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Siemens 3RH2911-1LA20 Front Auxiliary Switch - 2 NO Contacts

Siemens 3RH2911-1LA20 front auxiliary switch with 2 NO contacts.

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ManufacturerSiemens

Part number3RH2911-1LA20

Type Auxiliary switch

Mounting Front

Contacts 2 NO

Cable Entry Top

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Front mounting 2 Normally Open (NO) contacts Screw terminals Top cable entry Designed for 3RT2/3RH2 series Expandable control functions

Product description

The Siemens 3RH2911-1LA20 is a front-mounted auxiliary switch designed for use with 3RT2 contactors and 3RH2 contactor relays. This unit features 2 Normally Open (NO) contacts, with current paths designated as 1 NO and 1 NO. It offers cable entry from the top and utilizes screw terminals for secure connections.

This auxiliary switch is crucial for expanding the control and signaling capabilities of contactors and relays in various industrial automation applications. It is commonly found in motor control, power distribution, and control panel systems across industries such as manufacturing, material handling, and building automation.

Source your Siemens 3RH2911-1LA20 auxiliary switch from Stanlo Automation, a veteran-owned distributor committed to providing reliable surplus industrial parts. We ensure quality and availability, helping you maintain operational efficiency and minimize downtime.

Technical specifications

Type	Auxiliary switch
Mounting	Front
Contacts	2 NO
Cable Entry	Top
Terminal Type	Screw
Series	3RH2
Compatibility	3RT2 contactors, 3RH2 contactor relays

Common applications

Motor control

Control panels

Power distribution

Automation systems

Manufacturing

Material handling

Compatible systems

Siemens 3RT2 contactors Siemens 3RH2 contactor relays

Also known as

Siemens 3RH29111LA20 3RH2911-1LA20 auxiliary contact

Replaces / compatible with

Compatible with Siemens 3RT2 contactors and 3RH2 contactor relays for expanded control functionality.

Technical note

Expert tip

Ensure proper torque is applied to screw terminals during installation to maintain a secure connection for the 3RH2911-1LA20.

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Frequently asked questions

What type of contacts does the Siemens 3RH2911-1LA20 auxiliary switch have?

The Siemens 3RH2911-1LA20 auxiliary switch is equipped with 2 Normally Open (NO) contacts. These contacts are ideal for signaling or initiating control circuits when a connected contactor or relay is energized.