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Siemens 5SY8302-8 — 3-Pole MCB (DIN Rail)

Siemens 5SY8302-8 SENTRON MCB, 3P D-curve 2A, 70kA

MPN5SY8302-8
Active

Siemens SENTRON miniature circuit breaker, 5SY8302-8, 3-pole, D-tripping characteristic, 2 A rated current at 400 V AC, 70 kA breaking capacity per IEC 60947-2.

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

Specifications

5SY8302-8 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Suitability for operationMechanical engineering / industry
5SY8302-8 — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per IEC 60947-270 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Pollution degree3
5SY8302-8 — Electrical
ParameterValue
Rated current (AC)2 A
Rated voltage (AC, multi-phase)440 V
5SY8302-8 — 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
5SY8302-8 — 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

Ratings that matter for the panel builder

At DC per the same standard it's rated 15 kA. Temperature derating is published: full 2 A up to 45 °C, then 1.95 A at 50 °C, 1.9 A at 55 °C. The breaker is also halogen-free and silicon-free — relevant for sensitive environments like semiconductor fab or food processing where outgassing contaminants matter. The sealable feature (padlockable toggle) lets you lock out a circuit for LOTO compliance without an external lockout tagout device. Touch protection is integrated per the product feature listing.

MPN
5SY8302-8