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Siemens 5SQ2370-0KA20 — Miniature Circuit Breakers (MCB)

SENTRON 5SQ2370-0KA20 MCB, 3-pole C-curve 20 A, 3 kA

MPN5SQ2370-0KA20

SENTRON 5SQ2370-0KA20, miniature circuit breaker, 3-pole, C characteristic, 20 A, 3 kA per EN 60898, 400 V AC, 50 Hz, IP20, 55 mm deep.

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

5SQ2370-0KA20 — Ratings
ParameterValue
Overvoltage category3
5SQ2370-0KA20 — Other specifications
ParameterValue
Poles3
Type of voltageAC/DC
Installation depth55 mm
Protection class IPIP20
Energy limiting class3
Number of width units3
Number of poles (Note)3P
Circuit-breaker (Design)5SQ
Current (at AC)20 A
Tripping characteristic classC
Acc. to EN 60898 / rated value3 kA
Supply voltage (at AC)400 V
Supply voltage frequency50 Hz
Product function (neutral conductor switching)No

Product details

Integrator note — 5SQ2370-0KA20

The SENTRON 5SQ2370-0KA20 is a 3-pole miniature circuit breaker with a C tripping characteristic, rated at 20 A and 400 V AC, 50 Hz. Occupies 3 width units, installs 55 mm deep. Rated for overvoltage category 3 and energy limiting class 3. IP20 protects against finger contact.

Panel fit and compliance

No neutral switching on this 3-pole unit — it breaks only the three phases. The C-curve and 3 kA rating are declared per EN 60898; the part also carries overvoltage category 3 and energy limiting class 3, which are the usual parameters for selectivity studies in a distribution board.

Frequently asked questions

Where can I buy 5SQ2370-0KA20 and get a price?

We source this part to order against an RFQ. Submit a request for quote and we will confirm current availability and pricing at that time — no stock count or price figure is published here because the market moves.

Will 5SQ2370-0KA20 drop into a panel specified around 5SQ2370-2YA04?

Yes, mechanically and electrically it fits the same DIN-rail slot, same 55 mm depth, same 3-pole wiring pattern. The only change is the ampacity — 20 A versus 4 A — so the upstream protection and cable sizing must be verified for the higher load.

MPN
5SQ2370-0KA20