BG Electrical CUSPDT21N Type 2 Single Phase Surge Protection Device

Replacing the now-discontinued CUSPDT21, the BG Electrical CUSPDT21N Type 2 Single Phase Surge Protection Device provides robust protection for electrical installations against transient overvoltages caused by grid disturbances or industrial switching events. Designed as part of the BG Fortress range, this Type 2 40kA surge arrester safeguards equipment, appliances and control systems from damage, ensuring long-term reliability and compliance with the latest wiring standards.

High Performance and Easy Monitoring

Engineered for single-phase applications, the CUSPDT21N offers a breaking capacity of 40kA, providing strong, consistent defence in both residential and commercial environments. The built-in status indicator gives a clear visual signal of the device’s operational condition, enabling straightforward maintenance and ensuring ongoing protection at a glance.

Compliant and Compatible for Modern Installations

Fully tested and certified to BS EN 61643-11, BS EN 62305, and BS 7671, this SPD meets UK safety and performance regulations for overvoltage protection. Compact and simple to install, it integrates seamlessly into BG Fortress consumer units or other compatible single-phase systems, helping electricians meet the surge protection requirements of the 18th Edition Wiring Regulations.

Features of the G Electrical CUSPDT21N Type 2 Single Phase Surge Protection Device:

• Type 2 single phase arrester
• Breaking capacity: 40kA
• Max back up fuse: 100A gG
• Number of modules: 1
• Number of poles: Single pole and neutral
• Height: 98mm
• Width: 18mm
• Depth: 69mm

If you just need some help, would like to take advantage of our Price Promise or perhaps have a large order to place give our team of professionals a call on 0203 994 5470, drop us an email at sales@electricpoint.com or use our Contact Form.