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Siemens 5SQ2670-0KA20 — Miniature Circuit Breakers (MCB)

Siemens SENTRON 5SQ2670-0KA20 MCB, 4-Pole C 20A, 3kA

MPN5SQ2670-0KA20

Siemens SENTRON 5SQ series, 5SQ2670-0KA20 miniature circuit breaker, 4-pole 3P+N, C-curve 20 A, 3 kA per EN 60898, 400 V AC, 55 mm depth, 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

5SQ2670-0KA20 — Ratings
ParameterValue
Overvoltage category3
5SQ2670-0KA20 — Other specifications
ParameterValue
Poles4
Type of voltageAC/DC
Installation depth55 mm
Protection class IPIP20
Energy limiting class3
Number of width units3
Number of poles (Note)3P+N
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)Yes

Product details

Siemens SENTRON 5SQ2670-0KA20 — 4-pole MCB, C-curve 20 A, 3 kA

The neutral conductor is switched (3P+N), which means the neutral pole opens and closes with the phases — required in some regional wiring codes and for certain IT system configurations where a switched neutral is specified. This is a panel-mount component, not a standalone enclosure breaker.

Panel fit and interchange

The 55 mm depth leaves clearance behind most standard enclosure backplates. The 3P+N form factor means it occupies the same footprint as a 4-pole breaker but with the neutral pole switched — verify that your panel's neutral bus bar arrangement expects a switched neutral before dropping this in as a direct replacement for a 4P (all poles protected) unit.

Frequently asked questions

What is the breaking capacity of 5SQ2670-0KA20?

3 kA per EN 60898 at 400 V AC. This is the rated short-circuit capacity for the C-curve 20 A variant.

Will 5SQ2670-0KA20 drop into a panel specified around 5SQ2670-0KA15?

Yes — same 4-pole 3P+N form factor, same 55 mm depth, same 3 width units on DIN rail. The only difference is the current rating: 20 A vs 15 A. No rewiring needed if the circuit is rated for 20 A.

Where can I buy 5SQ2670-0KA20 and get current pricing?

Sourced 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.

MPN
5SQ2670-0KA20