Siemens 3RH2 Contactor Relay with 24V DC Coil Voltage, 10A Contact Current, 4 NO Auxiliary Contacts, DIN Rail 3RH2140-1JB40

Siemens 3RH2140-1JB40 is a SIRIUS series contactor relay designed for professional industrial automation and control systems. It operates with a 24V DC coil voltage and supports a maximum contact current of 10A suitable for controlling auxiliary circuits in demanding electrical and industrial automation applications.

The device features four normally open auxiliary contacts (4 NO) which enable flexible switching configurations, ideal for coupling contactor relay purposes. Mounted easily on DIN rails, this compact relay measures 57.5mm in length, 45mm in width, and 73mm in depth, ensuring efficient space utilization in control panels.

Engineered for rigorous industrial environments, this relay operates reliably between temperatures of -25°C and 60°C and uses screw-type terminals for secure connections and simplified installation. Compliance with IEC 60947-5-1 standards guarantees that the relay meets stringent electrical safety requirements.

Its robust design includes an integrated surge suppressor diode for increased operational reliability and supports operation in relative humidity levels between 10% and 95%. The relay can handle both AC and DC currents and features a mechanical service life rated for approximately 30 million operating cycles, reflecting outstanding durability and performance longevity.

Operates with a 24V DC coil voltage for automation control. Handles contact currents up to 10A with high reliability. Equipped with four normally open auxiliary contacts for versatile circuit switching. DIN rail mount design supports quick and secure installation.

Wide operating temperature range from -25°C to 60°C suitable for harsh environments. Screw terminal connections provide ease of wiring with strong contact. Meets IEC 60947-5-1 standard for industrial electrical equipment.

Compact construction saves panel space with dimensions 57.5mm x 45mm x 73mm. Integrated surge suppressor diode enhances durability and stability. Mechanical lifecycle up to 30 million cycles ensures long-term use.

This Siemens contactor relay is ideal for industrial, manufacturing, automation, and electrical control system applications requiring reliable switching capabilities under varying environmental conditions. Its German manufacture assures quality and adherence to international standards.

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