WTPNSPKIT - TPN Single Phase Conversion Kit **NEW**

The WTPNSPKIT Single Phase Conversion Kit allows you to adapt 125A TPN (Three-Phase Neutral) distribution boards for single-phase use quickly, safely, and cost-effectively. Instead of replacing a full 3-phase board, this kit provides the components required to repurpose it for single-phase loads while maintaining compliance with the 18th Edition of BS 7671.

Compact and easy to install, the kit is ideal for retrofit projects, phased power upgrades, or sites where only single-phase supply is needed in the short or medium term. Built with durable materials, it ensures reliable performance and a long service life.

• Compatible with: 125A WTPN Three-Phase Distribution Boards
• Purpose: Converts TPN (3-phase) boards to single-phase applications
• Compliant: Suitable for use under UK wiring regulations
• Quick Installation: No major board modifications required
• Cost-Effective: Repurpose existing boards rather than buying new

• Product Code: WTPNSPKIT
• Board Compatibility: 125A TPN distribution boards (WTPN series)
• Application: Converts three-phase boards to single-phase
• Installation: Direct fit kit, no major modifications
• Standards: Designed for use under BS EN 61439-3 and BS 7671 (18th Edition)

This kit is designed for electricians familiar with TPN board installations. Disconnect all power before starting. Fit according to the instructions supplied with the kit. Always test after installation to confirm safe conversion and compliance with BS 7671. If in doubt, consult the DNO or an NICEIC-approved contractor.

What does this kit actually do?

It allows you to use a 125A three-phase distribution board for single-phase installations, without needing to buy a new single-phase unit.

Which boards is this kit compatible with?

It is designed for the WTPN series 125A TPN distribution boards.

Is it compliant with UK wiring regulations?

Yes. When installed correctly, the kit is fully compliant with the 18th Edition of BS 7671.

When would I use this kit?

Typical scenarios include retrofit jobs, phased upgrades from 3-phase to single-phase supply, or when only single-phase is needed temporarily on a site with a TPN board installed.