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Siemens 5SQ2570-0KA04 — 1-Pole MCB (DIN Rail)

SENTRON 5SQ2570-0KA04 MCB, 2-pole C-curve 4A, 3kA

MPN5SQ2570-0KA04

SENTRON 5SQ2570-0KA04, 2-pole 1P+N miniature circuit breaker, C-curve 4 A, 3 kA per EN 60898, 240 V AC/DC, IP20.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SQ2570-0KA04 — Identification
ParameterValue
Brand nameSENTRON
Number of poles2
5SQ2570-0KA04 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Rated value (EN 60898)3 kA
Overvoltage category3
5SQ2570-0KA04 — Mounting & Connection
ParameterValue
Installation depth55 mm
5SQ2570-0KA04 — Environmental
ParameterValue
IP protection classIP20
5SQ2570-0KA04 — Other specifications
ParameterValue
Type of voltageAC/DC
Energy limiting class3
Number of width units2
Number of poles (Note)1P+N
Circuit-breaker (Design)5SQ
Current (at AC)4 A
Supply voltage (at AC)240 V
Supply voltage frequency50 Hz
Product function (neutral conductor switching)Yes

Product details

The SENTRON 5SQ2570-0KA04 is a 2-pole miniature circuit breaker in a 1P+N configuration — meaning it switches both the phase and the neutral, with overcurrent protection on the phase only. Rated 4 A at 240 V AC with a C-curve trip characteristic, it handles the moderate inrush of lighting banks, small transformers, and motorized valve actuators without nuisance tripping. The 3 kA breaking capacity per EN 60898 covers most residential and light commercial final circuits; for higher fault levels you'd step up to an industrial-class device.

Panel fit and integration

Occupies 2 width units on a DIN rail. Installation depth is 55 mm. IP20 protection.

Sourcing and lifecycle

Current production. Standard SENTRON catalog item. Sourced and quoted to order against an RFQ.

Frequently asked questions

What is the number of poles on 5SQ2570-0KA04?

It is a 2-pole device wired as 1P+N — one protected phase pole and a switched neutral pole.

What voltage type does 5SQ2570-0KA04 accept?

Rated for both AC and DC supply voltage, at 240 V AC / 50 Hz.

Will 5SQ2570-0KA04 drop into a panel specified for 5SQ2570-2YA04?

Both share the same 55 mm depth, 2 width units, and DIN-rail mount. The key difference is voltage: the -0KA04 is rated 240 V AC, while the -2YA04 is rated 400 V AC. If the panel is wired for 240 V single-phase with neutral, the -0KA04 fits without rewiring.

MPN
5SQ2570-0KA04