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Siemens 5SL4508-8 — 1-Pole MCB (DIN Rail)

Siemens 5SL4508-8 SENTRON MCB, 1P+N, D Curve, 8A, 10kA

MPN5SL4508-8
Active

Siemens SENTRON 5SL4508-8, miniature circuit breaker, 1P+N, D characteristic, 8 A rated, 10 kA breaking capacity, 230 V AC, 2 MW.

Siemens 5SL4508-8 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4508-8 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles2
Application suitabilityResidential buildings/infrastructure
5SL4508-8 — Electrical & Protection
ParameterValue
Tripping characteristic classD
Rated value (EN 60898)10 kA
Energy limitation class3
Overvoltage categoryIII
5SL4508-8 — Mounting & Connection
ParameterValue
Mounting positionany
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units2
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SL4508-8 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens 5SL4508-8 is a SENTRON miniature circuit breaker — 1P+N, D tripping curve, rated 8 A at 230 V AC with a 10 kA breaking capacity certified to both EN 60898 and IEC 60947-2. This is a 1P+N unit: the neutral pole is switched alongside the phase, which simplifies isolation and meets the requirements of many national wiring rules for final subcircuits. Rated voltage is 230 V AC single-phase, with a maximum of 250 V AC in single-phase operation.

Thermal derating and environmental limits

At 40 °C it derates to 7.39 A, at 45 °C to 7.04 A, and at 55 °C to 6.37 A. If your panel runs warm — near a transformer or in a crowded enclosure — factor that derate into the load calculation. Mounting position is unrestricted, which helps in tight enclosures where vertical or horizontal orientation is the only option.

Construction and compliance details

Sealable with a lead seal for tamper-proofing in metering or security applications.

Frequently asked questions

What is the 5SL4508-8 used for?

It is a miniature circuit breaker for residential buildings and infrastructure, protecting final subcircuits against overload and short circuit. The D curve suits loads with high inrush current such as small motors, transformers, and fluorescent lighting.

What is the breaking capacity of the 5SL4508-8?

10 kA per both EN 60898 and IEC 60947-2 at 230 V AC.

Where can I buy the 5SL4508-8?

Sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time.

What compliance documentation does Siemens provide for the 5SL4508-8?

The part carries IEC 60898 and IEC 60947-2 certification. The housing is halogen-free and silicon-free. Full RoHS/REACH declarations are available from Siemens on request.

MPN
5SL4508-8