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Siemens 5SL4420-7 — 4-Pole MCB (DIN Rail)

Siemens 5SL4420-7 SENTRON MCB, 4P C-curve 20A 10kA

MPN5SL4420-7
Active

Siemens SENTRON 5SL4420-7, 4-pole miniature circuit breaker, C-curve, 20 A rated at 400 V AC, 10 kA breaking capacity, IP20.

Siemens 5SL4420-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4420-7 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityResidential buildings/infrastructure
5SL4420-7 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated voltage, AC (multi-phase)440 V
5SL4420-7 — Protection
ParameterValue
Tripping characteristic (trip curve)C
Energy limitation class3
Overvoltage categoryIII
Pollution degree2
Degree of protection (IP)IP20, with connected conductors
5SL4420-7 — 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
5SL4420-7 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
5SL4420-7 — Performance
ParameterValue
Power loss per pole, AC (hot state, at In)2 W

Product details

Siemens 5SL4420-7 SENTRON 4-pole MCB — C-curve, 20 A, 10 kA

The Siemens 5SL4420-7 is a 4-pole miniature circuit breaker from the SENTRON family, rated 20 A at 400 V AC with a C-curve trip characteristic and a 10 kA breaking capacity certified to both EN 60898 and IEC 60947-2.

Full 20 A rating holds at 30 °C; at 40 °C derate to 18.94 A, at 45 °C to 18.4 A, and at 55 °C to 17.24 A — plan your panel ambient accordingly if you need the full rated current.

Rated for a -40 °C to +75 °C operating range, degree of pollution 2, overvoltage category III, and IP20 protection (with connected conductors). Halogen-free and silicon-free construction. Sealable design allows lockout/tagout in industrial panels. Energy limitation class 3 — fast arc extinction limits let-through energy downstream.

Frequently asked questions

What is the breaking capacity of the 5SL4420-7?

10 kA per both EN 60898 and IEC 60947-2, at 400 V AC.

Where can I buy the 5SL4420-7 and how is it quoted?

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

What is the temperature derating for the 5SL4420-7?

Rated 20 A at 30 °C, derated to 18.94 A at 40 °C, 18.4 A at 45 °C, and 17.24 A at 55 °C.

Will the 5SL4420-7 drop into a panel specified for the 5SL4363-7?

Both are 4-pole SENTRON MCBs on the same DIN-rail footprint, so mechanical fit is the same — but verify the rating and curve match your circuit: the 5SL4420-7 is 20 A C-curve, while the 5SL4363-7 carries a different amp rating and curve.

MPN
5SL4420-7