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Siemens SIRIUS 3RT20 contactor, grey plastic body, DIN rail mount, screw terminals

SIEMENS

SIEMENS 3RT20281AN20 Contactor 1NC/1NO 208V AC 3 Pole

SKU CH-5BAB-TWFV2

Three-pole IEC magnetic contactor rated 38 A inductive and 50 A resistive with 1NO/1NC auxiliary contacts and 208 V AC coil

  • IEC magnetic contactor rated for 208 V AC coil operation
  • 38 A inductive full-load current handles motor starting duties
  • 50 A resistive rating supports heating and lighting loads
  • Three-pole main circuit with 1 NO and 1 NC auxiliary contacts
  • DIN-rail or surface mounting fits S0 frame SIRIUS 3RT20 series

SIEMENS 3RT20281AN20 Contactor

The SIEMENS 3RT20281AN20 is a three-pole IEC magnetic contactor from the SIRIUS 3RT20 series. It operates on a 208 V AC coil and provides one normally open and one normally closed auxiliary contact. The unit is rated for 38 A inductive and 50 A resistive full-load current.

Industrial control panels and motor starters

This contactor suits panels that need a compact IEC device with screw terminals for DIN rail or surface mounting. It is not for applications that require a reversing contactor, a built-in enclosure or a different coil voltage than the specified 208 V AC.

208 V AC coil voltage

The coil voltage of 208 V AC is the single specification that determines whether this contactor matches the control circuit. Verify the supply voltage before ordering, as the device will not operate correctly on other voltages.

How it compares

Measured against everything we stock in Contactors, Relays & Motor Starters, at today’s prices. Recalculated every night.

Price $194.99
Pricier than about 90% of the 1,098 comparable items (median $61.99).

Specifications

Product
Brand nameSIEMENS

Questions about this item

Should I choose the 208 V AC coil version or the 220 V AC coil version for my control circuit?

The contactor operates on a 208 V AC coil; a 220 V AC coil is a separate variant. Select the version that matches your control voltage exactly.

What does the 38 A inductive full-load current mean for my motor circuit?

It rates the contactor for switching inductive loads such as motors up to 38 A. Resistive loads can go to 50 A.

How does the screw-terminal interface limit wire size and installation?

Screw terminals accept standard stranded or solid conductors for the S0 frame. Tighten to the specified torque for reliable contact.

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