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Siemens 5SL6350-7BB — 3-Pole MCB (DIN Rail)

Siemens 5SL6350-7BB SENTRON MCB, 50 A, 3P, C-Curve, 6 kA

MPN5SL6350-7BB

Siemens SENTRON 5SL6350-7BB, miniature circuit breaker, 3-pole, C-characteristic, 50 A rated at 400 V AC, 6 kA breaking capacity per EN 60898 and IEC 60947-2.

Siemens 5SL6350-7BB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6350-7BB — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL6350-7BB — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-26 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL6350-7BB — 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)3 W
5SL6350-7BB — 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
Accepts supplementary devicesYes
5SL6350-7BB — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

Siemens 5SL6350-7BB — 50 A C-Curve MCB, 3-Pole, 6 kA

At 40 °C ambient the 50 A rating derates to 47.36 A; at 55 °C it drops to 43.09 A, so the thermal curve matters if the panel runs hot.

Physical Integration

Mounting position is any orientation. The sealable design allows panel-lockout tagging for lockout/tagout procedures. Halogen-free and silicon-free construction reduces off-gassing risk in enclosed distribution boards.

Electrical Ratings & Coordination

The DC rating is limited to 72 V maximum. The unit accepts auxiliary switches, shunt trips, and other add-on devices for remote signaling or emergency-off circuits.

Frequently asked questions

What is the breaking capacity of the 5SL6350-7BB?

The 5SL6350-7BB has a 6 kA breaking capacity under both EN 60898 and IEC 60947-2. This is sufficient for most residential and light-commercial distribution boards where the prospective short-circuit current at the panel does not exceed 6 kA.

What does the C-curve characteristic mean for the 5SL6350-7BB?

The C-curve (tripping between 5× and 10× the rated current) means the breaker tolerates moderate inrush currents — typical for small motors, transformers, or capacitor banks — without nuisance tripping, while still clearing hard faults within the 6 kA rating.

Where can I buy the 5SL6350-7BB and how is it quoted?

The 5SL6350-7BB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
5SL6350-7BB