Modular contactors

Modular contactors


Modular contactors are a group of devices - actuators, which allow for economical and safe control of the current flow in electrical installations. They are used, among others, in control systems for heating, lighting, ventilation and electric motor power supply systems.
A modular contactor is a type of mechanical connector that is mounted on a rail in control cabinets. The design of the contactor consists of working contacts - one or more pairs, a coil and an electromagnet.

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Contact configuration

Contact configuration

Switching power cat. AC1 (230V)

Switching power cat. AC1 (230V)

Coil supply voltage

Coil supply voltage

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  • Contact configuration: 2 × NO
  • Switching power cat. AC1 (230V): 4 kW

Modular contactor ST25-20

ST25-20, 5908312593997
Current 25 A. Voltage 230 V AC. Power AC1 4 kW. Power AC3 1.3 kW.
Electromagnetic contactors in modular case for direct mounting on rail 35mm.