Main switch (isolator), 40A, 1-pole HIS-40/1 142816

Professional isolation switch for electrical switchgear

The HIS-40/1 main switch is a compact single-pole device designed for the safe disconnection of electrical circuits under voltage. With a rated current of 40A and a voltage of 240V AC, it serves effectively as a main switch in residential building switchgear.

Design and technical parameters

The device has a single-module width (17.7 mm), is mounted on a standard TH-35 rail, has an installation depth of 69.5 mm, and weighs only 0.1 kg. The switch is equipped with lift terminals allowing for wire connections up to 50mm².

The device's short-circuit strength is 1 kA, and the rated breaking capacity reaches 12.5 kA. These parameters guarantee safe operation even under short-circuit load conditions. The design features one normally open contact, without additional normally closed or changeover contacts.

Functionality and safety

The switch provides isolation, enabling permanent disconnection of the power supply during maintenance or repair work. The device can be padlockable, which further increases the level of safety during service work.

The "arrow" symbol on the front panel allows for quick identification of the switch function. The IP40 protection rating protects against finger access to hazardous parts and against solid objects larger than Ø1mm.

Operating conditions and durability

The device operates in temperatures from -5°C to +40°C, allowing for installation in various environmental conditions. The thermal loss per pole at the rated current is 1.9 W, which is important information for designers of switchgear cooling systems.

The switch complies with RoHS directive requirements and is intended for use in application switchgear for residential applications.