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Siemens 5SL6306-6CC — 3-Pole MCB (DIN Rail)

Siemens 5SL6306-6CC SENTRON MCB, 3P B 6A 6kA 400V

MPN5SL6306-6CC
Active

Siemens SENTRON 5SL6306-6CC miniature circuit breaker, 3-pole, B-characteristic, 6 A rated, 6 kA breaking capacity per EN 60898, 400 V AC, 3 MW units.

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

Specifications

5SL6306-6CC — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL6306-6CC — Protection
ParameterValue
Tripping characteristic (curve)B
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL6306-6CC — Electrical
ParameterValue
Rated current (AC)6 A
Rated voltage (AC, multi-phase)440 V
5SL6306-6CC — 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
SealableYes
5SL6306-6CC — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

SENTRON 5SL6306-6CC — 3-pole B-curve MCB for branch-circuit protection

At 30 °C the breaker carries its full 6 A; at 40 °C derate to 5.66 A, at 50 °C to 5.29 A, and at 55 °C to 5.1 A — a thermal derating curve that matters when packing multiple units into a closed panel. Rated impulse withstand voltage corresponds to overvoltage category III, pollution degree 2 — the standard for fixed-installation distribution boards downstream of the main switchgear.

Integration — DIN-rail footprint and panel fit

At 54 mm wide (3 MW), 90 mm high, and 76 mm deep with an installation depth of 70 mm, the 5SL6306-6CC fits standard SENTRON distribution boards and enclosure cutouts. Sealable design allows tamper-proof locking of the toggle position for safety-isolation points.

Designed to EN 60898 for breaking capacity at 6 kA and to IEC 60947-2 for the overvoltage category III / pollution degree 2 rating. The product designation per EN 61346-2 and IEC 81346-2 is F (protective device). Vibration resistance tested to IEC 60068-2-6 at 50 m/s² from 25 to 150 Hz.

MPN
5SL6306-6CC