Product Overview

The 3RH2122-1BD40 is a contactor relay featuring 2 NO + 2 NC contacts, 42 V DC operation, screw terminal connections, and frame size S00. This auxiliary contactor from the SIRIUS 3RH2 series is designed for switching control signals in control circuits, offering reliable performance in industrial automation applications with lower voltage DC systems.

Key Features

Contact Configuration: 2 normally open (NO) contacts and 2 normally closed (NC) contacts provide versatile switching capabilities for various control circuit requirements.

Voltage Rating: 42V DC rated control supply voltage ensures reliable operation in low-voltage DC control systems.

Current Rating: Rated operation current of 3A at 400V handles standard control circuit loads effectively.

Terminal Type: Screw connection terminals provide secure and reliable electrical connections suitable for industrial environments.

Frame Size: Size S00 compact design offers space-efficient installation in control panels.

Technical Specifications

• Rated Control Supply Voltage (DC): 42V
• Number of Auxiliary Contacts: 2 NO + 2 NC
• Rated Operational Current: 3A at 400V
• Connection Type: Screw terminals
• Frame Size: S00
• Net Weight: 0.293 kg
• Packaging Dimensions: 50.00 x 61.50 x 77.50 mm
• Country of Origin: Germany

Applications & Benefits

The SIRIUS 3RH2 contactor relays are engineered for switching control signals in industrial control circuits. Thanks to the multiplication of outputs, simultaneous switching of several auxiliary circuits is possible. The device features standard-compliant terminal designations and reliable, time-saving connection technology.

The contactor relays are climate-resistant, have high contact reliability and are suitable for use worldwide thanks to corresponding approvals (e.g. IEC and UL/CSA). All contacts are available with positively driven operation for safety applications.

This 42V DC variant is particularly suitable for applications requiring lower voltage operation, making it ideal for specialized control systems, battery-powered equipment, and applications where reduced voltage levels are preferred for safety or system design considerations.

The extensive range of accessories for the 3RT2 contactors in sizes S00 to S3 can also be used for the 3RH2 series, providing flexibility in system design and expansion.

Quality & Compliance

• RoHS Compliance: Since 01.10.2009
• Product Lifecycle: PM300: Active Product
• Export Control: AL: N / ECCN: N
• WEEE Compliance: Take-back obligation applicable
• EAN: 4011209928039
• UPC: 040892956580

Product Classification

• eClass: 27-37-10-01
• ETIM: EC000196
• UNSPSC: 39-12-15-29

Download existing graphical data for this product:

• Product Datasheet
• SIRIUS 3RH2 Product Family Overview
• Online Support Portal
• Product Selection Guide
• 3D Models and Technical Drawings
• Manual Downloads
• System Overview Documentation