Rotary modular isolating switch 3P 125A, size 3 HAD312

Isolator switch – reliable power disconnection

This modular rotary isolator switch, with a rated current of 125A and 3 poles, is a key element of any electrical installation. It provides safe and reliable disconnection of the load, which is essential during maintenance, repairs or modernization. Its compact design and the possibility of mounting on a TH35 rail make it ideal for distribution boards and electrical panels.

Functionality and application

The device is designed to operate in installations with a rated voltage of 380-415V AC. It performs the function of a main, safety and maintenance disconnect switch. Therefore, it finds application in both residential, commercial and industrial buildings. A short rotary handle provides convenient operation, and the locking mechanism increases safety – preventing accidental switching on of the circuit during maintenance work.

Construction and parameters

The isolator switch is characterized by a solid construction and high quality of workmanship. Made of durable materials, it guarantees long-lasting and trouble-free operation. The rated continuous current Iu is 125A, and the switching capacity at 400V is as much as 82 kW. It is worth noting the high short-circuit current Iq – 25 kA, which indicates the device's resistance to overloads. Screw connection ensures secure and reliable connections of rigid conductors with a cross-section of up to 70 mm². The IP20 protection degree protects against accidental contact with live parts. The device is intended for mounting on a plate or in distribution boards, but is not suitable for central or indirect front mounting.