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Siemens 5SY3220-6 — 2-Pole MCB (DIN Rail)

Siemens 5SY3220-6 SENTRON MCB, 2P B-Char 20A 4.5kA

MPN5SY3220-6

Siemens SENTRON 5SY3 series, miniature circuit breaker, 2-pole, B tripping characteristic, 20 A rated current at 400 V AC, 4.5 kA breaking capacity per EN 60898.

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

Specifications

5SY3220-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
5SY3220-6 — Electrical
ParameterValue
Number of poles2
5SY3220-6 — Protection
ParameterValue
Tripping characteristic classB
Overvoltage categoryIII
5SY3220-6 — Mechanical
ParameterValue
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Protection degree (IP)IP20, with connected conductors

Product details

The 4.5 kA breaking capacity per EN 60898 covers most residential and light commercial distribution boards; the 6 kA per IEC 60947-2 gives a bit more headroom if the panel is specified under that standard. At 20 A it feeds a standard lighting subcircuit or a small appliance group on a 2-pole (240 V split-phase or 400 V line-to-line) branch. Mounting is snap-on DIN rail (quick assembly system), 36 mm wide (2 width units), and the installation depth is 70 mm with an overall depth of 76 mm.

The breaker carries ratings under EN 60898 (4.5 kA) and IEC 60947-2 (6 kA AC, 15 kA DC), plus UL 1077 and CSA C22.2 No. 235 (5 kA). Ambient temperature range -25 to +55 °C, storage -40 to +75 °C.

Frequently asked questions

How do I get current pricing and availability for 5SY3220-6?

Submit an RFQ through this listing. We source this part through independent distribution and confirm current pricing and availability at quote time — no automated stock numbers here, just a real quote.

Will 5SY3220-6 drop into a panel that was specified around 5SY3132-6 without rewiring?

The 5SY3220-6 shares the same 36 mm width, 70 mm installation depth, and DIN-rail mounting as the 5SY3132-6, so it fits the same panel footprint. The terminal range (0.75–35 mm² solid/stranded) is identical. The difference is rating: the 5SY3220-6 is a 20 A B-curve, while the 5SY3132-6 is a 32 A C-curve — check the load current and inrush before swapping.

What compliance documentation does this brand provide for 5SY3220-6?

The SENTRON 5SY3 series is designed to EN 60898 and IEC 60947-2, with additional ratings under UL 1077 and CSA C22.2 No. 235. The housing is halogen-free and silicon-free. Standard manufacturer declarations for RoHS and REACH are available on request.

MPN
5SY3220-6