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Siemens 5SQ3670-1BA32 — Miniature Circuit Breakers (MCB)

SENTRON 5SQ3670-1BA32 MCB, 4P, C-Curve, 32 A, 3 kA

MPN5SQ3670-1BA32

SENTRON 5SQ, 4-pole MCB, C-curve, 32 A, 3 kA (EN 60898), 400 V AC, IP20, 55 mm depth.

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

5SQ3670-1BA32 — Ratings
ParameterValue
Overvoltage category3
5SQ3670-1BA32 — 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)32 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

The SENTRON 5SQ3670-1BA32 is a 4-pole miniature circuit breaker (3P+N) with a C-trip characteristic, rated 32 A at 400 V AC.

At 32 A it handles a 7.5 kW motor on 400 V three-phase with headroom for the magnetizing inrush. The 3P+N configuration switches the neutral as well as the three phases — the neutral pole is switched, not solid. That matters for TN-S or TT systems where you want guaranteed isolation on all four conductors during maintenance. The 4-pole body occupies 3 width units on the DIN rail, so it fits the same footprint as a standard 3-pole plus one spare module.

Panel integration and environment

IP20 rated, so it belongs inside a closed panel or enclosure, not in a washdown zone.

Frequently asked questions

What is the breaking capacity of 5SQ3670-1BA32?

3 kA per EN 60898 at 400 V AC. That covers standard commercial and light industrial final circuits; verify your prospective fault current stays at or below this level.

How do I get current pricing and availability for 5SQ3670-1BA32?

Submit an RFQ through this listing. The part is sourced to order through independent distribution; availability and current pricing are confirmed at quote time.

What does 3P+N mean on this breaker?

Three protected poles for the phases plus a switched neutral pole — all four conductors are isolated when the breaker is off. The neutral is not solid; it opens with the phases.

Will 5SQ3670-1BA32 drop into a panel specified around 5SQ2670-0KA15?

Both are 4-pole SENTRON 5SQ breakers with the same 55 mm depth, IP20, and DIN-rail mount. The 5SQ3670-1BA32 is rated 32 A versus 15 A for the 5SQ2670-0KA15, and the breaking capacity differs — verify your circuit's load and fault level before swapping.

MPN
5SQ3670-1BA32