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

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

MPN5SL6405-7
Active

Siemens SENTRON 5SL6405-7, 4-pole miniature circuit breaker, C-curve, 0.5 A rated current, 6 kA breaking capacity per EN 60898 / IEC 60947-2, 400 V AC, IP20.

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

Specifications

5SL6405-7 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityResidential buildings/infrastructure
5SL6405-7 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated current (In), AC0.5 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, DC (max.)72 V
Voltage typeAC
5SL6405-7 — Protection
ParameterValue
Tripping characteristic (trip curve)C
Rated breaking capacity (Icn), per EN 608986 kA
Rated breaking capacity, per IEC 60947-26 kA
Energy limitation class3
Overvoltage categoryIII
Pollution degree2
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SL6405-7 — 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
5SL6405-7 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of ambient temperature (derating)Periodically +55°C, max. 95% humidity

Product details

Four poles let it switch all three phases plus neutral in a 3-phase sub-distribution board, though note it does not switch the neutral internally (neutral conductor switching is not a function of this unit).

At 40 °C it derates to 0.48 A, at 45 °C to 0.46 A, and at 55 °C to 0.44 A. If your panel runs warm — common in a crowded enclosure or near a heat source — factor the derating into your load calculation.

The sealable design lets you lock the toggle in the ON or OFF position with a padlock — useful for lockout/tagout on a dedicated circuit.

Frequently asked questions

What is the breaking capacity of 5SL6405-7?

6 kA per both EN 60898 and IEC 60947-2 at 400 V AC. That is the standard breaking capacity for this series — adequate for most residential and light commercial sub-distribution boards.

What is the tripping characteristic and what loads is it for?

C-curve, meaning magnetic trip between 5 and 10 times the rated current (0.5 A). It is designed for moderate inrush loads such as small motors, lighting circuits, and control transformers where a B-curve would nuisance-trip but a D-curve is not needed.

What compliance documentation does Siemens provide for 5SL6405-7?

The part is halogen-free and silicon-free, which supports compliance with RoHS and REACH requirements. It carries IEC 60898 and IEC 60947-2 ratings. Specific declarations are available on request with the RFQ.

How do I get current pricing and availability for 5SL6405-7?

Submit an RFQ through this listing. We source the part to order and confirm availability and current pricing at quote time — no automated stock figures here, because the market moves daily on a standard catalog MCB like this.

MPN
5SL6405-7