Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 24V AC Coil Volt, 2NO/2NC
The SIEMENS IEC Control Relay (MPN 3RH21221AB00) is a combination DIN-rail and surface-mounted relay with a 2NO/2NC contact configuration rated at 10 A and a 24V AC coil voltage. 3G Electric interprets this demand…
SKU 3G-OTH-37215
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The SIEMENS IEC Control Relay (MPN 3RH21221AB00) is a combination DIN-rail and surface-mounted relay with a 2NO/2NC contact configuration rated at 10 A and a 24V AC 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.
Frequently Asked Questions
What is the SIEMENS 3RH21221AB00 control relay used for?
The SIEMENS 3RH21221AB00 is an IEC control relay used for switching and isolating electrical loads in industrial automation, motor control centers, and panel building. Its 2NO/2NC contact configuration and 10 A rating suit general-purpose control circuits in manufacturing, HVAC, and process industries.
What are the specifications of the SIEMENS 3RH21221AB00 relay?
This SIEMENS relay has a 24 V AC coil voltage, 2 normally open and 2 normally closed contacts rated at 10 A. It mounts on DIN-rail or surface, with a compact design for control panels. The MPN is 3RH21221AB00, and it is part of the SIEMENS IEC control relay family.
Where to buy the SIEMENS 3RH21221AB00 relay worldwide?
3G Electric supplies the SIEMENS 3RH21221AB00 relay to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time; we source and deliver this relay globally.
How to install the SIEMENS 3RH21221AB00 relay on a DIN-rail?
To install, snap the relay onto a standard 35 mm DIN-rail until it locks. For surface mounting, use the integrated mounting holes. Wire the 24 V AC coil to terminals A1 and A2, and connect load circuits to the NO/NC contacts. Ensure the coil voltage matches your supply before energizing.
Used in
Common applications for SiemensSiemens 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.
