3RH2911-1LA11

Description

Overview

The Siemens SIRIUS 3RH2911-1LA11 is a high-quality, instantaneous front-mounted auxiliary switch block designed to expand the signaling and control capabilities of your industrial contactors and contactor relays. Part of the reliable SIRIUS modular system, this auxiliary switch ensures seamless integration and dependable performance in your control circuits. It provides a crucial 1 Normally Open (1 NO) and 1 Normally Closed (1 NC) contact configuration.

Key Benefit

• Reliable Performance: Ensures accurate switching and control for industrial systems.

• Easy Installation: Front-mounted design with screw terminals simplifies wiring.

• Versatile Application: Compatible with Siemens 3RT2 contactors and 3RH2 contactor relays.

• Durable Design: Built to withstand industrial environments for long-term use.

• Compact & Efficient: Saves space while providing essential auxiliary functions.

Function

• Provides auxiliary contacts for control and signaling of electrical circuits.

• 1 NO + 1 NC contacts allow flexible circuit configurations.

• Supports cable entry from the top for straightforward wiring.

• Compatible with Siemens 3RT2 contactors and 3RH2 contactor relays.

Technical Specification

• Model Number: 3RH2911-1LA11

• Type: Auxiliary Switch

• Contacts: 1 NO + 1 NC (73/74, 81/82)

• Current Path: 1 NO, 1 NC

• Mounting: Front of contactor

• Cable Entry: Top

• Connection: Screw terminal

• Compatible With: 3RT2 contactors, 3RH2 contactor relays

Application

The Siemens 3RH2911-1LA11 is widely used in industrial automation and control systems, including:

• Motor Control Centers (MCCs)
• Pump and Fan Control
• Conveyor Systems
• HVAC Applications
• Machine Control Panels
• General Industrial Control Circuitry

For more information on the full Siemens SIRIUS range and other high-quality industrial products, visit turll today!