At 8 A rated current and 3 kA breaking capacity per EN 60898, it safely interrupts a fault up to 3 kA at 240 V AC — enough for most residential and light commercial sub-distribution boards, but check your prospective short-circuit current (PSCC) at the point of installation. The 55 mm installation depth and 2 width units (about 36 mm on a standard DIN rail) mean it slots into the same cutout as other SENTRON 5SQ breakers — no panel rework if you're swapping a same-series unit.
Siemens SENTRON 5SQ2570-0KA08 MCB, 2-pole 1P+N, C-curve 8A,
MPN5SQ2570-0KA08
Siemens SENTRON 5SQ series, miniature circuit breaker, 5SQ2570-0KA08, 2-pole 1P+N, C-curve, 8 A, 3 kA breaking capacity per EN 60898, 240 V AC, 50 Hz, IP20.
$39.01Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Number of poles | 2 |
| Parameter | Value |
|---|---|
| Tripping characteristic class | C |
| Rated value (EN 60898) | 3 kA |
| Overvoltage category | 3 |
| Parameter | Value |
|---|---|
| Installation depth | 55 mm |
| Parameter | Value |
|---|---|
| IP protection class | IP20 |
| Parameter | Value |
|---|---|
| Type of voltage | AC/DC |
| Energy limiting class | 3 |
| Number of width units | 2 |
| Number of poles (Note) | 1P+N |
| Circuit-breaker (Design) | 5SQ |
| Current (at AC) | 8 A |
| Supply voltage (at AC) | 240 V |
| Supply voltage frequency | 50 Hz |
| Product function (neutral conductor switching) | Yes |
Product details
Frequently asked questions
Where can I buy 5SQ2570-0KA08 and get a price?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.
What is the number of poles on 5SQ2570-0KA08?
It is a 2-pole device wired as 1P+N — one pole switches the line conductor, the other switches the neutral. The neutral pole is switched but not protected against overcurrent.
Will 5SQ2570-0KA08 drop into a panel specified for 5SQ2570-2YA04?
Both share the same 55 mm depth, 2 width units, and SENTRON 5SQ DIN-rail footprint, so the mechanical fit is identical. The electrical difference is the 5SQ2570-2YA04 is a 2-pole (2P) unit rated 4 A at 400 V AC, while this 5SQ2570-0KA08 is 1P+N rated 8 A at 240 V AC. Check your voltage and current requirements before swapping — the wiring scheme (switched neutral vs. solid neutral) and the voltage rating differ.
MPN
5SQ2570-0KA08