3RU2136-4EB0

The 3RU2136-4EB0 belongs to the SIRIUS 3RU2 thermal overload relay S2 size series, with a current setting range of 22...32A. It adopts a direct contactor mounting method and has 1 NO + 1 NC auxiliary contacts, making it suitable for medium-sized three-phase motor protection applications.

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Siemens SIRIUS 3RU2136-4EB0 Thermal Overload Relay 22-32A Product Image

Product Positioning

The 3RU2136-4EB0 is a Siemens SIRIUS 3RU2 series S2 size thermal overload relay with a current adjustment range of 22...32A. It can be directly mounted on a 3RT20 series contactor for overload and phase loss protection of three-phase motors.

Core Product Advantages and Features

Adjustable current 22...32A

Suitable for three-phase motors with a full-load current between 22 and 32 amps; the trip current can be set according to the actual load.

Contactor direct mounting design

It can be directly snapped onto the 3RT20 series S2 contactor, eliminating the need for additional wiring and saving installation space.

Class 10 Escape Feature

Compliant with IEC Class 10 overload trip curves, balancing startup and protection requirements.

1NO+1NC auxiliary contact

Provides a trip signal feedback contact, which can be linked to the control circuit to display the status.

project	Specification
Series Specifications	SIRIUS 3RU2 Second Generation Thermal Overload Relay
Applicable size	S2 (compatible with 3RT20 series contactors)
Break away from level	Class 10
Auxiliary contact	1NO+1NC
Rated operating voltage	690V AC
Protection level	IP20
Operating temperature	-40...+70°C
Current adjustment range	22...32 A
Installation method	Contactor mounting

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The 3RU2136-4EB1 belongs to the SIRIUS 3RU2 thermal overload relay S2 size series, with a current setting range of 22...32A. It is an independent installation type with 1 NO + 1 NC auxiliary contacts, suitable for stand-alone installation with terminal blocks.

3RU2136-4DB1

The 3RU2136-4DB1 belongs to the SIRIUS 3RU2 thermal overload relay S2 size series, with a current setting range of 18...25A. It is an independent installation type with 1 NO + 1 NC auxiliary contacts, suitable for stand-alone installation with terminal blocks.

3RU2136-4DB0

The 3RU2136-4DB0 belongs to the SIRIUS 3RU2 thermal overload relay S2 size series, with a current setting range of 18...25A. It adopts a direct contactor mounting method and has 1 NO + 1 NC auxiliary contacts, making it suitable for small and medium-sized three-phase motor protection applications.