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Siemens 5SQ2670-2YA06 — Miniature Circuit Breakers (MCB)

SENTRON 5SQ2670-2YA06 MCB, 4-Pole C 6A, 3kA, 400V AC

MPN5SQ2670-2YA06

SENTRON miniature circuit breaker, 5SQ2670-2YA06, 4-pole, C-curve 6 A, 3 kA breaking capacity at 400 V AC, neutral conductor switching.

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

5SQ2670-2YA06 — Ratings
ParameterValue
Overvoltage category3
5SQ2670-2YA06 — Other specifications
ParameterValue
Poles4
Type of voltageAC/DC
Installation depth55 mm
Protection class IPIP20
Energy limiting class3
Number of width units4
Number of poles (Note)4P
Circuit-breaker (Design)5SQ
Current (at AC)6 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

It switches the neutral conductor, making it a 3P+N unit for single-phase or three-phase circuits where the neutral needs overcurrent protection.

IP20 means finger-safe terminals but no moisture protection — panel-mount only, inside an enclosure rated for the environment. The 55 mm installation depth and 4 width units occupy standard DIN-rail space; plan for 72 mm of rail width (4 × 18 mm per pole) plus neutral pole.

Deployment context

The 4-pole form factor with neutral switching means one device covers a 3P+N circuit — no separate neutral link needed. Termination is IP20 finger-safe, so the panel builder can work live-side without additional shrouding, though de-energized work is standard practice.

Frequently asked questions

What is the breaking capacity of 5SQ2670-2YA06?

3 kA at 400 V AC per EN 60898. This is the rated short-circuit capacity for the final circuit. Verify the prospective fault current at the installation point does not exceed 3 kA.

What does the C-curve mean on this MCB?

The C-curve trips magnetically between 5× and 10× rated current (30–60 A for a 6 A unit). It tolerates moderate inrush from motors and transformers without nuisance tripping, making it the default choice for general-purpose final circuits in European panels.

Where can I buy 5SQ2670-2YA06?

This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers are published here.

Does 5SQ2670-2YA06 switch the neutral conductor?

Yes. It is a 4-pole device with neutral conductor switching, meaning all three phases and the neutral are opened and closed together. This provides full isolation on 3P+N circuits.

MPN
5SQ2670-2YA06