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Siemens 5SL4201-6 — 2-Pole MCB (DIN Rail)

Siemens 5SL4201-6 SENTRON MCB, 2P B-Curve 1A 10kA

MPN5SL4201-6
Active

Siemens SENTRON 5SL4201-6, 2-pole miniature circuit breaker, B-curve, 1 A rated at 400 V AC, 10 kA breaking capacity per EN 60898, 2 MW units.

Siemens 5SL4201-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4201-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentResidential buildings/infrastructure
5SL4201-6 — Electrical
ParameterValue
Number of poles2
Supply voltage at AC rated value400 V
5SL4201-6 — Protection
ParameterValue
Tripping characteristic classB
Overvoltage categoryIII
5SL4201-6 — Mechanical
ParameterValue
Modular width units2
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Min.-40 °C
Max.75 °C
Protection degree (IP)IP20, with connected conductors
5SL4201-6 — Environmental
ParameterValue
Pollution degree2
At 30 °C rated value1 A
5SL4201-6 — Specifications
ParameterValue
At AC rated value1 A
According to EN 60898 rated value10 kA
Energy Limitation Class3

Product details

It's built for residential and infrastructure branch circuits where overcurrent protection is the job. The 2-module-width (36 mm) body snaps onto standard DIN rail — any mounting position works.

The SENTRON 5SL series is a broad family; the 5SL4201-6 is the 2-pole 1 A B-curve variant. If you're holding a BOM that calls out this exact order code, it's the active line item — no substitution needed.

Integration and ratings

IP20 with conductors connected, so it's panel-only, not field-exposed. Sealable terminals are standard, and it's halogen-free and silicon-free for environments sensitive to off-gassing. Derating matters: at 30 °C it's 1 A, at 40 °C it drops to 0.96 A, at 55 °C to 0.9 A. Mechanical life is 10 000 cycles typical. Installation depth is 70 mm (the can depth behind the rail).

Frequently asked questions

Where can I buy 5SL4201-6 and how is it quoted?

It's sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

What is the breaking capacity of 5SL4201-6?

10 kA per EN 60898 and also 10 kA per IEC 60947-2 — same figure, both standards.

What compliance documentation does Siemens provide for 5SL4201-6?

The part is halogen-free and silicon-free, and carries IP20 protection. Full RoHS, REACH, and applicable IEC/EN declarations are standard with the SENTRON series — available on request with the RFQ.

MPN
5SL4201-6