Siemens Auxiliary switch, spring-terminal, 2NO Part number 3RV2901-2F

Product Overview

The Siemens SIRIUS 3RV2901-2F is an auxiliary switch module designed for use with SIRIUS 3RV2 motor protection circuit breakers. It provides additional signalling contacts to enhance monitoring, control, and interlocking functions in industrial automation systems. Its compact transverse-mounting design allows for easy installation and reliable operation in control panels and switchgear assemblies.

Key Features

• Auxiliary switch module with transverse mounting orientation
• Provides two additional signalling contacts for monitoring or interlocking
• Compatible with Siemens SIRIUS 3RV2 motor protection circuit breakers (sizes S00 to S3)
• Spring-type terminals for quick and vibration-resistant wiring
• Compact, touch-safe design ideal for dense control panel layouts
• High mechanical reliability for industrial use

Technical Specifications

• Product Series: Siemens SIRIUS 3RV2 Accessories
• Article Number: 3RV2901-2F
• Contact Configuration: 2 Normally Open (2 NO)
• Mounting Type: Transverse mounting, snap-on to circuit breaker housing
• Rated Insulation Voltage (Ui): 300 V AC
• Rated Impulse Voltage (Uimp): 4 kV
• Protection Class: IP20 (with connected conductors)
• Connection Type: Spring-type terminals
• Conductor Cross-Section: 0.5 – 2.5 mm² (solid or stranded)
• Operating Temperature: –20 °C to +60 °C
• Net Weight (Approx.): 0.04 kg

Compliance & Certifications

• Manufactured in accordance with IEC 60947 standards for auxiliary switch devices
• RoHS compliant and designed for industrial automation environments
• Quality assured under Siemens SIRIUS accessory production standards

Applications

The 3RV2901-2F is ideal for use in motor control centres, automation panels, and industrial machinery where auxiliary signalling is required. It enables reliable feedback, interlocking, and operational monitoring of SIRIUS 3RV2 motor protection circuit breakers, ensuring safe and efficient system performance.