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Siemens 5SY6308-8CC — 3-Pole MCB (DIN Rail)

Siemens 5SY6308-8CC SENTRON MCB, 3P D-curve 8A, 6kA

MPN5SY6308-8CC

Siemens SENTRON 5SY6308-8CC miniature circuit breaker, 3-pole, D characteristic, 8 A AC rated, 6 kA (EN 60898), 5 kA (UL 1077).

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

Specifications

5SY6308-8CC — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY6308-8CC — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per EN 608986 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Pollution degree3
5SY6308-8CC — Electrical
ParameterValue
Rated current (AC)8 A
Rated voltage (AC, multi-phase)440 V
5SY6308-8CC — 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
5SY6308-8CC — 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

At 8 A, it handles sustained loads up to that figure; above that, the magnetic trip reacts fast. Breaking capacity is 6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No.235.

The 8 A rating holds at 35 °C ambient. At 40 °C it derates to 7.35 A, at 45 °C to 7 A, at 50 °C to 6.63 A, and at 55 °C to 6.25 A. If the panel runs hot, size up one frame to keep the trip point above your load current. Mounts via quick assembly system (snap-on DIN rail) in any position.

Halogen-free and silicon-free construction. Sealable for tamper-proof installations. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. The product designation per IEC 81346-2 and DIN EN 61346-2 is F.

Frequently asked questions

What is the breaking capacity of the 5SY6308-8CC?

6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No.235.

Where can I buy the 5SY6308-8CC?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

What compliance documentation does Siemens provide for the 5SY6308-8CC?

The breaker carries EN 60898 and UL 1077 / CSA C22.2 No.235 ratings; it is halogen-free and silicon-free. Specific RoHS/REACH declarations are available from the manufacturer upon request.

MPN
5SY6308-8CC