SCHNEIDER ELECTRIC ABR-1S418B

Schneider Electric ABR-1S418B Solid-State Interface Relay

Description

The ABR-1S418B is a compact and reliable solid-state interface relay, part of Schneider Electric’s established line of automation components, formerly under the Telemecanique brand. This module is designed for interfacing between control systems (like PLCs) and higher power loads, providing electrical isolation and signal amplification. Its solid-state design ensures a long operational life with no moving parts, making it suitable for high-frequency switching applications.

Specifications

• Manufacturer: Schneider Electric
• Type: ABR-1S418B
• Control Voltage: 24V AC/DC
• Output Type: 1 NO (Normally Open) Solid-State
• Maximum Switching Current: 2A
• Mounting: DIN Rail
• Width: 17.5 mm
• Connection Type: Screw terminals

Label Info

• Brand: Schneider Electric / Telemecanique
• Model: ABR-1S418B
• Approvals: UL, CSA, CE

Application

This interface relay is ideal for use in industrial control panels, automation systems, and process control applications. It can be used to switch small contactors, solenoid valves, indicator lights, and other low-power loads while protecting sensitive PLC outputs from voltage spikes and overloads.

Country of Origin

Made in France.

CO2 Impact

Reusing this component saves approximately 2.0 kg of CO2 compared to manufacturing a new one. This choice supports sustainable industrial practices by reducing waste and energy consumption.

Availability

This item is an obsolete but functional part, available from stock. It is an excellent choice for repairs and maintenance of existing systems. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the main advantage of this solid-state relay over a traditional electromechanical relay?

The primary advantage is its unlimited electrical lifespan due to the absence of moving parts. This results in silent operation, much faster switching speeds, and resistance to shock and vibration, making it ideal for high-cycle applications.

Can I use this ABR-1S418B to switch an inductive load like a contactor coil?

Yes, solid-state relays are suitable for switching inductive loads. However, it is crucial to ensure the peak voltage and current of the load are within the relay’s specifications. For highly inductive loads, an external protection device like a snubber or freewheeling diode might be recommended.

Is the 24V AC/DC input polarized?

No, the control input (terminals A1/A2) for this model is designed for both AC and DC voltage and is not polarized. You can connect the positive and negative (for DC) or line and neutral (for AC) to either terminal without affecting operation.

Last Update: Friday, March 13, 2026

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