ETI R25-20 Modular Contactor 25A 24V 2NO

The ETI R25-20 modular contactor is a robust electrical switching device engineered for precision control in both residential and industrial environments. Rated for a current of 25A and operating on a 24V control voltage, this device features two normally open (2NO) contacts, making it a reliable choice for managing electrical circuits in automation systems. Its compact design allows for seamless integration into standard distribution boards, ensuring efficient space utilization and long-term operational stability.

Advantages

This modular contactor offers exceptional reliability and durability, ensuring consistent performance even under demanding conditions. Its design prioritizes ease of installation, allowing for quick mounting on standard DIN rails, which simplifies the assembly process in electrical panels. The high-quality construction minimizes noise during operation and provides a secure connection for electrical conductors, contributing to the overall safety and efficiency of the electrical installation.

Suitable for

• Residential lighting control systems
• Heating and ventilation automation
• Industrial machinery power switching
• Building management systems
• Pump and motor control circuits

When it may not be suitable

This contactor is not intended for high-voltage applications exceeding its rated specifications or for environments with extreme moisture or corrosive gases. It should not be used in circuits requiring more than two normally open poles or in applications where a different control voltage is required.

Key specifications

• Rated current: 25A
• Control voltage: 24V AC/DC
• Contact configuration: 2NO (2 normally open)
• Mounting type: DIN rail
• Modular design: Compact size for distribution boards

How to use

The ETI R25-20 should be installed by a qualified professional within a suitable electrical enclosure. Mount the device onto a standard DIN rail until it clicks into place. Connect the control circuit wires to the coil terminals and the load circuit wires to the main contact terminals, ensuring all connections are tightened to the manufacturer's torque specifications. Verify that the voltage levels match the device ratings before energizing the circuit.

What to consider before purchase

• Verify that your control circuit provides a 24V signal.
• Ensure the load current does not exceed the 25A rating.
• Check available space on your DIN rail within the distribution board.
• Confirm that a 2NO configuration meets your specific switching requirements.

Usage recommendations

Always inspect the contactor for any signs of physical damage before installation and ensure that the power supply is disconnected during the wiring process to prevent electrical hazards.