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Siemens 3RH21312AF00 IEC Control Relay - Combination DIN-Rail & Surface-Mounted Relays
SiemensCombination DIN-Rail & Surface-Mounted Relays

Siemens 3RH21312AF00 IEC Control Relay

The SIEMENS IEC Control Relay (MPN 3RH21312AF00) is a combination DIN-rail and surface-mounted relay with a 3NO/1NC contact configuration rated at 10 A and a 120V AC coil voltage. 3G Electric interprets your demand…

SKU 3G-OTH-37351

Brand
Siemens
Item
3RH21312AF00 IEC Control Relay
Part Number
3RH21312AF00
Category
Combination DIN-Rail & Surface-Mounted Relays
Available to Order
Also known as:3RH21312AF00Siemens
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Technical Specifications

Siemens
Manufacturer Part Number
3RH21312AF00
Type
3NO/1NC, 10 A
AC Coil Volt
120V

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

Product Description

The SIEMENS IEC Control Relay (MPN 3RH21312AF00) is a combination DIN-rail and surface-mounted relay with a 3NO/1NC contact configuration rated at 10 A and a 120V AC coil voltage. 3G Electric interprets your demand for this Siemens control component, sourcing it across our 14 industrial departments and backing it with specialist depth in controls.

Frequently Asked Questions

What is the SIEMENS 3RH21312AF00 control relay used for?

The SIEMENS 3RH21312AF00 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 switching of loads up to 10 A is required. Its DIN-rail and surface mounting options provide flexibility for panel builders and maintenance engineers.

What are the specifications of the SIEMENS 3RH21312AF00 relay?

The SIEMENS 3RH21312AF00 is a combination DIN-rail and surface-mounted control relay with a 120V AC coil voltage. It features 3 normally open (NO) and 1 normally closed (NC) contacts, rated at 10 A. The relay is part of the Siemens 3RH2 series, designed for IEC industrial environments.

Where to buy the SIEMENS 3RH21312AF00 relay worldwide?

You can source the SIEMENS 3RH21312AF00 relay 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 times. 3G Electric supplies genuine Siemens components for industrial applications.

How to install the SIEMENS 3RH21312AF00 control relay?

To install the SIEMENS 3RH21312AF00, mount it on a DIN rail or surface using the integrated slots. Connect the 120V AC coil supply to the designated terminals, and wire the 3NO/1NC contacts according to your circuit diagram. Ensure the relay is de-energized during installation and follow standard electrical safety 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
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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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