Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 120V AC Coil Volt, 2NO/2NC - Combination DIN-Rail & Surface-Mounted Relays
SiemensCombination DIN-Rail & Surface-Mounted Relays

Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 120V AC Coil Volt, 2NO/2NC

The SIEMENS IEC Control Relay (MPN 3RH21221AK60) is a combination DIN-rail and surface-mounted relay with a 2NO/2NC contact configuration rated at 10 A and a 120V AC coil voltage. 3G Electric interprets your demand…

SKU 3G-OTH-37237

Brand
Siemens
Item
Control Relay: DIN-Rail & Surface Relay Mounting, 120V AC Coil Volt, 2NO/2NC
Category
Combination DIN-Rail & Surface-Mounted Relays
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Siemens
Manufacturer Part Number
3RH21221AK60
Type
2NO/2NC, 10 A
AC Coil Volt
120V
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SIEMENS IEC Control Relay (MPN 3RH21221AK60) is a combination DIN-rail and surface-mounted relay with a 2NO/2NC contact configuration rated at 10 A and a 120V AC coil voltage. 3G Electric interprets your demand for this specific Siemens control component, sourcing it with full accountability across our 14 industrial departments.

Frequently Asked Questions

What is the SIEMENS 3RH21221AK60 control relay used for?

The SIEMENS 3RH21221AK60 is an IEC control relay used for switching and controlling industrial circuits. It is commonly applied in motor control centers, conveyor systems, and automation panels where reliable 120V AC coil operation and 10 A contact rating are required.

What are the specifications of the SIEMENS 3RH21221AK60 relay?

The SIEMENS 3RH21221AK60 is a combination DIN-rail and surface-mounted control relay with a 120V AC coil voltage. It features 2 normally open and 2 normally closed contacts rated at 10 A. The manufacturer part number is 3RH21221AK60.

Where to buy the SIEMENS 3RH21221AK60 relay worldwide?

You can source the SIEMENS 3RH21221AK60 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 3RH21221AK60 control relay?

Mount the SIEMENS 3RH21221AK60 relay on a DIN rail or surface using the integrated mounting slots. Connect the 120V AC coil supply to the designated terminals and wire the 2NO/2NC contacts per your control schematic. Ensure the load does not exceed 10 A.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 240V AC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221AN20). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 240V AC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221AN20). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 240V AC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221AP60). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 240V AC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221AP60). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V AC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221AB00). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V AC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221AB00). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BF40). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BF40). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BB40). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BB40). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 240V AC Coil Volt, 4NO, 10 A (MPN 3RH21401AP60). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 240V AC Coil Volt, 4NO, 10 A (MPN 3RH21401AP60). Key specifications — Brand: SIEMENS.

More from Siemens

View all Siemens parts
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 4NO, 10 A (MPN 3RH21401BF40). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 110V DC Coil Volt, 4NO, 10 A (MPN 3RH21401BF40). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21312FB40). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21312FB40). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 120V AC Coil Volt, 4NO/4NC, 10 A (MPN 3RH22444AK60). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 120V AC Coil Volt, 4NO/4NC, 10 A (MPN 3RH22444AK60). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 250V DC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311BM40). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 250V DC Coil Volt, 3NO/1NC, 10 A (MPN 3RH21311BM40). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 4NO, 10 A (MPN 3RH21402FB40). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 4NO, 10 A (MPN 3RH21402FB40). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 125V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BG40). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 125V DC Coil Volt, 2NO/2NC, 10 A (MPN 3RH21221BG40). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 4NO, 10 A (MPN 3RH21401BB40). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 24V DC Coil Volt, 4NO, 10 A (MPN 3RH21401BB40). Key specifications — Brand: SIEMENS.
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 120V AC Coil Volt, 4NO, 10 A (MPN 3RH21401AK60). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS IEC Control Relay: DIN-Rail & Surface Relay Mounting, 120V AC Coil Volt, 4NO, 10 A (MPN 3RH21401AK60). Key specifications — Brand: SIEMENS.