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Siemens 5SY5204-7CC — 2-Pole MCB (DIN Rail)

Siemens 5SY5204-7CC SENTRON MCB, 2P, C-curve, 4 A, 440 V DC,

MPN5SY5204-7CC

Siemens SENTRON miniature circuit breaker, 2-pole, C characteristic, 4 A, 440 V DC, 10 kA breaking capacity per IEC 60947-2, 2 MW units wide.

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

Specifications

5SY5204-7CC — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY5204-7CC — Electrical
ParameterValue
Number of poles2
5SY5204-7CC — Protection
ParameterValue
Tripping characteristic classC
Overvoltage categoryIII
5SY5204-7CC — 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
5SY5204-7CC — Environmental
ParameterValue
Pollution degree3

Product details

DC-rated MCB for 440 V circuits

Two poles, C-curve trip characteristic, 4 A rated current.

The C-curve (tripping characteristic class C) means the magnetic trip activates at 5 to 10 times rated current — so this 4 A breaker trips magnetically between 20 A and 40 A. The 2-pole design (2P) switches both conductors but does not switch the neutral — polarity must be observed when wiring, as noted in the position of power supply cord specification. It's rated per IEC 60947-2, the standard for industrial circuit breakers — not the residential EN 60898. That matters when a panel spec calls for industrial-grade SCCR documentation. The 440 V DC rating covers most common DC bus voltages in motor drives and UPS systems.

Snaps onto standard 35 mm DIN rail via the quick assembly system — 2 modular width units (36 mm wide), 76 mm deep, 90 mm tall. Mounts in any position. Supplementary devices like auxiliary switches, shunt trips, or alarm contacts can be installed on the side — the product extension slot is available.

Frequently asked questions

What is the 5SY5204-7CC's breaking capacity at 440 V DC?

10 kA per IEC 60947-2. That's the industrial standard for DC circuit breakers, covering fault currents up to 10,000 amps on a 440 V DC bus.

Will the 5SY5204-7CC drop into a panel specified for 5SY5250-7?

Yes, the dimensions are identical — both are 2 MW units at 36 mm wide, 76 mm deep, 90 mm tall, with the same DIN-rail mounting. The key difference is the current rating: 4 A on this breaker versus the higher rating of the 5SY5250-7. If the panel was designed for the larger breaker, the 4 A unit fits the same footprint and busbar arrangement.

Where can I buy the 5SY5204-7CC and how is it quoted?

Sourced to order against an RFQ through independent industrial distribution. Submit an RFQ with your target quantity and delivery timeline; availability and current pricing are confirmed at quote time.

What compliance documentation does Siemens provide for this breaker?

The breaker carries IEC 60947-2 certification for DC breaking capacity. It is halogen-free and silicon-free. The IP20 rating with connected conductors is standard for enclosed panel installation. For specific RoHS, REACH, or UL documentation, request the manufacturer's compliance declaration with your RFQ.

MPN
5SY5204-7CC