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Siemens 5SY8602-8 — 4-Pole MCB (DIN Rail)

Siemens 5SY8602-8 SENTRON MCB, D Curve, 4P, 70kA, 400V

MPN5SY8602-8
Active

Siemens SENTRON miniature circuit breaker, 5SY8602-8, 4-pole (3P+N), D tripping characteristic, 70 kA at 400 V AC, 76 mm depth, 72 mm width.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY8602-8 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY8602-8 — Ratings
ParameterValue
Number of poles4
Pole configuration3P+N
Rated current (In), AC400 V
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
Voltage typeAC
5SY8602-8 — Protection
ParameterValue
Tripping characteristic (trip curve)D
Rated breaking capacity, per IEC 60947-270 kA
Breaking capacity, AC (UL 1077 / CSA C22.2 No.235)5 kA
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingYes
Touch protectionYes
5SY8602-8 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Fastening / mounting methodQuick assembly system
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SY8602-8 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of ambient temperature (derating)max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
5SY8602-8 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

SENTRON 5SY8602-8 — D-curve MCB for high-inrush loads

The Siemens SENTRON 5SY8602-8 is a 4-pole miniature circuit breaker (3P+N) with a D tripping characteristic, rated for 400 V AC at 50/60 Hz. Rated current is 2 A at 45 °C, derated to 1.95 A at 50 °C and 1.9 A at 55 °C — factor this into the thermal coordination if the panel ambient runs warm.

Panel integration and environment

Snap-on DIN-rail mounting, any orientation — the breaker fits standard 35 mm rail. Rated for ambient -40 to 75 °C, with humidity limits: 95% RH up to 55 °C, 55% RH up to 70 °C, 35% RH up to 75 °C. Vibration tested to IEC 60068-2-6 (±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz).

Frequently asked questions

What is the breaking capacity of 5SY8602-8 at 400 V AC?

70 kA per IEC 60947-2 at 400 V AC. At DC per IEC 60947-2 it's 15 kA; under UL 1077 / CSA C22.2 No. 235 it's 5 kA at AC.

Where can I buy 5SY8602-8?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

Does 5SY8602-8 switch the neutral?

Yes, the neutral conductor is switched (3P+N configuration). The product function includes neutral conductor switching.

MPN
5SY8602-8