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Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 3NO/1NC - Combination DIN-Rail & Surface-Mounted Relays
SiemensCombination DIN-Rail & Surface-Mounted Relays

Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 3NO/1NC

The SIEMENS IEC Control Relay (MPN 3RH21311BF40) is a combination DIN-rail and surface-mounted relay with a 3NO/1NC contact configuration rated at 10 A and a 110V DC coil voltage. 3G Electric interprets this demand…

SKU 3G-OTH-37311

Brand
Siemens
Item
Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 3NO/1NC
Category
Combination DIN-Rail & Surface-Mounted Relays
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Siemens
Manufacturer Part Number
3RH21311BF40
Type
3NO/1NC, 10 A
DC Coil Volt
110V

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Control Relay (MPN 3RH21311BF40) is a combination DIN-rail and surface-mounted relay with a 3NO/1NC 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 part.

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

Frequently Asked Questions

What is the SIEMENS 3RH21311BF40 control relay used for?

The SIEMENS 3RH21311BF40 is an IEC control relay used for switching and controlling industrial circuits. It is commonly applied in automation panels, motor control centers, and machinery where reliable 110V DC coil operation and 10 A contact rating are required.

What are the specifications of the SIEMENS 3RH21311BF40 control relay?

The SIEMENS 3RH21311BF40 is a combination DIN-rail and surface-mounted relay with a 110V DC coil voltage, 3 normally open and 1 normally closed contacts, and a 10 A current rating. It is part of the Siemens 3RH2 series for industrial control applications.

Where to buy the SIEMENS 3RH21311BF40 control relay worldwide?

You can source the SIEMENS 3RH21311BF40 control relay through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the relay reaches your facility efficiently.

How to install the SIEMENS 3RH21311BF40 control relay?

To install the SIEMENS 3RH21311BF40, mount it on a DIN rail or surface using the integrated slots. Connect the 110V DC coil supply to the designated terminals and wire the 3NO/1NC contacts per your circuit diagram. Always follow Siemens' installation guidelines for safe operation.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 250V DC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311BM40)
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 250V DC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311BM40)
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311BB40)
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SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311BB40)
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 240V AC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311AN20)
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SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 240V AC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311AN20)
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V AC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311AB00)
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SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V AC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311AB00)
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BF40)
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BF40)
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 125V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BG40)
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SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 125V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BG40)

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