3RH1911-2FA40
The Siemens SIRIUS 3RH1911-2FA40 pre-amplified auxiliary contact module features 4 normally open auxiliary contacts, spring-loaded terminals, and is compatible with S00 size 3RH10/3RT10 series contactors and relays, offering a high number of contacts.
Product Positioning
The 3RH1911-2FA40 is a front-mounted auxiliary contact module from the Siemens SIRIUS series, offering up to four normally open contacts and spring-loaded terminals, making it suitable for control circuits that require a large number of auxiliary signals.
Core Product Advantages and Features
4 sets of normally open contacts
It provides four sets of normally open auxiliary contacts at a time to meet multiple signal feedback requirements.
Spring-type terminals
It adopts spring-type terminals for screwless quick wiring and is resistant to vibration and loosening.
Front snap-fit installation
It is snap-on mounted on the front of the S00 size contactor relay.
Suitable for small chassis
Designed specifically for the S00 small chassis, it is compact and space-saving.
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The Siemens SIRIUS 3RH1921-1CA01 pre-amplified auxiliary switch features one set of instantaneous normally closed auxiliary contacts, screw terminals, a mechanical life of up to 10 million cycles, and snap-fit installation on the front of the 3RT1 series contactor.
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3RH1911-1HA22
Siemens SIRIUS 3RH1911-1HA22 front auxiliary contact module, with 2 sets of normally open and 2 sets of normally closed auxiliary contacts, screw terminals, suitable for S00 size 3RH10/3RT10 series contactors and relays.
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3RH1911-1HA01
The Siemens SIRIUS 3RH1911-1HA01 front auxiliary contact module features one set of normally closed auxiliary contacts and a screw terminal design. It is suitable for S00 size 3RH10/3RT10 series contactors and motor starters.