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Siemens 5SL6304-7MB — 3-Pole MCB (DIN Rail)

Siemens 5SL6304-7MB SENTRON MCB, 3P C 4A 6kA

MPN5SL6304-7MB
Active

Siemens SENTRON 5SL6304-7MB miniature circuit breaker, 3-pole, C-curve, 4 A, 6 kA per EN 60898 at 400 V AC, 3 MW units.

Siemens 5SL6304-7MB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6304-7MB — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL6304-7MB — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 608986 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL6304-7MB — 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)1.3 W
Mechanical service life (operating cycles, typ.)10 000
Rated voltage (AC, single-phase)250 V
5SL6304-7MB — 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
5SL6304-7MB — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens SENTRON 5SL6304-7MB is a 3-pole miniature circuit breaker rated 4 A with a C tripping characteristic and a 6 kA breaking capacity per EN 60898 at 400 V AC.

The physical footprint (76 mm depth, 54 mm width, 90 mm height) and all mounting dimensions are shared with the 5SL4363-7 sibling. The deciding difference is the breaking capacity: this unit carries 6 kA per EN 60898, while the 5SL4363-7 is rated 10 kA under both EN 60898 and IEC 60947-2.

Sealable design allows lockout-tagout compliance.

Frequently asked questions

Where can I buy 5SL6304-7MB and get a price?

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

What is the closest functional second-source to the 5SL6304-7MB?

The 5SL4363-7 is the closest sibling — identical physical footprint and C-curve, but rated for 10 kA breaking capacity under both EN 60898 and IEC 60947-2 versus the 6 kA of this unit.

Will the 5SL6304-7MB drop into a panel specified around the 5SL4363-7 without rewiring?

Yes, the two share the same 76 mm depth, 54 mm width, 90 mm height, and 3-pole DIN-rail footprint — a direct mechanical swap with no rewiring.

What compliance documentation does Siemens provide for the 5SL6304-7MB?

The part carries a CE marking per the Low Voltage Directive and is designed to EN 60898. Halogen-free and silicon-free construction is confirmed on the spec record.

MPN
5SL6304-7MB