Siemens Control Relay: DIN-Rail & Surface Relay Mounting, 230V AC Coil Volt, 4NO
SKU 3G-OTH-37427
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Frequently Asked Questions
What is the Siemens 3RH21401AP00 control relay used for?
The Siemens 3RH21401AP00 is an IEC control relay used for switching and controlling industrial loads in automation, motor control centers, and panel building. Its 4NO contacts and 10 A rating suit general-purpose switching in machinery, conveyors, and process equipment across 14 industrial departments.
What are the specifications of the Siemens 3RH21401AP00 relay?
The Siemens 3RH21401AP00 is a combination DIN-rail and surface-mount relay with 4 normally open contacts rated at 10 A. It operates on a 230 V AC coil voltage. The part number is 3RH21401AP00, and it is designed for IEC control circuits in industrial environments.
Where to buy Siemens 3RH21401AP00 relays worldwide?
3G Electric supplies the Siemens 3RH21401AP00 control relay to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine Siemens parts and support your procurement from inquiry to arrival.
How to install a Siemens 3RH21401AP00 control relay?
Mount the Siemens 3RH21401AP00 on a DIN rail or surface using the integrated clip. Wire the 230 V AC coil to terminals A1 and A2, and connect load circuits to the 4NO contact terminals. Ensure the coil voltage matches your supply and that contacts are rated for your load current.
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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.















