Modular contactor ST25-20/24 modular contactor 2NO contacts I=25A coil voltage U=24V AC 1 module ST25-20-24V

Modular contactor ST25-20/24V is a compact device designed to control electrical circuits in domestic and industrial installations. Designed for mounting on a 35mm rail, it offers reliable switching of loads up to 25A. Its modular construction (only 1 module wide) allows for optimal use of space in the distribution board.

Characteristics and application

This electromagnetic contactor, powered by 24V AC, is primarily used in lighting, heating circuits and in controlling small motors. It has two normally open contacts (2NO), which allows controlling two independent circuits or one circuit requiring higher current. Thanks to the rated operating voltage of 230...230V, it is compatible with most standard electrical installations.

Advantages and benefits

• Compact dimensions: A width of only 1 module makes it easy to install in tight distribution boards.
• High reliability: Ensures stable and safe switching of the load.
• Easy installation: Designed for direct mounting on a 35mm rail - saves time and installation costs.
• Versatility: Suitable for controlling various types of loads, from lighting to small motors.
• Protection: Protects the circuit against overload and short circuit - like most circuit breakers in this class.
• Durability: Withstands up to 100,000 electrical and one million mechanical switching cycles, guaranteeing a long service life.
• Safety: IP20 protection degree provides basic protection against touch and ingress of solid objects.

The ST25-20/24V contactor is characterized by a rated current of 25A, a coil voltage of 24V AC and two normally open contacts (2NO). Its width is 1 module, and the switching power AC1 (at 230V) is 4 kW, while AC3 (at 230V) – 1.3 kW.

The ST25-20/24V contactor complies with IEC 61095 standard, which confirms its safety and quality of workmanship. Its solid construction and high-quality materials guarantee trouble-free operation for a long time. The coil power consumption is only 1.2W, which minimizes energy losses. The operating temperature is in the range of -25°C to +50°C, which allows its use in various environmental conditions. Screw terminals allow connection of wires with a cross-section of up to 4 mm².