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Siemens 3RH1911-1FB22 Auxiliary Switch Block - 2NO/2NC 1U

Siemens 3RH1911-1FB22 4-pole auxiliary switch block with 2 NO / 2 NC, 1U.

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ManufacturerSiemens

Part number3RH1911-1FB22

Contacts 2 NO + 2 NC (1U)

Terminal Type Screw

Size S00

Standard EN 50005

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2 Normally Open (NO) contacts 2 Normally Closed (NC) contacts '1U' specific contact arrangement Screw terminals for secure connections Designed for S00 size contactors

Product description

The Siemens 3RH1911-1FB22 is a 4-pole auxiliary switch block featuring 2 normally open (NO) and 2 normally closed (NC) contacts, with a specific '1U' configuration. It uses screw terminals for connection and is designed for size S00 contactors, complying with EN 50005 standards.

This auxiliary switch block is suited for a variety of applications within motor control and automation, providing flexible switching arrangements. It's commonly integrated into control panels and machinery requiring reliable auxiliary contact functions in manufacturing and processing industries.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, stocks the Siemens 3RH1911-1FB22. We are dedicated to providing hard-to-find components to keep your systems operational.

Technical specifications

Contacts	2 NO + 2 NC (1U)
Terminal Type	Screw
Size	S00
Standard	EN 50005
Poles	4

Common applications

Motor control

Control panels

Automation systems

Interlocking

Machine safety

Compatible systems

Siemens 3RH1 series contactors

Also known as

Siemens 3RH1911-1FB22 auxiliary contact Siemens S00 2NO 2NC auxiliary switch 3RH1911-1FB22 switch block 1U

Replaces / compatible with

This auxiliary switch block is phased out. The preferred successor is the SIRIUS 3RH2911-1FB22. It is designed for use with Siemens contactors.

Technical note

Expert tip

The 3RH1911-1FB22 is a discontinued auxiliary switch, with the 3RH2911-1FB22 being its direct successor within the SIRIUS 3RH2 series.

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Frequently asked questions

What does the '1U' designation mean for the Siemens 3RH1911-1FB22 auxiliary switch block?

The '1U' in the Siemens 3RH1911-1FB22 designation refers to a specific internal contact arrangement. It is part of the standard EN 50005 for auxiliary switches used with contactors.