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Siemens 5SL6320-7MB — 3-Pole MCB (DIN Rail)

Siemens 5SL6320-7MB SENTRON MCB, 3P C 20A 6kA

MPN5SL6320-7MB
Active

Siemens SENTRON miniature circuit breaker, 3-pole, C-curve, 20 A, 400 V AC, 6 kA breaking capacity per EN 60898, 3 MW units, IP20.

Siemens 5SL6320-7MB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6320-7MB — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL6320-7MB — 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
5SL6320-7MB — 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)1.7 W
Mechanical service life (operating cycles, typ.)10 000
Rated voltage (AC, single-phase)250 V
5SL6320-7MB — 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
5SL6320-7MB — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

Siemens SENTRON 5SL6320-7MB — 3-pole C-curve MCB, 20 A, 6 kA

The C-curve (5–10× In) handles moderate inrush from lighting and small motor loads without nuisance tripping. Occupies 3 modular width units (54 mm) on a DIN rail, with a 76 mm depth and 70 mm installation depth — fits standard 18 mm pitch enclosures.

Comparison with 5SL4363-7

The 5SL4363-7 shares the same 3-pole, C-curve, 400 V AC rating and identical mechanical footprint (76 mm depth, 54 mm width, 90 mm height) but steps up to a 10 kA breaking capacity per both EN 60898 and IEC 60947-2. If your panel fault level exceeds 6 kA, the 5SL4363-7 is the direct upgrade without re-drilling the DIN rail or re-terminating the busbar.

Integration notes

Snap-on DIN rail mount, any orientation. Sealable cover is standard for tamper-proof installations.

Frequently asked questions

Will the 5SL6320-7MB drop into a panel designed for the 5SL4363-7?

Yes, both share the same 76 mm depth, 54 mm width, 90 mm height, and 3-pole DIN-rail footprint. The 5SL6320-7MB has a 6 kA breaking capacity versus the 5SL4363-7's 10 kA, so verify your fault level before substituting.

Where can I buy the 5SL6320-7MB?

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

MPN
5SL6320-7MB