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Siemens 5SQ2270-0KA05 — 2-Pole MCB (DIN Rail)

SENTRON 5SQ2270-0KA05 2-Pole C-Curve MCB, 5 A, 3 kA

MPN5SQ2270-0KA05

Siemens SENTRON 5SQ2270-0KA05, 2-pole miniature circuit breaker, C-curve, 5 A, 3 kA breaking capacity per EN 60898 at 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

5SQ2270-0KA05 — Identification
ParameterValue
Brand nameSENTRON
5SQ2270-0KA05 — Electrical
ParameterValue
Number of poles2
5SQ2270-0KA05 — Protection
ParameterValue
Tripping characteristic classC
Overvoltage category3
5SQ2270-0KA05 — Mechanical
ParameterValue
Installation depth55 mm
Protection degree (IP)IP20
5SQ2270-0KA05 — Other specifications
ParameterValue
Type of voltageAC/DC
Energy limiting class3
Number of width units2
Number of poles (Note)2P
Circuit-breaker (Design)5SQ
Current (at AC)5 A
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

SENTRON 5SQ2270-0KA05 — 2-pole C-curve MCB for 5 A branch circuits

The Siemens SENTRON 5SQ2270-0KA05 is a 2-pole miniature circuit breaker rated 5 A with a C tripping characteristic, designed for 400 V AC circuits and certified to EN 60898 with a 3 kA breaking capacity. The 2-pole design switches both live conductors simultaneously, with the neutral conductor switching function built in — useful for single-phase split or two-phase loads where you want full isolation. Rated for AC/DC voltage types, so it can be applied in DC control circuits as well, though the 3 kA breaking rating is specified under AC conditions per EN 60898.

Frequently asked questions

What is the breaking capacity of the 5SQ2270-0KA05?

3 kA rated breaking capacity per EN 60898 at 400 V AC.

What does the C-curve mean on this breaker?

The C tripping characteristic means the magnetic trip operates at 5–10 times the rated current (25–50 A for this 5 A unit), making it suitable for circuits with moderate inrush like small motors or lighting.

Where can I buy the 5SQ2270-0KA05 and how is it quoted?

Sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time; volume pricing is negotiable.

Does the 5SQ2270-0KA05 switch the neutral?

Yes, the neutral conductor switching function is built in — the 2-pole design switches both poles simultaneously.

MPN
5SQ2270-0KA05