Skip to main content
Log in
Siemens 5SY5220-6 — 2-Pole MCB (DIN Rail)

Siemens 5SY5220-6 SENTRON MCB, 2-Pole B-Curve, 10 kA

MPN5SY5220-6
Active

Siemens SENTRON 5SY5220-6, 2-pole miniature circuit breaker, B tripping characteristic, 10 kA breaking capacity per IEC/EN 60898-2 and UL1077, AC/DC rated 400/440 V, 2 modular width units (36 mm).

Siemens 5SY5220-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY5220-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentuniversal current
5SY5220-6 — Electrical
ParameterValue
Number of poles2
5SY5220-6 — Protection
ParameterValue
Tripping characteristic classB
Overvoltage categoryIII
5SY5220-6 — Mechanical
ParameterValue
Modular width units2
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Min.-40 °C
Max.75 °C
Protection degree (IP)IP20, with connected conductors
5SY5220-6 — Environmental
ParameterValue
Pollution degree3
5SY5220-6 — Specifications
ParameterValue
At AC rated value400 V
According to EN 60898 rated value10 kA
With single-phase operation at AC rated value440 V
Energy Limitation Class3

Product details

What this 2-pole B-curve MCB does in your panel

It's listed under UL1077 as a supplementary protector, so it fits North American panels as a branch-circuit component, not a service-entrance breaker. Two modular width units (36 mm) snap onto DIN rail; the quick-assembly fastening and combined top/bottom terminals speed up panel wiring.

Environmental and compliance details

Operating temperature range from -40 °C to 75 °C, with derating above 55 °C per the humidity table (max 95% RH at 55 °C, tapering to 35% at 75 °C). Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Sealable with a lockable cover for tamper-proof installations.

Frequently asked questions

What is the breaking capacity of 5SY5220-6?

10 kA per IEC/EN 60898-2 on both AC and DC circuits, and 15 kA per IEC 60947-2 on DC. The AC rated voltage is 400 V (single- or multi-phase), DC rated voltage is 440 V with a maximum of 500 V.

Will 5SY5220-6 drop into a panel specified around 5SY5240-7 without rewiring?

Both are 2-pole SENTRON MCBs with the same 36 mm width (2 modular units) and identical depth/height footprint. The 5SY5240-7 carries a higher current rating and a C curve; the 5SY5220-6 is a B curve. If the panel's busbar and wiring are sized for the lower rating, it fits mechanically — but the tripping characteristic change (B vs C) must match the load's inrush profile. No rewiring needed if the busbar pitch and terminal positions are the same, which they are within the 5SY5 family.

Where can I buy 5SY5220-6?

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

MPN
5SY5220-6