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Siemens 5SL4208-6 — 2-Pole MCB (DIN Rail)

Siemens 5SL4208-6 SENTRON MCB, 2-Pole B 8A 10kA

MPN5SL4208-6
Active

Siemens SENTRON 5SL4 series miniature circuit breaker, 5SL4208-6, 2-pole, B-curve, 8 A, 400 V AC, 10 kA breaking capacity.

Siemens 5SL4208-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4208-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentResidential buildings/infrastructure
5SL4208-6 — Electrical
ParameterValue
Number of poles2
5SL4208-6 — Protection
ParameterValue
Tripping characteristic classB
Overvoltage category3
5SL4208-6 — Mechanical
ParameterValue
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Min.-40 °C
Max.75 °C
Protection degree (IP)IP20, with connected conductors
5SL4208-6 — Environmental
ParameterValue
Pollution degree2

Product details

The Siemens 5SL4208-6 is a SENTRON 5SL4 miniature circuit breaker — 2-pole, B-curve, rated 8 A at 400 V AC with a 10 kA breaking capacity certified to both EN 60898 and IEC 60947-2.

Snaps onto standard DIN rail — 36 mm wide (2 width units), 90 mm tall, 76 mm deep with a 70 mm installation depth. Mounting position is unrestricted, which helps when the panel layout is tight.

Halogen-free and silicon-free construction, which matters for panels in environments sensitive to corrosive off-gassing (data centers, medical facilities). Mechanical endurance is 10,000 switching cycles typical.

Frequently asked questions

Where can I buy the 5SL4208-6?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position.

What is the breaking capacity of the 5SL4208-6?

Rated 10 kA per both EN 60898 and IEC 60947-2 at 400 V AC. That 10 kA SCCR means it safely interrupts fault currents up to that level without upstream coordination issues in a residential or light commercial distribution board.

What does the B-curve tripping characteristic mean for this MCB?

The B characteristic trips at 3 to 5 times the rated current (24–40 A for this 8 A unit). It's intended for resistive and general-purpose loads with low inrush — lighting, socket circuits, control transformers — not motor starting or high-inductive loads that would need a C or D curve.

Does the 5SL4208-6 switch the neutral?

No, this is a 2-pole breaker that switches both phases but does not switch the neutral conductor. For applications requiring neutral switching, a 4-pole variant would be needed.

MPN
5SL4208-6