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Siemens 3RU21364EB0 overload relay, three-pole, S2 frame, auto/manual reset

SIEMENS

SIEMENS 3RU21364EB0 Overload Relay 22-32A Trip Class 10 3-Pole S2 Auto/Manual Reset

SKU CH-3VQC-DY7SY

Protects 3RT203 contactors with 22-32A trip range, Class 10 response, and auto or manual reset

  • Trip Class 10 ensures fast motor protection
  • Adjustable 22 to 32 A current range suits varied loads
  • Three-pole design matches standard contactor wiring
  • S2 frame fits SIEMENS 3RT203 series contactors
  • Auto and manual reset options simplify maintenance

Overload Relay 22-32A

The SIEMENS 3RU21364EB0 is a three-pole overload relay designed for motor protection in industrial control panels. It suits maintenance engineers and panel builders who need reliable overload detection for medium-current motor circuits. The device integrates directly with compatible contactor assemblies for streamlined installation.

Trip Class 10 Current Range

This relay monitors currents from 22 to 32 amperes with a Trip Class 10 response characteristic. It provides protection for standard motor starting profiles where tripping occurs within ten seconds at locked-rotor current. The fixed range means it cannot accommodate motors drawing less than 22A or more than 32A full-load current.

S2 Frame Auto/Manual Reset

The S2 frame size determines physical compatibility with 3RT203 series contactors. Users can select automatic or manual reset modes to match operational procedures after a trip event. No auxiliary contacts or communication modules are included in the base unit.

Highlights

  • Trip Class 10 ensures fast motor protection
  • Adjustable 22 to 32 A current range suits varied loads
  • Three-pole design matches standard contactor wiring
  • S2 frame fits SIEMENS 3RT203 series contactors
  • Auto and manual reset options simplify maintenance

Specifications

BrandSIEMENS

Questions about this item

Will the 3RU21364EB0 mount directly on my 3RT203 contactor without extra brackets?

Yes, the relay is designed for use with the 3RT203 contactor series and the S2 frame matches that range, so it fits directly onto the contactor.

How can I verify the 3RU21364EB0 trips correctly at 22 to 32A after wiring?

Set the dial within the 22 to 32A range, apply a test current above the setting, and confirm the relay opens the contactor within the trip class 10 time curve.

Does the box include the current-setting dial and mounting hardware for the 3RT203, or must I order them separately?

The relay ships complete with the built-in adjustment dial and integral mounting hardware for the 3RT203; no separate parts are required for basic installation.

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