Olfeld Plug-In Relays are versatile and reliable switching devices designed to provide efficient signal and load control in industrial automation, electrical panels, and machinery applications. Known for their ease of installation and maintenance, these relays offer a modular approach to switching, allowing for quick replacement, wiring flexibility, and space-saving configurations in control panels.

Our plug-in relays are available in electromechanical and solid-state variants, each engineered to handle a wide range of control voltages and switching capacities. Electromechanical relays provide clear physical switching feedback, high current handling, and versatility for general-purpose applications, while solid-state relays ensure silent, fast, and long-lasting operation for sensitive or high-frequency switching tasks.

Designed with transparent or labeled housings, LED indicators, and standardized socket compatibility, Olfeld relays make troubleshooting and maintenance straightforward. They are built to resist vibration, temperature fluctuations, and electrical noise, ensuring reliable performance in automation systems, HVAC controls, power distribution, and machine tools.

Our relays comply with IEC and EN safety standards and are available in multiple pole configurations with options for auxiliary contacts and time-delay modules. Paired with robust relay sockets and retention clips, Olfeld plug-in relays provide a secure and stable solution for signal isolation, motor control, and logic automation.

Whether for industrial automation upgrades or new panel installations, Olfeld’s Plug-In Relays combine reliability, convenience, and professional-grade performance to ensure your systems run efficiently and safely.