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Siemens 5SY6306-7 — 3-Pole MCB (DIN Rail)

Siemens 5SY6306-7 SENTRON MCB, 3P C-Curve, 6kA/30kA

MPN5SY6306-7
Active

Siemens SENTRON 5SY6306-7, 3-pole miniature circuit breaker, C-curve, 6 kA (EN 60898-1) / 30 kA (IEC 60947-2), 400 V AC, 3 modular width units.

Siemens 5SY6306-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY6306-7 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY6306-7 — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-230 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree3
5SY6306-7 — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Voltage type (AC/DC)AC
Supply frequency range50/60 Hz
Power loss per pole at rated current (AC, hot)1.6 W
Mechanical service life (operating cycles, typ.)10 000
Neutral conductor switchingNo
Rated voltage (AC, single-phase)440 V
5SY6306-7 — 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
Accepts supplementary devicesYes
5SY6306-7 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturemax. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
Vibration resistance (IEC 60068-2-6)±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz

Product details

The 400 V AC rated voltage suits it for three-phase load centers and distribution boards.

Breaking capacity and what it means for panel fit

The 6 kA EN 60898-1 rating is the residential/commercial light-duty number. For a machine builder or panel shop specifying to UL 1077, the supplementary protector rating of 5 kA (at AC, per UL 1077 and CSA C22.2 No.235) is the relevant figure. That triple-standard coverage (EN 60898-1, IEC 60947-2, UL 1077) means the same part number satisfies different approval regimes without stocking multiple SKUs.

Physical fit and mounting

Current production — no phase-out or last-time-buy notice on record. This is a standard catalog line, not a special or end-of-life SKU.

Frequently asked questions

What compliance documentation does 5SY6306-7 carry?

The breaker is certified to IEC / EN 60898-1, IEC / EN 60947-2, and UL 1077 / CSA C22.2 No.235. It is halogen-free and silicon-free. Degree of pollution 3, overvoltage category III.

MPN
5SY6306-7