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Siemens 3RH2911-1HA02 Front Mount Auxiliary Switch - 2 NC

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ManufacturerSiemens

Part number3RH2911-1HA02

Contacts 2 NC

Mounting Front

Terminals Screw

Compatibility 3RT2, 3RH2

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CAGE: 9NK75

2 Normally Closed (NC) Contacts Front Mounting Screw Terminals Snap-on Installation Compatible with 3RT2 and 3RH2

Product description

The Siemens 3RH2911-1HA02 is a front-mounting auxiliary switch block designed to add two Normally Closed (NC) contacts to Siemens SIRIUS 3RT2 contactors and 3RH2 contactor relays. It utilizes screw terminals for secure connections and features a snap-on design for easy front installation, enhancing the control capabilities of your existing equipment.

This auxiliary switch is essential for advanced control circuit configurations, offering two reliable NC contacts that open when the main contactor or relay is activated. It is commonly used for interlocking, signaling, and safety functions in diverse industrial automation setups. The 3RH2911-1HA02 is compatible with various sizes of 3RT2 contactors (S00 to S3) and 3RH2 contactor relays.

Stanlo Automation, a veteran-owned business, specializes in providing high-quality surplus industrial automation parts. We offer the Siemens 3RH2911-1HA02 auxiliary switch as part of our commitment to delivering reliable and cost-effective solutions. Partner with us for your automation needs and experience dependable service and quality components.

Technical specifications

Contacts	2 NC
Mounting	Front
Terminals	Screw
Compatibility	3RT2, 3RH2
Current Rating	10A AC-12, 6A AC-15

Common applications

Motor Control

Control Circuits

Interlocking

Safety Circuits

Automation Systems

Compatible systems

Siemens 3RT2 (S00-S3) Siemens 3RH2

Also known as

Siemens 3RH2911-1HA02 Aux Contact Siemens Contactor Relay Aux Switch

Replaces / compatible with

This auxiliary switch is designed for use with Siemens SIRIUS 3RT2 contactors and 3RH2 contactor relays.

Technical note

Expert tip

The snap-on mounting mechanism allows for tool-free installation of this auxiliary switch onto the front of compatible Siemens 3RT2 contactors and 3RH2 contactor relays.

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Frequently asked questions

What is the contact configuration of the Siemens 3RH2911-1HA02?

The Siemens 3RH2911-1HA02 auxiliary switch features two Normally Closed (NC) contacts. These contacts remain closed until the associated contactor or relay is energized, at which point they open.