RT18-125AM 1P DIN Rail Fuse Holder 125A 690V

When a single-phase circuit needs reliable cylindrical fuse protection without consuming extra rail space, the Soltree RT18-125AM 1P is the go-to choice. At just 35mm wide (one DIN rail module), it is the most space-efficient configuration in the RT18-125AM series — fitting tight control cabinets where every millimeter counts. Typical applications include single-phase lighting distribution boards, individual machine tool circuits, HVAC compressor feeds and any installation where per-circuit fuse isolation on a single live conductor is required. The flame-retardant, high-temperature resistant housing pairs with thickened copper conductors (conductivity >98%) to keep contact resistance below 5mΩ and current transmission efficiency above 99.5%. Rated 125A / 690V, it accepts standard Φ22×58mm cylindrical fuse links (63A / 80A / 100A / 125A, sold separately) and clips onto any 35mm DIN rail in seconds. A yellow fuse status window enables visual fault checks at a glance, and oversized wiring terminals with premium screws lock down vibration-resistant connections. Every unit is 100% electrically tested before leaving our ISO 9001 certified facility. Note: fuse links are NOT included.