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Siemens 5SL3306-7MB — 3-Pole MCB (DIN Rail)

Siemens 5SL3306-7MB SENTRON MCB, 3P C 6A 400V 4.5kA

MPN5SL3306-7MB
Active

Siemens SENTRON 5SL3306-7MB, miniature circuit breaker, 3-pole, C tripping characteristic, 6 A rated current, 400 V AC, 4.5 kA breaking capacity per EN 60898, 3 MW units.

Siemens 5SL3306-7MB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL3306-7MB — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL3306-7MB — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 608984.5 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL3306-7MB — 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)0.86 W
Mechanical service life (operating cycles, typ.)10 000
Rated voltage (AC, single-phase)250 V
5SL3306-7MB — 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
5SL3306-7MB — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens SENTRON 5SL3306-7MB is a 3-pole miniature circuit breaker rated 6 A with a C tripping curve, designed for 400 V AC multi-phase circuits and a 4.5 kA breaking capacity per EN 60898.

For installations requiring higher SCCR at the branch level, the 5SL4363-7 sibling carries a 10 kA rating under both EN 60898 and IEC 60947-2, though it draws 5 W per pole versus 0.86 W on this part.

Panel integration

Terminal design accepts copper conductors typical of distribution boards; the sealable option allows locking the toggle in the OFF position for lockout/tagout compliance.

Frequently asked questions

Where can I buy 5SL3306-7MB and what is the price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer.

Will 5SL3306-7MB drop into a panel specified for 5SL4363-7 without rewiring?

Yes, both share the same 54 mm width (3 MW), 76 mm depth, 90 mm height, and 70 mm installation depth, so the mechanical fit and DIN-rail footprint are identical. The difference is breaking capacity: 5SL3306-7MB is rated 4.5 kA per EN 60898, while 5SL4363-7 is rated 10 kA under both EN 60898 and IEC 60947-2. If the panel design requires 10 kA branch protection, the 5SL3306-7MB is not a direct electrical substitute.

What compliance documentation does Siemens provide for 5SL3306-7MB?

The product is halogen-free and silicon-free, indicating RoHS and REACH compliance for restricted substances. As an active SENTRON series MCB, it carries CE marking for the European market and is designed to meet EN 60898 and IEC 60947-2 standards. Full declarations of conformity and material declarations are available from Siemens documentation portals.

MPN
5SL3306-7MB