Silent contactor 230VAC 3NO 25A AC-7a/b ESC325S

Universal contactor for lighting and load control

The ESC325S contactor from Hager is a reliable device designed to control various loads in electrical installations. It is suitable for both residential buildings, commercial and industrial facilities. Its quiet operation, thanks to the applied technology, minimizes acoustic disturbances, which is especially important in residential and office spaces. The design with three normally open contacts (3NO) allows simultaneous control of multiple circuits, increasing the functionality of the system.

Characteristics and application

The device is designed to operate with a rated voltage of 230…400 V AC and a current of 25 A. The use category AC-7a/b indicates its suitability for applications related to lighting control and other loads of a resistive or inductive nature. The maximum switching capacity for incandescent bulbs is 1900 W, and for fluorescent lamps – up to 1990 VA (with DUO compensation), making it a versatile solution for different types of lighting. This contactor finds application in home automation systems, lighting control in production halls, as well as in industrial applications requiring reliable switching of loads.

Construction and mounting

The ESC325S contactor is mounted on a standard DIN rail, which facilitates and speeds up installation. Its compact dimensions (installation depth 60 mm and width 2 modules) allow for efficient use of space in the distribution board. The degree of protection IP2X provides basic protection against touch and ingress of solid objects. The lack of a manual control slider eliminates the risk of accidental change of contact state during maintenance or repair of the installation. The possibility of additional equipment allows adaptation of the contactor to specific application requirements – it can be equipped with mechanical accessories or connection terminal covers.