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Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 2NO/2NC - Combination DIN-Rail & Surface-Mounted Relays
SiemensCombination DIN-Rail & Surface-Mounted Relays

Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 2NO/2NC

The SIEMENS IEC Control Relay (MPN 3RH21221BF40) is a combination DIN-rail and surface-mounted relay with a 2NO/2NC contact configuration rated at 10 A and a 110V DC coil voltage. 3G Electric interprets this demand…

SKU 3G-OTH-37256

Brand
Siemens
Item
Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 2NO/2NC
Category
Combination DIN-Rail & Surface-Mounted Relays
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Technical Specifications

Siemens
Manufacturer Part Number
3RH21221BF40
Type
2NO/2NC, 10 A
DC Coil Volt
110V
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Control Relay (MPN 3RH21221BF40) is a combination DIN-rail and surface-mounted relay with a 2NO/2NC contact configuration rated at 10 A and a 110V DC coil voltage. 3G Electric interprets this demand and delivers the genuine Siemens part, backed by specialist expertise across 14 industrial departments — including electrical controls — to ensure you get the right solution, not just a catalog listing.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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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