3RH1911-1BA01
The Siemens SIRIUS 3RH1911-1BA01 auxiliary contact module features one set of normally closed contacts (1NC), with screw terminals connected from below. It conforms to EN 50005 standards and is suitable for S00 size contactor relays. It can be quickly snapped onto the side or front of the main unit to expand the number of circuits.
Product Positioning
The 3RH1911-1BA01 is a snap-on auxiliary contact module in the Siemens SIRIUS series S00 size, providing one set of normally closed contacts for expanding the control circuit of contactor relays and motor contactors.
Core Product Advantages and Features
1NC normally closed contact
It provides one set of normally closed auxiliary contacts, which can be used for interlocking circuits or status report signal acquisition.
EN 50005 bottom wiring
The wiring holes are located at the bottom of the module and conform to EN 50005 standard, which facilitates neat wiring arrangement.
Clip-on quick installation
Tool-free clips secure the device to the S00-sized body, making installation and removal quick and easy.
Screw terminal connection
It adopts screw terminal wiring, which ensures stable contact and is suitable for long-term use in industrial environments.
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The Siemens SIRIUS 3RH1911-1FA11 front auxiliary contact module features one normally open and one normally closed auxiliary contact, with screw terminal design, suitable for S00 size auxiliary contactors and motor contactors.
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3RH1911-1AA10
The Siemens SIRIUS 3RH1911-1AA10 auxiliary contact module features one normally open contact (1NO), a rated current of 10A, and top-mounted screw terminals. It conforms to EN 50005 standards, is suitable for S00 size bodies, and allows for quick-release expansion of the number of control circuits.
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3RH1140-1BG40
The Siemens SIRIUS 3RH1140-1BG40 contact relay features 4 normally open contacts (4NO), a coil voltage of DC 125V, and S00 size screw terminal wiring. It can be mounted on a DIN rail and is suitable for contactor auxiliary switching applications in DC control circuits.