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Siemens 5SL6405-7CC — 4-Pole MCB (DIN Rail)

Siemens 5SL6405-7CC SENTRON MCB, 4P C 0.5A 6kA

MPN5SL6405-7CC
Active

Siemens SENTRON 5SL6405-7CC miniature circuit breaker, 4-pole, C-curve, 0.5 A, 400 V AC, 6 kA per EN 60898, 4 MW units.

Siemens 5SL6405-7CC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6405-7CC — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityResidential buildings/infrastructure
5SL6405-7CC — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated voltage, AC (multi-phase)440 V
5SL6405-7CC — Protection
ParameterValue
Tripping characteristic (trip curve)C
Energy limitation class3
Overvoltage categoryIII
Pollution degree2
Degree of protection (IP)IP20, with connected conductors
5SL6405-7CC — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SL6405-7CC — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
5SL6405-7CC — Performance
ParameterValue
Power loss per pole, AC (hot state, at In)0.9 W

Product details

The Siemens SENTRON 5SL6405-7CC is a 4-pole miniature circuit breaker with a C-curve trip characteristic, rated 0.5 A at 400 V AC and a 6 kA breaking capacity per EN 60898.

The 0.5 A rating is unusually low for a 4-pole MCB — this breaker is sized for small-signal or control-circuit protection, not motor or general power loads. The C-curve (magnetic trip at 5–10× In) means it will hold brief inrush from small transformers or capacitive loads without nuisance tripping, but a 0.5 A C-curve is still a fast trip on a hard fault.

Panel integration

Mounting position is unrestricted.

Frequently asked questions

What is the 5SL6405-7CC used for?

It is a 4-pole miniature circuit breaker rated 0.5 A, C-curve, 400 V AC, 6 kA per EN 60898, used for branch-circuit overcurrent protection in residential and infrastructure distribution boards. The 0.5 A rating suits small-signal or control-circuit loads.

Will the 5SL6405-7CC drop into a panel specified for the 5SL4363-7?

Not without rewiring. The 5SL6405-7CC is a 4-pole breaker (72 mm wide, 4 MW units), while the 5SL4363-7 is a 3-pole breaker (54 mm wide, 3 MW units). The pole count and width differ, so the DIN-rail footprint and the number of phase connections are different. The depth (76 mm) and height (90 mm) are the same, so panel depth clearance is compatible.

Where can I buy the 5SL6405-7CC?

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

MPN
5SL6405-7CC