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Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 4NO/4NC - Combination DIN-Rail & Surface-Mounted Relays
SiemensCombination DIN-Rail & Surface-Mounted Relays

Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 4NO/4NC

SKU 3G-OTH-37458

Brand
Siemens
Item
Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 4NO/4NC
Category
Combination DIN-Rail & Surface-Mounted Relays
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Technical Specifications

Siemens
Manufacturer Part Number
3RH22441BB40
Type
4NO/4NC, 10 A
DC Coil Volt
24V
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the SIEMENS 3RH22441BB40 control relay used for?

The SIEMENS 3RH22441BB40 IEC control relay is used for switching and controlling industrial loads in automation, motor control, and process systems. Its 4NO/4NC contact configuration and 10 A rating suit panel building, conveyor systems, and HVAC controls across 14 industrial departments.

What are the specifications of the SIEMENS 3RH22441BB40 relay?

This SIEMENS relay has a 24 V DC coil voltage, 4 normally open and 4 normally closed contacts rated at 10 A. It mounts on DIN-rail or surface, with part number 3RH22441BB40. The compact design supports global industrial applications requiring reliable switching in control panels.

Where to buy the SIEMENS 3RH22441BB40 relay worldwide?

3G Electric supplies the SIEMENS 3RH22441BB40 relay worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote on this and other Siemens control components across our 14 departments.

How to install the SIEMENS 3RH22441BB40 relay on DIN-rail?

To install the SIEMENS 3RH22441BB40 relay, snap it onto a standard 35 mm DIN-rail until it locks. For surface mounting, use the provided screw holes. Wire the 24 V DC coil and 4NO/4NC contacts per your schematic, ensuring proper torque on terminals. Always de-energize before installation.

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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