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Siemens 3RH2911-2HA20 Front Mount Auxiliary Switch - 2 NO

Siemens 3RH2911-2HA20 Front Mount Auxiliary Switch

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ManufacturerSiemens

Part number3RH2911-2HA20

Contact Configuration 2 NO

Mounting Front

Terminal Type Spring-loaded

Compatibility Siemens 3RT2, 3RH2

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CAGE: 9NK75

Two Normally Open (NO) Contacts Spring-loaded Terminals Front Mountable SIRIUS Series Easy Integration

Product description

The Siemens 3RH2911-2HA20 is a front-mountable auxiliary switch that adds two normally open (NO) contacts to Siemens 3RT2 contactors and 3RH2 contactor relays. It features spring-loaded terminals for quick and reliable connections, simplifying the integration into existing control systems.

This auxiliary switch is ideal for applications requiring additional signals or control functions that are activated when the main contactor or relay operates. It is commonly used in motor control circuits, automation panels, and other industrial applications where extra NO contacts are beneficial.

Stanlo Automation, a veteran-owned company, offers the Siemens 3RH2911-2HA20 auxiliary switch. We are committed to providing quality surplus industrial automation parts, ensuring you receive reliable components for your needs.

Technical specifications

Contact Configuration	2 NO
Mounting	Front
Terminal Type	Spring-loaded
Compatibility	Siemens 3RT2, 3RH2
IP Rating	IP20

Common applications

Control Panels

Motor Control

Automation Systems

Signaling

Relay Control

PLC Input

Compatible systems

Siemens 3RT2 Siemens 3RH2

Also known as

Siemens SIRIUS 3RH29 Auxiliary Switch 3RH2911-2HA20 Contactor Auxiliary

Replaces / compatible with

This auxiliary switch adds two normally open contacts to Siemens 3RT2 contactors and 3RH2 contactor relays.

Technical note

Expert tip

The spring-loaded terminals of the 3RH2911-2HA20 provide a tool-free connection, ensuring a secure and fast installation for this auxiliary switch.

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Frequently asked questions

What is the purpose of the two NO contacts on the Siemens 3RH2911-2HA20?

The two normally open (NO) contacts on the Siemens 3RH2911-2HA20 close when the associated contactor or relay is energized. They are used to provide additional signals for control circuits, alarms, or indicators.