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Siemens 5SY6350-8CC — 3-Pole MCB (DIN Rail)

Siemens 5SY6350-8CC SENTRON MCB, 3P, D-curve, 50 A, 6 kA

MPN5SY6350-8CC

Siemens SENTRON miniature circuit breaker, 3-pole, D tripping characteristic, 50 A rated at 35 °C, 6 kA breaking capacity per EN 60898, 5 kA per UL 1077, IP20, 76 mm depth.

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

Specifications

5SY6350-8CC — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY6350-8CC — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per EN 608986 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Pollution degree3
5SY6350-8CC — Electrical
ParameterValue
Rated current (AC)50 A
Rated voltage (AC, multi-phase)440 V
5SY6350-8CC — Mechanical
ParameterValue
Modular width units3
Mounting positionany
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
Combined terminal, topYes
Combined terminal, bottomYes
Fastening methodQuick assembly system
SealableYes
5SY6350-8CC — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturemax. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C

Product details

Under UL 1077 / CSA C22.2 No.235 it carries a 5 kA interrupting rating, so for North American panels that's the number to design around. The 50 A rating derates with ambient temperature: 47 A at 40 °C, 45.45 A at 45 °C, 43.8 A at 50 °C, 42.1 A at 55 °C — useful if the breaker sits in a warm enclosure. The terminals accept combined top/bottom wiring, and the breaker is sealable for tamper-proof installations.

At 54 mm wide (3 MW), it fits a standard DIN-rail footprint. The 76 mm depth clears most enclosures, but check gland-plate clearance if the panel is shallow.

Compliance and approvals

Approved under EN 60898 (6 kA) and UL 1077 / CSA C22.2 No.235 (5 kA). The part is halogen-free and silicon-free — relevant for clean-room or sensitive electronics environments. Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz. Ambient humidity limits: 95% up to 55 °C, 55% up to 70 °C, 35% up to 75 °C.

MPN
5SY6350-8CC