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Siemens 5SL6306-7BB — 3-Pole MCB (DIN Rail)

Siemens 5SL6306-7BB SENTRON MCB, 3P C-Curve 6A 6kA, 400V AC

MPN5SL6306-7BB

Siemens SENTRON 5SL6306-7BB, miniature circuit breaker, 3-pole C-curve, 6 A rated, 6 kA breaking capacity per IEC 60898 / IEC 60947-2, 400 V AC, 50/60 Hz, 3 MW units, IP20.

Siemens 5SL6306-7BB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6306-7BB — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL6306-7BB — Protection
ParameterValue
Tripping characteristic (curve)C
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL6306-7BB — Electrical
ParameterValue
Rated current (AC)6 A
Rated voltage (AC, multi-phase)440 V
5SL6306-7BB — 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
5SL6306-7BB — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

SENTRON 5SL6306-7BB — 3-pole C-curve MCB, 6 A, 6 kA

The Siemens 5SL6306-7BB is a SENTRON miniature circuit breaker, 3-pole, C-curve, rated 6 A at 400 V AC with a 6 kA breaking capacity per both EN 60898 and IEC 60947-2.

Thermal derating and ambient range

Rated 6 A at 30 °C ambient; at 40 °C the continuous current drops to 5.76 A, at 45 °C to 5.64 A, and at 55 °C to 5.37 A. For a panel builder stuffing a gland plate, the 54 mm width (3 MW) and 70 mm installation depth leave room for adjacent breakers and busbar routing — no overhang past the DIN rail.

Integration and approvals

IP20 with connected conductors — clean, dry indoor environments only, not washdown or outdoor. The sealable design allows lockout/tagout in panel applications where isolation verification is required.

Frequently asked questions

How do I get current pricing and availability for 5SL6306-7BB?

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

Will 5SL6306-7BB drop into a panel specified around 5SL4106-7CC without rewiring?

Both are 3-pole C-curve MCBs in the SENTRON family, but the 5SL4106-7CC carries a different breaking capacity and thermal rating. The 5SL6306-7BB is rated 6 kA per IEC/EN, 6 A, 400 V AC, 3 MW units — verify the existing panel's SCCR and load current before substitution; the footprint (54 mm width, 70 mm installation depth) is the same DIN-rail format.

What compliance documentation does this brand provide for 5SL6306-7BB?

Halogen-free and silicon-free construction supports RoHS and REACH compliance. The breaker is designed to EN 60898 and IEC 60947-2. For specific UL, CSA, or other regional certifications, request the manufacturer's declaration at quote time.

MPN
5SL6306-7BB