Fusebox TPN 125A 3P Mains Switch & Unswitched Neutral

The CHINT IT1253N is a robust 125A 3-pole main switch with an unswitched neutral, designed for safe isolation and control of three-phase low-voltage electrical distribution systems. It is widely used as an incoming isolator in distribution boards, providing reliable disconnection of the phase conductors while maintaining a permanent neutral connection for system stability.

This device is commonly installed in commercial, industrial, and light domestic three-phase systems, where a dependable main isolator is required before downstream protective devices such as MCBs or MCCBs. Its solid construction ensures safe switching under load conditions and long-term electrical reliability.

The IT1253N is designed for DIN rail mounting, making it easy to integrate into standard distribution boards. The unswitched neutral configuration simplifies installation by keeping the neutral continuous, reducing wiring complexity while maintaining compliance with typical distribution design practices.