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Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 5NO/3NC - Combination DIN-Rail & Surface-Mounted Relays
SiemensCombination DIN-Rail & Surface-Mounted Relays

Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 5NO/3NC

The SIEMENS IEC Control Relay is a combination DIN-rail and surface-mounted relay with a 5NO/3NC contact configuration rated at 10 A. It operates with a 24V DC coil voltage (MPN 3RH22531BB40). 3G Electric interprets…

SKU 3G-OTH-37495

Brand
Siemens
Item
Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 5NO/3NC
Category
Combination DIN-Rail & Surface-Mounted Relays
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Technical Specifications

Siemens
Manufacturer Part Number
3RH22531BB40
Type
5NO/3NC, 10 A
DC Coil Volt
24V
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Control Relay is a combination DIN-rail and surface-mounted relay with a 5NO/3NC contact configuration rated at 10 A. It operates with a 24V DC coil voltage (MPN 3RH22531BB40). 3G Electric interprets this demand, sources the genuine Siemens part, and supports your application across 14 industrial departments — with specialist depth in controls as an authorised distributor.

Frequently Asked Questions

What is the SIEMENS 3RH22531BB40 control relay used for?

The SIEMENS 3RH22531BB40 is a combination DIN-rail and surface-mounted IEC control relay used for switching and isolating circuits in industrial automation, motor control centers, and panel building. It handles up to 10 A with a 24 VDC coil and 5NO/3NC contact configuration.

What are the specifications of the SIEMENS 3RH22531BB40 control relay?

This SIEMENS control relay has a 24 VDC coil voltage, 5 normally open and 3 normally closed contacts, and a rated current of 10 A. It mounts on both DIN rail and surface, with part number 3RH22531BB40. It is designed for IEC industrial applications.

Where to buy the SIEMENS 3RH22531BB40 control relay worldwide?

You can source the SIEMENS 3RH22531BB40 control relay through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the SIEMENS 3RH22531BB40 control relay?

Mount the SIEMENS 3RH22531BB40 on a DIN rail or surface using the integrated clip. Connect the 24 VDC coil supply to the designated terminals, and wire the 5NO/3NC contacts per your circuit diagram. Ensure the relay is de-energized during installation and follow standard IEC wiring practices.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens 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.

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