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Siemens 5SQ2370-0KA25 — Miniature Circuit Breakers (MCB)

SENTRON 5SQ2370-0KA25 Circuit Breaker, 3-Pole C 25A, 3kA

MPN5SQ2370-0KA25

SENTRON 5SQ2370-0KA25, miniature circuit breaker, 3-pole, C tripping characteristic, 25 A, 3 kA at 400 V AC, 50 Hz, 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

5SQ2370-0KA25 — Ratings
ParameterValue
Overvoltage category3
5SQ2370-0KA25 — 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)25 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

The SENTRON 5SQ2370-0KA25 is a 3-pole miniature circuit breaker (MCB) with a C tripping characteristic, rated at 25 A and 3 kA breaking capacity per EN 60898 at 400 V AC, 50 Hz. Rated for AC/DC supply voltage and classified in overvoltage category 3, it handles fixed-installation transients typical of building and industrial final circuits. Energy limiting class 3 means it restricts let-through energy well, aiding downstream device protection during a fault.

Panel integration

Snap-on DIN rail mounting, 3 width units (approx. 54 mm), 55 mm installation depth. The neutral conductor is not switched through the breaker — neutral bar remains separate. Verify busbar compatibility for 3-pole spacing before assembly.

Frequently asked questions

What is the breaking capacity of 5SQ2370-0KA25?

The breaking capacity is 3 kA per EN 60898 at 400 V AC, 50 Hz.

What is the tripping characteristic of this breaker?

It has a C tripping characteristic, meaning it trips at 5 to 10 times rated current, suited for moderate inrush loads like small motors and lighting.

Where can I buy 5SQ2370-0KA25?

The part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Will 5SQ2370-0KA25 drop into a panel specified around 5SQ2370-2YA04?

Yes — both are 3-pole, C-curve, 3 kA, 400 V AC, 50 Hz, 55 mm depth, 3 width units, IP20, and share the same SENTRON 5SQ family footprint. The only difference is the current rating: 25 A vs 4 A for the 2YA04. Panel wiring and busbar spacing are identical.

MPN
5SQ2370-0KA25