
3RA1245-4FB44-1AC2
Siemens
108 variants · Siemens
The Siemens Siemens 3RA12454 Series series groups 108 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 and width of 150 mm. Variants differ by depth, height and mounting, so you can match the exact depth your application requires using the selection guide below.
| Parameter | 3RA1245-4FB44-1AC2 | 3RA1245-4FB44-1AK6 | 3RA1245-4FB44-1AP6 | 3RA1245-4FB44-1AV6 | 3RA1245-4FB44-1BB4 | 3RA1245-4FB44-1BF4 |
|---|---|---|---|---|---|---|
| Depth | 207 mm | 207 mm | 207 mm | 207 mm | 220 mm | 220 mm |
| Height | 330 mm | 330 mm | 330 mm | 330 mm | 330 mm | 330 mm |
| Mounting | snap-on fastening on 35 mm standard rail | snap-on fastening on 35 mm DIN rail | snap-on fastening on 35 mm standard rail | snap-on fastening on 35 mm standard rail | snap-on fastening on 35 mm standard rail | snap-on fastening on 35 mm standard rail |
Request a quote on any Siemens 3RA12454 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

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