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Siemens 5SQ2270-2YA20 — 2-Pole MCB (DIN Rail)

SENTRON 5SQ2270-2YA20 MCB, 2-pole C 20 A, 3 kA

MPN5SQ2270-2YA20

SENTRON 5SQ2270-2YA20, miniature circuit breaker, 2-pole, C-curve 20 A, 3 kA 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

5SQ2270-2YA20 — Identification
ParameterValue
Brand nameSENTRON
5SQ2270-2YA20 — Electrical
ParameterValue
Number of poles2
5SQ2270-2YA20 — Protection
ParameterValue
Tripping characteristic classC
Overvoltage category3
5SQ2270-2YA20 — Mechanical
ParameterValue
Installation depth55 mm
Protection degree (IP)IP20
5SQ2270-2YA20 — 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)20 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

The C-curve (5-10x In) handles moderate inrush from motorized loads like pumps or small compressors without nuisance tripping.

At 2 width units (approx 36 mm) and 55 mm installation depth, it fits compactly into a SENTRON distribution board or any DIN-rail enclosure. IP20 finger-safe terminals suit dry indoor panels; no washdown rating here. Neutral conductor is switched internally (product function / neutral conductor switching = Yes), so this 2-pole unit breaks both phase and neutral. Overvoltage category 3 and energy limiting class 3 are standard for branch-circuit protection in fixed installations.

Frequently asked questions

What is the breaking capacity of 5SQ2270-2YA20?

3 kA rated value per EN 60898 at 400 V AC, suitable for standard final-distribution fault levels.

Will 5SQ2270-2YA20 drop into a panel specified around 5SQ2270-2YA04 without rewiring?

Yes — both are 2-pole, C-curve, 400 V AC, 3 kA MCBs with the same 55 mm depth and 2 width units. The only difference is the current rating: 20 A vs 4 A. Form, fit, and function are identical; no rewiring needed if the load current matches.

Where can I buy 5SQ2270-2YA20 and get current pricing?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote.

MPN
5SQ2270-2YA20