Siemens 3RH2911-2DA20 Auxiliary Switch for 3RT2.1 Contactors 2 NO, Lateral, Spring-Loaded Terminals Original Brand New

Overview

The Siemens 3RH2911-2DA20 is a high-quality, lateral auxiliary switch designed to expand the functionality of Siemens 3RT2.1 contactors. This essential accessory provides two normally open (2 NO) contacts, allowing for greater control and monitoring in your electrical circuits. Its innovative design features spring-loaded terminals, which significantly reduce installation time and ensure a secure, vibration-proof connection.

Key Features & Benefit

• Seamless Integration: Specifically designed for use with Siemens 3RT2.1 contactors, ensuring perfect fit and optimal performance.
• Reliable Connections: The spring-loaded terminals offer a fast, tool-free wiring solution that is resistant to vibration and provides long-term reliability.
• Enhanced Control: Adds two normally open (2 NO) auxiliary contacts, which are crucial for feedback loops, signaling, and interlocking circuits.
• Compact & Efficient: The lateral mounting position saves valuable panel space, allowing for more components in a smaller footprint.
• Genuine Siemens Quality: Manufactured to the highest standards, guaranteeing durability and consistent operation in industrial environments.

Function

The Siemens 3RH2911-2DA20 auxiliary switch performs the following key functions:

• Circuit Feedback: Provides a signal to a PLC (Programmable Logic Controller) or control system indicating the state (open or closed) of the main contactor.
• Interlocking: Used to prevent two or more contactors from being energized at the same time, which is critical for safety and equipment protection.
• Status Indication: Connects to indicator lights or other signaling devices to visually show the operational status of the contactor.

Technical Specification

• Product Number: 3RH2911-2DA20
• Type: Auxiliary Switch, Lateral
• Contact Configuration: 2 NO (Normally Open)
• Terminal Type: Spring-Loaded Terminals
• Compatibility: For Siemens 3RT2.1 Contactors
• Terminal Numbers:
  • Left Side: 43/44, 53/54
  • Right Side: 23/24, 33/34
• Current Path: 1 NO, 1 NO

For more of our products, visit Turll