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Siemens 5SQ2160-0KA20 — 1-Pole MCB (DIN Rail)

Siemens SENTRON 5SQ2160-0KA20 1-Pole B-Curve MCB, 20 A, 3 kA

MPN5SQ2160-0KA20

Siemens SENTRON 5SQ series, 5SQ2160-0KA20, 1-pole miniature circuit breaker, B tripping characteristic, 20 A rated current, 3 kA breaking capacity per EN 60898, 240 V AC, 50 Hz, IP20.

$6.64Ref. price · indicative, final on quote

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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SQ2160-0KA20 — Identification
Parameter	Value
Brand name	SENTRON
Number of poles	1

5SQ2160-0KA20 — Electrical & Protection
Parameter	Value
Tripping characteristic class	B
Rated value (EN 60898)	3 kA
Overvoltage category	3

5SQ2160-0KA20 — Mounting & Connection
Parameter	Value
Installation depth	55 mm

5SQ2160-0KA20 — Environmental
Parameter	Value
IP protection class	IP20

5SQ2160-0KA20 — Other specifications
Parameter	Value
Type of voltage	AC/DC
Energy limiting class	3
Number of width units	1
Number of poles (Note)	1P
Circuit-breaker (Design)	5SQ
Current (at AC)	20 A
Supply voltage (at AC)	240 V
Supply voltage frequency	50 Hz
Product function (neutral conductor switching)	No

Product details

The Siemens SENTRON 5SQ2160-0KA20 is a 1-pole miniature circuit breaker (MCB) with a B tripping characteristic, rated 20 A at 240 V AC, 50 Hz. It occupies a single width unit on the DIN rail, saving panel space compared to multi-pole variants.

Panel Fit & Integration

The 55 mm installation depth and single-width-unit footprint let it drop into any standard 35 mm DIN-rail enclosure without crowding adjacent devices. IP20 finger-safe terminals meet the basic touch-protection requirement for enclosed panels. Rated for AC/DC supply voltage, but the breaking capacity and tripping curve are defined at AC — verify DC performance if used in a DC circuit, as the arc extinction differs.

Frequently asked questions

Will the 5SQ2160-0KA20 drop into a panel specified for the 5SQ2360-0KA16?

No — the 5SQ2360-0KA16 is a 3-pole, 16 A, 400 V MCB. The 5SQ2160-0KA20 is a 1-pole, 20 A, 240 V device. They share the same 55 mm depth and SENTRON family, but the pole count, voltage, and current ratings differ; rewiring and possibly a different enclosure are required.