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Grey rectangular IEC control relay with screw terminals and DIN rail clips

SIEMENS

SIEMENS 3RH21221AN20 Contactor 2NO/2NC 220VAC 10A

SKU CH-8H8C-D7VAT

IEC control relay with 2NO/2NC contacts, 10 A AC rating and 220 V AC coil for DIN-rail mounting

  • Reliable switching with 2NO/2NC contact configuration
  • Handles AC loads up to 10 A at 240 V
  • DC switching rated 1 A at 240 V and 3 A at 120 V
  • Compact S00 frame fits DIN rail and surface mounts
  • Low 5.7 VA coil consumption at 220 V AC

IEC Control Relay 2NO/2NC 220VAC

This SIEMENS IEC control relay provides 2 normally open and 2 normally closed contacts rated at 10 A. The coil operates on 220 V AC and the unit mounts on DIN rail or surface. It suits control panels, motor starters and automation circuits that need reliable switching.

For panel builders needing four contacts at 10 A

It fits applications where a compact S00 frame relay with screw terminals and IP20 rating is specified. Buyers who require higher current ratings, different coil voltages or alternative contact configurations should look at other relay families.

Screw terminals and DIN rail mounting simplify

The screw terminal connections allow secure conductor termination without special tools. DIN rail and surface mounting options give flexibility for panel layout. The 5.7 VA coil power consumption keeps control circuit loading low.

Highlights

  • Reliable switching with 2NO/2NC contact configuration
  • Handles AC loads up to 10 A at 240 V
  • DC switching rated 1 A at 240 V and 3 A at 120 V
  • Compact S00 frame fits DIN rail and surface mounts
  • Low 5.7 VA coil consumption at 220 V AC

Specifications

BrandSIEMENS

Questions about this item

What coil voltage must the control circuit supply for the 3RH21221AN20 to operate?

The relay coil is rated for 220 V AC, so the control circuit must provide that voltage.

Will the 3RH21221AN20 contacts switch the same loads as an older relay rated at 10 A / 240 V AC?

Yes, the AC contact rating is 10 A at 240 V, matching that legacy specification.

How can I confirm the 3RH21221AN20 is functioning after wiring it to the DIN rail?

Apply 220 V AC to the coil and verify the 2NO/2NC contacts change state; the relay draws 5.7 VA when energised.

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