Fusebox Type 2 SPD Unit 100A MCB Main Switch Retrofit

FuseBox F3M2SPDZ — 100A Main Switch & Type 2 Surge Protection Retrofit Kit

The FuseBox F3M2SPDZ is a compact, trade-friendly retrofit solution combining a 100A main switch and a Type 2 surge protection device (SPD) in a metal enclosure. Specifically designed to upgrade existing FuseBox F3 series consumer units, it allows rapid addition of surge protection without replacing the full board.

Ideal for domestic and light-commercial installations, this kit provides high-capacity isolation and effective transient over-voltage protection, helping safeguard electronics and increasing compliance with modern wiring regulation requirements.

Up-Grade Protection with Minimal Disruption: By integrating the main switch and Type 2 SPD into one unit, the F3M2SPDZ simplifies installation at the meter tail or consumer unit, reducing labour and improving system resilience. Its metal enclosure supports direct busbar connection, enabling an efficient retrofit.

Trade-Driven Design: Manufactured with a robust steel enclosure, padlockable cover option, and knock-out entries for 20mm and 32mm cables, this kit meets the practical demands of contractors. The pre-fitted SPD module includes a status flag for visual indication of protection health.

Key Features of the FuseBox F3M2SPDZ Include:

• Combined 100 A Main Switch & Type 2 Surge Protection Device for Retrofit Use
• Direct Busbar Connection to Existing FuseBox F3 Series Consumer Units
• Metal Enclosure with 20 mm & 32 mm Knock-Outs for Easy Tail Entry
• Padlockable Front Cover for Added Site Security
• Built-In Type 2 SPD to Protect Sensitive Electronics from Transient Surges
• Status Indicator Flag on SPD Module for Visual Protection Health Check
• Designed for Simple Replacement or Upgrade of Existing Boards
• Suitable for Domestic and Light Commercial Installations with High Load Requirements

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