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Siemens 5SY5220-6CC — 2-Pole MCB (DIN Rail)

Siemens 5SY5220-6CC SENTRON MCB, 440 V DC 10kA, 2-pole B, 20

MPN5SY5220-6CC

Siemens SENTRON 5SY5220-6CC, miniature circuit breaker, 440 V DC 10 kA, 2-pole, B characteristic, 20 A.

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

Specifications

5SY5220-6CC — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY5220-6CC — Electrical
ParameterValue
Number of poles2
5SY5220-6CC — Protection
ParameterValue
Tripping characteristic classB
Overvoltage categoryIII
5SY5220-6CC — 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
5SY5220-6CC — Environmental
ParameterValue
Pollution degree3

Product details

The Siemens SENTRON 5SY5220-6CC is a 2-pole DC miniature circuit breaker rated 440 V DC with a 10 kA breaking capacity per IEC 60947-2, a B tripping characteristic, and a 20 A current rating.

Rated 440 V DC with a maximum operating voltage of 500 V DC, the 5SY5220-6CC is built for DC circuits — common in solar combiner boxes, battery banks, and DC bus protection. The 2-pole configuration (2P) switches both lines in a DC circuit, and polarity must be observed per the terminal marking.

Panel integration

Depth is 76 mm (70 mm installation depth), width 36 mm (2 MW), height 90 mm. The quick-assembly system means the breaker clips onto the rail without tools.

Frequently asked questions

How do I get current pricing and availability for the 5SY5220-6CC?

Submit an RFQ through this page. Availability and current pricing are confirmed at quote time through our independent distribution network.

What is the 5SY5220-6CC's depth?

The 5SY5220-6CC has a depth of 76 mm (installation depth 70 mm).

What is the 5SY5220-6CC's width?

The 5SY5220-6CC has a width of 36 mm, which is 2 modular width units on a DIN rail.

Will the 5SY5220-6CC drop into a panel specified around the 5SY5250-7 without rewiring?

Yes — both share the same 76 mm depth, 36 mm width, 2-pole form factor, and quick-assembly DIN-rail mount. The 5SY5250-7 is a C-curve 50 A variant; the 5SY5220-6CC is B-curve 20 A. Footprint and wiring are identical, so no rewiring is needed for a like-for-like swap in the same panel cutout.

What compliance documentation does Siemens provide for the 5SY5220-6CC?

The 5SY5220-6CC is designed to IEC 60947-2 and carries a DC breaking capacity rating of 10 kA at 440 V DC per that standard. It is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, contact your Siemens representative or request the manufacturer's declaration of conformity with your RFQ.

MPN
5SY5220-6CC