Modular contactor for DIN rail, 2xNO contacts, 25A, 24V DC ST25-20-24DC

Modular contactor for safe circuit control

This modular contactor, designed for mounting on a 35mm rail, is a reliable solution for controlling electrical circuits. Designed for both professional installers and end-users, it provides effective protection and ease of use. The device is characterized by a compact design – it occupies only one module (18mm) – which allows for optimal use of space in the switchgear cabinet.

Construction and operating parameters

The contactor is adapted to work with a control voltage of 24V DC, making it an ideal choice for systems powered by direct current. It has two normally open contacts (2NO), allowing you to connect two independent circuits. The rated operating current is 25A, and the maximum switching capacity for incandescent bulbs is as much as 4000W. Made of high-quality materials, it ensures durability and reliable operation in a wide temperature range – from -25°C to +50°C. Screw terminals with a capacity of 4 mm² facilitate the connection of wires.

Application and benefits

This contactor finds application in various electrical installations, such as:

• Building automation: controlling lighting, heating, ventilation.
• Alarm and fire systems: activating alarm sirens, extinguishing systems.
• Industry: controlling electric motors, pumps, valves.
• Home installations: controlling electrical devices with higher power consumption.

Thanks to compliance with IEC 61095 standard and EU declaration of conformity, you can be sure that the product meets the highest standards of safety and quality. Electrical switching durability at 1x10⁵ cycles and mechanical at 1x10⁶ cycles guarantees long-term and trouble-free operation of the device. Protection class IP20 protects against accidental contact and penetration of solid objects larger than 12.5 mm. Coil power consumption is only 2.2W, which translates to low energy consumption. The insulation voltage is as high as 4kV, which ensures a high level of safety.