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Siemens 3RA2 Series

2021 variants · Siemens

About the Siemens 3RA2 Series

The Siemens 3RA2 Series series groups 2021 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common trip class of CLASS 10. Variants differ by depth, height and width, so you can match the exact depth your application requires using the selection guide below.

Select a variant by

Depth
107 mm · 120 mm · 130 mm · 165 mm
Height
193 mm · 260 mm · 265 mm
Width
45 mm · 90 mm
Mounting
snap-on fastening on 35 mm DIN rail · snap-on fastening on 35 mm standard rail

Shared specifications

Trip class
CLASS 10

Variant comparison

Parameter3RA2220-4DB27-0AP63RA2220-4EB27-0AP63RA2220-4EB27-0AK63RA2120-4BA27-0FB43RA2220-0GB23-0AP63RA2220-0GB23-0BB4
Depth120 mm120 mm120 mm107 mm120 mm130 mm
Height265 mm265 mm265 mm193 mm265 mm265 mm
Width90 mm90 mm90 mm45 mm90 mm90 mm
Mountingsnap-on fastening on 35 mm DIN railsnap-on fastening on 35 mm DIN railsnap-on fastening on 35 mm standard railsnap-on fastening on 35 mm standard rail

Request a quote on any Siemens 3RA2 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

All variants