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Siemens 3RH1911-1FA11 Auxiliary Switch Block - 1 NO + 1 NC

Siemens 3RH1911-1FA11 Auxiliary Switch Block, 1 NO + 1 NC

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ManufacturerSiemens

Part number3RH1911-1FA11

Contacts 1 NO + 1 NC

Terminal Type Screw

Size S00

Series SIRIUS 3RH11

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1 Normally Open Contact 1 Normally Closed Contact Screw Terminal Connections Size S00 For SIRIUS 3RH11 Contactors EN 50005 Compliant

Product description

The Siemens 3RH1911-1FA11 is an auxiliary switch block for the SIRIUS 3RH11 series, designed to be attached to auxiliary and motor contactors. This block configuration includes 1 normally open (NO) and 1 normally closed (NC) contact, using screw terminals for secure wiring. It is designed for Size S00 and is a phased-out product, with newer alternatives in the SIRIUS 3RH2 series.

This auxiliary switch block is commonly used to provide both a status signal (NO) and an interlocking or safety signal (NC) for a main contactor. It is integral to control systems requiring diverse feedback and logic operations in industrial automation, motor control, and building management.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RH1911-1FA11. We understand the importance of reliable components in industrial settings and provide quality surplus stock to meet your needs. Partner with Stanlo for your automation parts and benefit from our expertise.

Technical specifications

Contacts	1 NO + 1 NC
Terminal Type	Screw
Size	S00
Series	SIRIUS 3RH11
Application	Auxiliary and motor contactors
Status	Phased-out

Common applications

Motor Control

Automation Systems

Control Logic

Status Feedback

Interlocking Circuits

Safety Monitoring

Compatible systems

SIRIUS 3RH11 auxiliary contactors SIRIUS 3RH11 motor contactors

Also known as

Siemens 3RH11911FA11 3RH11911FA11 Siemens 1 NO 1 NC auxiliary contact

Replaces / compatible with

The Siemens 3RH1911-1FA11 is an auxiliary switch block for the SIRIUS 3RH11 series. Its preferred successor is the Siemens SIRIUS 3RH2911-1HA11.

Technical note

Expert tip

This 3RH1911-1FA11 auxiliary switch block is designed for SIRIUS 3RH11 contactors, offering 1 NO and 1 NC contacts for expanded control functions, and is a phased-out part with a successor in the 3RH2 series.

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Frequently asked questions

What types of contacts are included in the Siemens 3RH1911-1FA11 auxiliary switch block?

The Siemens 3RH1911-1FA11 auxiliary switch block includes one normally open (NO) contact and one normally closed (NC) contact. This dual configuration is useful for various control and signaling applications.