Siemens 3RH2911-2HA22 Auxiliary Switch, Front-Mounted, Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RH2911-2HA22 is a high-quality auxiliary switch designed for front mounting on contactors and contactor relays. It features 2 normally open (NO) and 2 normally closed (NC) contacts, providing versatile switching options for industrial automation and control applications. Equipped with spring-loaded terminals, this auxiliary switch ensures secure and reliable electrical connections, enhancing the overall performance and safety of your system.

Key Features

• Type: Auxiliary switch, front-mounted

• Contact Configuration: 2 NO + 2 NC

• Current Path: 1 NC, 1 NC, 1 NO, 1 NO

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

• Compatibility: Designed for Siemens 3RT2 contactors and 3RH2 contactor relays

• Durability: High-quality construction ensures long service life under industrial conditions

• Easy Installation: Front-mounted design simplifies mounting and wiring

Benefit

1. Reliable Switching: Ensures accurate control of contactors and relays with minimal maintenance.

2. Enhanced Safety: Spring-loaded terminals prevent loose connections and reduce electrical hazards.

3. Versatile Use: Supports both NO and NC switching configurations for various industrial applications.

4. Easy Integration: Compatible with Siemens 3RT2 and 3RH2 series, allowing seamless upgrades or replacements.

5. Time-Saving Installation: Front-mounted design and clear labeling speed up installation and reduce errors.

Function and Installation

The 3RH2911-2HA22 switch block mechanically attaches to the front of a compatible 3RT2 contactor or 3RH2 contactor relay. When the main device’s coil is energized (or de-energized), the auxiliary contacts switch simultaneously, providing electrical feedback and enabling interlocking functions in the control circuit. The snap-on design ensures tool-free installation, maintaining the modularity and efficiency of the SIRIUS system.