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Siemens 3RH2911-1DA11 Lateral Auxiliary Switch - 1 NO + 1 NC

Siemens 3RH2911-1DA11 lateral auxiliary switch with 1 NO and 1 NC.

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ManufacturerSiemens

Part number3RH2911-1DA11

Mounting Lateral

Contacts 1 NO, 1 NC

Terminals Screw

For 3RT2.1 Contactors

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Lateral mounting 1 NO + 1 NC contacts Screw terminal connections High reliability For 3RT2.1 contactors

Product description

The Siemens 3RH2911-1DA11 is a lateral auxiliary switch designed for side mounting on Siemens 3RT2.1 contactors. This unit provides a combination of one normally open (NO) and one normally closed (NC) contact. The NO contact uses terminals 53/54, while the NC contact uses terminals 41/42, allowing for versatile control and signaling configurations. Connections are made via screw terminals.

This auxiliary switch is ideal for applications requiring simultaneous monitoring of different circuit states, such as interlocking mechanisms, status feedback, and control logic. It is commonly used in machine tools, packaging equipment, and process control systems where precise operational feedback is critical.

Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3RH2911-1DA11. We ensure that our customers receive reliable, cost-effective automation solutions to maintain their operational uptime.

Technical specifications

Mounting	Lateral
Contacts	1 NO, 1 NC
Terminals	Screw
For	3RT2.1 Contactors
Series	3RH29

Common applications

Interlocking circuits

Status feedback

Control logic

Machine safety

Industrial controls

Compatible systems

Siemens 3RT2.1 Contactors

Also known as

Siemens 3RH29111DA11 Siemens side mount auxiliary contact

Replaces / compatible with

This part is designed for use with Siemens 3RT2.1 contactors, providing additional control and signaling contacts.

Technical note

Expert tip

The lateral mounting of the 3RH2911-1DA11 requires sufficient space on the side of the compatible 3RT2.1 contactor for installation.

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Frequently asked questions

What are the terminal assignments for the contacts on the Siemens 3RH2911-1DA11?

The Siemens 3RH2911-1DA11 lateral auxiliary switch has terminals 53/54 for its normally open (NO) contact and terminals 41/42 for its normally closed (NC) contact.