Modular contactor SM 425 25A 24V 2NO with actuator 412514

Professional modular contactor for installation switchboards

The SM 425 modular contactor is a compact solution for controlling circuits with a rated current of 25 A at a working voltage of 250 V. The device is equipped with a 24 V AC control coil and two normally open (NO) contacts, enabling the control of energy-intensive loads such as heating, lighting, or swimming pool pumps.

Modular design and technical parameters

The modular design occupies only 1 mounting slot (width 17.8 mm) and has a mounting depth of 44 mm, allowing for efficient space utilization in switchboards. Installation is performed on a standard DIN rail, and the IP2X protection rating ensures safe operation in industrial environments.

The device features versatile load capabilities:

• Maximum power for incandescent lamps: 3000 W
• Standard fluorescent load: 2100 VA
• Fluorescent lamps with DUO compensation: 2200 VA
• Parallel compensated fluorescent lamps: 1000 VA

Manual override and control system

A standout feature is the built-in manual override allowing for three operating positions: "ON" (forced connection), "OFF" (forced disconnection), and "AUTO" (coil control). This functionality allows for electrical installation testing, maintenance work, and emergency control without the need to power the coil.

The rated control voltage is 20-26 V AC, ensuring stable operation of the electromagnetic system. Optional accessories are available to expand the device's functionality according to installation needs.

Normative compliance and system integration

The product meets the requirements of the IEC/EN 61095 standard, guaranteeing user safety and compliance with European quality standards. A particular advantage is its compatibility with the EMS CX3 Legrand energy management system, enabling integration into smart building installations.

The device is used for controlling heating circuits, lighting, pumps, and building automation systems. It is suitable for both industrial and building installations that require reliable control while maintaining compact mounting dimensions.