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Siemens 3RU5156-3NB2 — Overload Relays

3RU5156-3NB2 - Siemens

MPN3RU5156-3NB2

Thermal overload relay 170-205A size S6, class 10 for motor protection for single mounting main circuit: screw terminal AUX. circuit: screw terminal manual automatic reset

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RU5156-3NB2 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationThermal overload relay
3RU5156-3NB2 — Electrical (main circuit)
ParameterValue
Poles (main circuit)3
Rated operating frequency50 ... 60 Hz
Rated surge withstand voltage8 kV
Per pole0 W
3RU5156-3NB2 — Environmental
ParameterValue
Transport temperature-55 ... +80 °C
Relative humidity, operating0 ... 90 %
3RU5156-3NB2 — Other specifications
ParameterValue
Substance prohibitance09/03/2013
MPN
3RU5156-3NB2