Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 125V DC Coil Volt, 3NO/1NC
The SIEMENS IEC Control Relay (MPN 3RH21311BG40) is a combination DIN-rail and surface-mounted relay with a 3NO/1NC contact configuration rated at 10 A and a 125V DC coil voltage. This relay is designed for…
SKU 3G-OTH-37292
Need installation or engineering help?
Ask a question
Product Description
The SIEMENS IEC Control Relay (MPN 3RH21311BG40) is a combination DIN-rail and surface-mounted relay with a 3NO/1NC contact configuration rated at 10 A and a 125V DC coil voltage. This relay is designed for industrial control applications requiring reliable switching in panel or enclosure installations.
Frequently Asked Questions
What is the SIEMENS 3RH21311BG40 control relay used for?
The SIEMENS 3RH21311BG40 is an IEC control relay used for switching and isolating electrical loads in industrial automation, motor control centers, and panel building. Its 3NO/1NC contact configuration and 10 A rating suit it for general-purpose control circuits in manufacturing, process, and utility applications.
What are the specifications of the SIEMENS 3RH21311BG40?
The SIEMENS 3RH21311BG40 is a combination DIN-rail and surface-mount relay with a 125 V DC coil voltage, 3 normally open and 1 normally closed contacts, and a 10 A rated current. It is part of the Siemens 3RH2 series and carries the manufacturer part number 3RH21311BG40.
Where to buy the SIEMENS 3RH21311BG40 worldwide?
You can source the SIEMENS 3RH21311BG40 worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine Siemens components to any country.
How to install the SIEMENS 3RH21311BG40 control relay?
Mount the SIEMENS 3RH21311BG40 on a DIN rail or surface using the integrated clip. Wire the coil to a 125 V DC supply and connect load circuits to the 3NO/1NC contacts rated at 10 A. Follow standard IEC installation practices and ensure the relay is de-energized during wiring.
Used in
Common applications for SiemensSiemens Products
3G Electric supplies Siemens combination din-rail & surface-mounted relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
