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Siemens 3RB2 Series

188 variants · Siemens

About the Siemens 3RB2 Series

The Siemens 3RB2 Series series groups 188 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common depth of 155 mm, height of 119 mm and temp operating max of 60 °C. Variants differ by trip class, so you can match the exact trip class your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current Siemens 3RB2 Series variants and discontinued ones from a single page.

Select a variant by

Trip class
CLASS 5E, 10E, 20E and 30E adjustable · CLASS 10E · CLASS 20E

Shared specifications

Depth
155 mm
Height
119 mm
Temp operating max
60 °C
Temp operating min
-25 °C
Width
120 mm

Variant comparison

Parameter3RB2153-4FC23RB2056-1FC2-ZX953RB2056-1FW23RB2056-1FX23RB2056-2FF23RB2056-2FW2
Trip classCLASS 5E, 10E, 20E and 30E adjustableCLASS 10ECLASS 10ECLASS 10ECLASS 20ECLASS 20E

Request a quote on any Siemens 3RB2 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

All variants