Siemens 3RH2911-2NM22-0MC0 Auxiliary Switch, Solid-State Compatible, 2 NO + 2 NC Original Brand New

Overview

The Siemens SIRIUS 3RH2911-2NM22-0MC0 Auxiliary Switch is a high-performance, front-mounting accessory designed to expand the control and signaling capabilities of compatible Siemens contactors. Engineered for modern industrial automation, this auxiliary switch block features 2 Normally Open (NO) and 2 Normally Closed (NC) instantaneous contacts, providing reliable status feedback and interlocking functions.

A key feature is the inclusion of a contact with solid-state compatibility, making it perfectly suited for interfacing with low-power electronic control systems like PLCs. The innovative spring-loaded terminals ensure quick, reliable, and vibration-proof wiring without the need for tools.

Key Features & Function

• Configuration: 2 Normally Open (NO) + 2 Normally Closed (NC) contacts

• Current Path: 1 NO (solid-state compatible), 1 NO, 1 NC, 1 NC

• Terminal Type: Spring-loaded for secure and quick connections

• Compatibility:

  • For 3RT102..-.X...-0LA(0.2) with adapter 3RT2926-4NA00

  • For 3RT103..-.X...-0LA(0.2) with adapter 3RT2936-4NA00

• Mounting: Front-mounted for easy access

• Durability: Built to withstand industrial conditions

Benefit

• Ensures reliable signal transmission in control circuits

• Easy installation reduces maintenance time

• Compatible with solid-state devices for enhanced system performance

• Compact front-mounted design saves space in control panels

• High durability for industrial environments

Application

This auxiliary switch is essential for various industrial and electrical control applications, including:

• Interlocking logic in motor starter circuits.
• Signaling contactor status (ON/OFF) to PLCs or indicator lights.
• Creating holding circuits for control applications.
• General control circuit expansion in automation panels.

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