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Siemens 5SY5280-6CC — 2-Pole MCB (DIN Rail)

Siemens 5SY5280-6CC SENTRON MCB, 80A, 2-Pole, B-Curve, DC

MPN5SY5280-6CC

Siemens SENTRON 5SY5280-6CC, miniature circuit breaker, 2-pole, B characteristic, 80 A at 35 °C, 440 V DC, 10 kA DC breaking capacity.

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

Specifications

5SY5280-6CC — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY5280-6CC — Electrical
ParameterValue
Number of poles2
5SY5280-6CC — Protection
ParameterValue
Tripping characteristic classB
Overvoltage categoryIII
5SY5280-6CC — 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
5SY5280-6CC — Environmental
ParameterValue
Pollution degree3

Product details

At 35 °C ambient it carries 80 A; derate to 76 A at 40 °C, 73.92 A at 45 °C, 71.84 A at 50 °C, and 69.6 A at 55 °C — the thermal curve is published, so panel builders can size for elevated enclosure temperatures without guessing.

DC breaking capacity and installation

IP20 with connected conductors; the enclosure itself is finger-safe only when wired.

MPN
5SY5280-6CC