h earth-contact position.

What conductor size does it accept?

2.5–10 mm² conductors.

What are the protection rating and operating temperature?

IP44. Operating temperature: −25 to 40 °C.

What are its dimensions?

A/B: 75; C/D: 60; E: 16.5; F: 55; G: 64; H: 4.5. All dimensions are in mm; labels correspond to the drawing in the product PDF.

What materials are used?

Flame-retardant PA6 nylon housing, with nickel-plated brass contacts.

What connector style is this?

Panel-mount male inlet.

Download

Download KHTN625 Spec Sheet (PDF)