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Siemens 3RH2911-2FA40 Front Auxiliary Switch - 4 NO

Siemens 3RH2911-2FA40 Front Auxiliary Switch (4 NO).

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ManufacturerSiemens

Part number3RH2911-2FA40

Type Auxiliary Switch

Mounting Front

Number of NO Contacts 4

Terminal Type Spring-loaded

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4 Normally Open Contacts Front Mounting Spring-loaded Terminals For 3RT2/3RH2 High Contact Density Quick Installation

Product description

The Siemens 3RH2911-2FA40 is a front-mounting auxiliary switch module designed to add 4 normally open (NO) contacts to Siemens 3RT2 contactors and 3RH2 contactor relays. It features spring-loaded terminals for quick and secure connections. The current path for this module is specified as 1 NO, 1 NO, 1 NO, 1 NO.

This auxiliary switch is ideal for expanding the number of NO contacts available for control and signaling functions. It is commonly used in applications requiring multiple parallel switching paths, additional feedback signals, or increased capacity for load switching within control circuits.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3RH2911-2FA40. We provide reliable components and efficient service to keep your automation systems running optimally.

Technical specifications

Type	Auxiliary Switch
Mounting	Front
Number of NO Contacts	4
Terminal Type	Spring-loaded
Compatible With	3RT2, 3RH2
Current Path	4 x 1 NO

Common applications

Control Panels

Automation Feedback

Parallel Switching

Status Signaling

Relay Logic

Motor Control Circuits

Load Switching

Compatible systems

Siemens SIRIUS 3RT2 Contactors Siemens SIRIUS 3RH2 Contactor Relays Industrial Control Panels

Also known as

Siemens 3RH2911-2FA40 Switch 3RH29112FA40 Siemens 4 NO Auxiliary Contact

Replaces / compatible with

This auxiliary switch module is designed to significantly increase the number of normally open contacts available for Siemens 3RT2 contactors and 3RH2 contactor relays. It is compatible with the full range of 3RT2 and 3RH2 devices.

Technical note

Expert tip

The spring-loaded terminals on the 3RH2911-2FA40 ensure a secure connection even in environments with vibration, making it suitable for demanding industrial applications.

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Frequently asked questions

What type of terminals does the Siemens 3RH2911-2FA40 use?

The Siemens 3RH2911-2FA40 utilizes spring-loaded terminals. This connection method allows for faster installation and maintenance compared to screw terminals, as wires are simply pushed into place.