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3RH1140-2BB40

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Order genuine Siemens 3RH1140-2BB40 online for your automation system

The Siemens 3RH1140-2BB40 is a factory-grade contactor relay designed for reliable operation in industrial automation and control systems. Featuring a 24 V DC coil and four normally open (4NO) contacts, this compact Size S00 relay supports current loads up to 10 amps, making it ideal for switching loads within automation panels. Though now phased out, the 3RH1140-2BB40 is recognized for its robust build quality and precise switching performance that Siemens is known for. It is widely used in demanding electrical control environments, ensuring efficient and safe operation of machinery and process controls.

Key Features of Siemens 3RH1140-2BB40

  • Coil voltage: 24 V DC for seamless integration with DC control circuits
  • Four normally open (4NO) contacts supporting multi-circuit switching
  • Rated operational current up to 10 A for moderate load applications
  • Compact Size S00 for space-efficient panel installations
  • Spring-type terminals for secure and easy wiring connections
  • Durable industrial design compliant with IEC 60947 and VDE standards
  • Phased-out model with recommended successors in Siemens Sirius 3RH2 series

Explore Siemens 3RH1140-2BB40 specifications for detailed parameters

Parameter Specification
Coil Voltage 24 V DC
Contact Configuration 4 NO (Normally Open)
Rated Operational Current 10 A
Rated Operational Voltage up to 690 VAC / 220 VDC
Terminal Type Spring-type
Size S00 (Compact)

Applications / Use Case

This Siemens 3RH1140-2BB40 is commonly used in industrial automation environments where dependable relay switching is essential. Typical applications include factory control panels, machine automation setups, and production line systems requiring multiple contact outputs to manage complex electromechanical control circuits. Despite being a phased-out product, it remains a reliable choice for legacy systems in packaging and conveyor operations and other process control applications worldwide.

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3RH1140-2BB40

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