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Siemens 5SY4206-6 — 2-Pole MCB (DIN Rail)

Siemens 5SY4206-6 SENTRON MCB, 2P B-Curve, 10kA IEC 60898

MPN5SY4206-6
Active

Siemens SENTRON 5SY4206-6, 2-pole miniature circuit breaker, B tripping characteristic, 10 kA (IEC 60898-1) / 35 kA (IEC 60947-2), 400 V AC, 60 V DC, 2 MW units, IP20 with conductors.

$21.59Ref. price · indicative, final on quote
Siemens 5SY4206-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY4206-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY4206-6 — Electrical
ParameterValue
Number of poles2
5SY4206-6 — Protection
ParameterValue
Tripping characteristic classB
Overvoltage categoryIII
5SY4206-6 — 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
5SY4206-6 — Environmental
ParameterValue
Pollution degree3
5SY4206-6 — Specifications
ParameterValue
At AC rated value400 V
According to EN 60898 rated value10 kA
With single-phase operation at AC rated value440 V
Energy Limitation Class3

Product details

At 400 V AC / 60 V DC (rated), the 2-pole design switches both phase conductors simultaneously — no neutral switching here, so it's for line-to-line or double-pole single-phase circuits.

Breaking capacity and standard duality

The 35 kA figure applies per pole under 60947-2 and gives you real selectivity headroom in a distribution board fed by a 630 kVA transformer. The 5 kA UL 1077 / CSA C22.2 No.235 supplementary-protector rating means it qualifies as a recognized component for North American panels where the branch-circuit OCPD is already upstream.

Mounting position is unrestricted, so vertical or horizontal rail orientation works. Terminal tops and bottoms accept combined (screw + clamp) conductors — no special lug kit needed.

Rated for -40 °C to 75 °C ambient, with humidity derating: 95% RH up to 55 °C, 55% RH up to 70 °C, 35% RH up to 75 °C. Sealable (tamper-evident cover available). Overvoltage category III, energy limitation class 3. Complies with IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077 / CSA C22.2 No.235.

Frequently asked questions

Where can I buy 5SY4206-6 and get a price?

The 5SY4206-6 is sourced to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability confirmation.

What is the closest functional second-source for 5SY4206-6?

The 5SY7206-7CC is a similar 2-pole SENTRON MCB but with a C-curve characteristic (5–10× In magnetic release) versus the B-curve on the 5SY4206-6. The C-curve suits motor and transformer loads with higher inrush; the B-curve is better for resistive and general-purpose circuits. Both share the same 2-module footprint and DIN-rail mount, so panel rewiring isn't needed for a swap, but the trip curve difference matters for coordination.

What compliance documentation does Siemens provide for 5SY4206-6?

The 5SY4206-6 carries IEC/EN 60898-1 and IEC/EN 60947-2 ratings, plus UL 1077 and CSA C22.2 No.235 supplementary-protector recognition. It is halogen-free and silicon-free. Standard Siemens declarations of conformity and material compliance (RoHS, REACH) are available through the product documentation portal.

MPN
5SY4206-6