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Siemens SIRIUS 3RH1140-1BB40

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3RH1140-1BB40

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The Siemens 3RH1140-1BB40 serves as an auxiliary contactor relay within the SIRIUS series. Designed for reliability, this component features four normally open (N.O.) contacts with a frame size of S00, allowing for solid performance within various control systems.

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Technical specifications for 3RH1140-1BB40

ManufacturerSiemens
Product TypeAuxiliary Contactor Relay
Product LineSIRIUS
Part Number3RH1140-1BB40
Weight0.56 lbs (0.26 kg)
Frame SizeS00
Number of Contact Configuration N.O4 N.O. Contacts
Number of Contact Configuration N.C0 N.C. Contacts
Rated Control Supply Voltage24 VDC
Coil Power Consumption3.2 W
Rated Impulse Withstand Voltage6 kV
Conventional Thermal Current10.0 A
Operational Current AC-15 (at 230 V)6.0 A
Operational Current DC-13 (at 24 V)10.0 A
IP RatingIP20
Electrical ConnectionScrew-type terminals
Mounting TypeDIN Rail Mount
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The Siemens 3RH1140-1BB40 is classified as an auxiliary contactor relay, part of the SIRIUS family of products. It is built to operate with a control supply voltage of 24 VDC. With a coil power consumption rated at 3.2 watts, this relay ensures efficient energy use during its operation.

This model offers four normally open (N.O.) contacts, while it includes no normally closed (N.C.) contacts, making it suitable for specific switching tasks. Its frame size is designated as S00, accompanying its compact design and ease of installation. The unit also boasts an impulse withstand voltage rating of 6 kV, facilitating reliable protection against voltage spikes.

Designed to handle up to 10.0 A of conventional thermal current, the 3RH1140-1BB40 can also manage operational currents of 6.0 A in AC-15 applications at 230 V and 10.0 A in DC-13 circuits at 24 V.

With an IP20 ingress protection rating, this relay is suitable for interior installations where exposure to dust might be minimal. The connection method employs screw-type terminals, ensuring straightforward wiring and dependable electrical connections. Installation on DIN rails is supported, which simplifies mounting in control panels and automation setups.

Overall, the Siemens 3RH1140-1BB40 provides essential functionality as an auxiliary contactor relay, serving in applications where reliable contact switching is necessary.