Fusebox F1M2SPD Stand Alone Surge Protection Device, Conforms to 18th Edition
SURGE PROTECTION UNIT (SPD). SURGE PROTECTION DEVICE CAN BE INSTALLED BEFORE OR AFTER AN RCD. Flag Indication:Green: Good Red: Replace. Device Mounting:35mm Din Rail. Protection Degree (IP):2XC. System:TN-C-S, TN-S, TT.