Skip to main content
Log in
Siemens 5SL4405-8 — 4-Pole MCB (DIN Rail)

Siemens 5SL4405-8 SENTRON MCB, 4P, D-curve, 0.5 A, 10 kA

MPN5SL4405-8
Active

Siemens SENTRON 5SL4 series, 5SL4405-8 miniature circuit breaker, 4-pole, D characteristic, 0.5 A, 10 kA breaking capacity.

Siemens 5SL4405-8 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4405-8 — Identification
ParameterValue
Type / order code5SL4
Brand nameSENTRON
Application suitabilityResidential buildings/infrastructure
5SL4405-8 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated current (In), AC0.5 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, DC (max.)60 V
Voltage typeAC
Rated frequency50 Hz
5SL4405-8 — Protection
ParameterValue
Tripping characteristic (trip curve)D
Rated breaking capacity (Icn), per EN 6089810 kA
Rated breaking capacity, per IEC 60947-210 kA
Overvoltage category3
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SL4405-8 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
SealableYes
5SL4405-8 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of ambient temperature (derating)+55 °C, max. 95% humidity
5SL4405-8 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

The Siemens 5SL4405-8 is a SENTRON 5SL4 miniature circuit breaker — 4-pole, D tripping characteristic, rated 0.5 A at 400 V AC.

The D-curve (tripping characteristic class D) means this breaker tolerates high inrush currents — typically 10–20× rated current for short durations — making it a natural fit for motor, transformer, or lighting ballast loads that draw a heavy startup surge. At 0.5 A it is sized for small auxiliary circuits, not main feeders.

Panel integration

At 72 mm wide (4 width units) and 76 mm deep, it fits a standard distribution board. Screw terminals accept solid or stranded conductors from 0.75 to 25 mm²; tighten to 2.5–3 N·m.

Frequently asked questions

Who supplies 5SL4405-8 and how is it quoted for volume purchases?

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

What is 5SL4405-8's listed depth?

The depth is 76 mm.

What conductor cross-section does 5SL4405-8 accept?

Solid and stranded conductors from 0.75 to 25 mm².

What compliance documentation does Siemens provide for 5SL4405-8?

The part carries EN 60898 and IEC 60947-2 ratings for breaking capacity; the product is halogen-free and silicon-free. Full RoHS/REACH declarations are available from Siemens upon request.

MPN
5SL4405-8