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Siemens 5SQ2370-0KA04 — Miniature Circuit Breakers (MCB)

SENTRON 5SQ2370-0KA04 Circuit Breaker, 3-Pole C 4A, 3kA

MPN5SQ2370-0KA04

SENTRON 5SQ2370-0KA04, miniature circuit breaker, 3-pole, C characteristic, 4 A rated current, 3 kA breaking capacity per EN 60898, 400 V AC, 50 Hz, IP20.

$55.99Ref. price · indicative, final on quote
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

5SQ2370-0KA04 — Ratings
ParameterValue
Overvoltage category3
5SQ2370-0KA04 — 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)4 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 5SQ2370-0KA04 is a 3-pole miniature circuit breaker with a C tripping characteristic, rated at 4 A at 400 V AC and 50 Hz.

Fit and deployment

The 55 mm installation depth keeps it flush with standard distribution boards. IP20 rated — suitable for dry indoor enclosures; no washdown rating, so keep it behind a cabinet door in wet environments. Operates on AC or DC supply (type of voltage AC/DC), though the rated breaking capacity of 3 kA is specified per EN 60898 at AC. Overvoltage category 3 and energy limiting class 3 mean it handles transient overvoltages in fixed installations and limits let-through energy during faults. No neutral conductor switching — this is a 3-pole device for 3-phase circuits only.

Frequently asked questions

What is the breaking capacity of 5SQ2370-0KA04?

3 kA per EN 60898 at 400 V AC. This is a standard-breaking-capacity MCB suitable for final subcircuits where the prospective fault current does not exceed 3 kA.

Where can I buy 5SQ2370-0KA04 and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send the BOM line for a firm commercial offer.

Does 5SQ2370-0KA04 switch the neutral?

No. The product function explicitly states no neutral conductor switching. This is a 3-pole device for 3-phase circuits only; the neutral must be connected separately if required.

MPN
5SQ2370-0KA04