Siemens 3RH2911-1NF11 Auxiliary Switch 1 NO + 1 NC, Solid-State Compatible, Front Mount, for 3RT2 & 3RH2 Contactors Original Brand New

Overview

The Siemens 3RH2911-1NF11 is a premium-quality auxiliary switch designed to provide reliable auxiliary contact functionality in industrial control applications. Engineered for compatibility with 3RT2 contactors and 3RH2 contactor relays, this front-mounted accessory features 1 Normally Open (NO) and 1 Normally Closed (NC) contact, both of which are solid-state compatible. Built with durable screw terminals for easy installation, this auxiliary switch ensures optimal electrical performance and long-term durability in demanding automation environments.

Key Benefit

• Solid-State Compatibility – Ensures seamless integration with modern automation systems.
• Front Mounting Design – Offers easy access and space-saving installation.
• Reliable Contact Configuration – Includes 1 NO and 1 NC contact for flexible control applications.
• Durable Screw Terminals – Simplifies installation and provides secure connections.
• Optimized for Siemens Systems – Specifically designed for use with Siemens 3RT2 and 3RH2 series.

Functionality

The Siemens 3RH2911-1NF11 auxiliary switch is primarily used to provide auxiliary contacts to contactors or relays. The solid-state compatibility allows it to work reliably in digital systems, while the dual contact setup (1 NO + 1 NC) provides status signaling, interlocking, or control extension in electrical circuits.

• Contact Path:

  • 1 NO (solid-state compatible)

  • 1 NC (solid-state compatible)

• Connection Type: Screw terminals

• Mounting Location: Front

• Compatible Devices: Siemens 3RT2 contactors, 3RH2 contactor relays

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