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Siemens 5SL4304-6 — 3-Pole MCB (DIN Rail)

Siemens 5SL4304-6 SENTRON MCB, 3P B-Char 4A 10kA

MPN5SL4304-6
Active

Siemens SENTRON 5SL4304-6 miniature circuit breaker, 3-pole, B-curve, 4 A, 10 kA interrupting capacity per EN 60898 / IEC 60947-2, 400 V AC, 3 MW units.

Siemens 5SL4304-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4304-6 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL4304-6 — Protection
ParameterValue
Tripping characteristic (curve)B
Breaking capacity per EN 6089810 kA
Breaking capacity per IEC 60947-210 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL4304-6 — 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)1.6 W
Mechanical service life (operating cycles, typ.)10 000
5SL4304-6 — 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
5SL4304-6 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens 5SL4304-6 is a 3-pole miniature circuit breaker from the SENTRON 5SL series, rated 4 A with a B tripping characteristic. It interrupts fault currents up to 10 kA per EN 60898 and IEC 60947-2 at 400 V AC — that's the standard residential and light-commercial short-circuit rating, so it coordinates with typical upstream 10 kA-rated main breakers without needing a current-limiting device.

At 3 modular width units (54 mm wide) and 70 mm installation depth, it leaves room for auxiliary contacts or shunt trips on the right-side accessory slot — the product extension is supported per the spec.

Frequently asked questions

What is 5SL4304-6's interrupting rating?

It carries a 10 kA interrupting capacity per both EN 60898 and IEC 60947-2 at 400 V AC.

What is the difference between 5SL4304-6 and 5SL4363-7?

Both are 3-pole SENTRON MCBs with the same 10 kA rating and physical footprint. The 5SL4363-7 has a C-curve and a higher 63 A rating; the 5SL4304-6 is a B-curve at 4 A. They share the same 54 mm width and 76 mm depth, so the 5SL4363-7 drops into a panel wired for the 5SL4304-6 without rewiring — just swap the breaker.

Where can I buy 5SL4304-6?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
5SL4304-6