What are the key features and ratings of the KUPO KHTN213-4?

The KUPO KHTN213-4 is a 16 A CEE form connector (inline female) rated for 110-130 V reduced-voltage safety circuits, commonly deployed on construction sites to protect workers from electric shock. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 1.0-2.5 mm². The IP44-rated housing measures 130 mm overall with a body diameter of 52 mm.

How does the KHTN213-4 contribute to worker safety on construction sites?

The KHTN213-4 connector (inline female), rated for 16 A at 110-130 V, includes integrated safety mechanisms to protect both the operator and connected equipment. The keyed earth contact at the 4h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. Operating at 110-130 V reduces the risk of fatal electric shock. In the UK and parts of Europe, BS 7671 wiring regulations mandate 110 V center-tapped supplies on construction sites, delivering only 55 V to earth. This significantly reduces the risk of fatal electric shock for workers handling the connector in wet conditions.

What determines the mating compatibility of the KHTN213-4?

The KUPO KHTN213-4 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 (16 A), voltage class (110-130 V), pole configuration (3-pole (2P+E)), and earth contact clock position (4h). The clock position keying acts as a mechanical interlock: a 110-130 V connector with a 4h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.

How do you open and wire the KUPO KHTN213-4 for cable assembly?

Open the bayonet twist-lock housing, prepare the cable by stripping conductors to the specified length, and secure each conductor in its terminal. The contact tubes inside the connector receive the plug's pins during mating. Close the housing by pressing and rotating clockwise until the bayonet locks click into place. The KHTN213-4 accepts cables from 1.0-2.5 mm² through a 15 mm cable entry opening. The overall body length is 130 mm with a body diameter of 52 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.

In what environments and industries is the KUPO KHTN213-4 commonly used?

The KHTN213-4 is specifically designed for construction site reduced-voltage safety circuits designed to protect workers from electric shock in wet or outdoor conditions. It is the standard connector for UK and European construction sites mandating 110 V center-tapped supplies under BS 7671 wiring regulations. Common deployments include portable power tool circuits, outdoor maintenance and repair work, temporary lighting on building sites, and any installation where reduced shock risk is a priority.

Why choose the 110-130 V KHTN213-4 instead of the standard 220-250 V KHTN213?

The KHTN213-4 operates at 110-130 V, which is the mandated safety voltage for construction sites in the UK and parts of Europe under BS 7671 wiring regulations. Using a center-tapped 110 V transformer, the maximum voltage to earth is only 55 V, significantly reducing the risk of fatal electric shock compared to 220-250 V mains. The yellow housing and 4-hour clock position physically prevent it from being plugged into a standard 220-250 V blue socket, eliminating the risk of connecting reduced-voltage equipment to full mains power. Choose the KHTN213-4 for any site where regulations or safety policy require reduced-voltage power distribution.

KHTN213-4 -CEE Connector 16 A 3P 110-130 V 4h IP44

Name: KHTN213-4 | KUPO CEE Connector 16 A 3P 110-130 V 4h IP44
Brand: KUPO
SKU: KHTN213-4

1 1

View full details

Product Description

Overview

Reliable 110-130 V power distribution across temporary and permanent installations requires connectors that resist environmental exposure and prevent cross-mating between incompatible systems. The KUPO KHTN213-4 is a 16 A CEE form connector (inline female) 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 IP44 (Ingress Protection 44) splash-proof construction deliver the durability and safety needed for demanding 110-130 V 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 4-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 16 A loads
All terminal screws face the same direction for faster, more intuitive wiring
Anti-loosening fin structure maintains a secure connection even under vibration
Yellow-coded housing identifies the 110-130 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, Reduced-voltage safety circuits for portable tool power supply (UK standard), Outdoor construction and maintenance work requiring 110 V protection, Light industrial equipment and single workstation power, Manufacturing lines and factory floor equipment connections, Cable assemblies, extension leads, and portable equipment connections, and Entertainment and live event production.

Compatibility

The KUPO KHTN213-4 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 4-hour clock position earth contact permits mating only with connectors of the same 110-130 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?

16 A maximum; 110–130 V AC; 3 poles (2P+E); 4h earth-contact position.

What conductor size does it accept?

1.0–2.5 mm² conductors.

What are the protection rating and operating temperature?

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

What are its dimensions?

A: 130; B: 75.6; C: 15; D: 52. 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?

Inline female connector.

Download

Download KHTN213-4 Spec Sheet (PDF)