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Siemens 5SY6602-8 — 4-Pole MCB (DIN Rail)

Siemens 5SY6602-8 SENTRON MCB, 4P D 2A 400V 6kA EN 60898

MPN5SY6602-8

Siemens SENTRON 5SY6 series, miniature circuit breaker, 4-pole D-curve, 2 A, 400 V AC, 6 kA (EN 60898), 30 kA (IEC 60947-2), 72 mm wide, 76 mm deep.

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

Specifications

5SY6602-8 — Identification
ParameterValue
Type / order code5SY6
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY6602-8 — Ratings
ParameterValue
Number of poles4
Pole configuration3P+N
Rated current (In), AC400 V
Rated current (In), AC2 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
Rated voltage, DC (max.)72 V
Voltage typeAC
Rated frequency50/60 Hz
5SY6602-8 — Protection
ParameterValue
Tripping characteristic (trip curve)D
Rated breaking capacity (Icn), per EN 608986 kA
Rated breaking capacity, per IEC 60947-230 kA
Breaking capacity, AC (UL 1077 / CSA C22.2 No.235)5 kA
Overvoltage categoryIII
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingYes
Touch protectionYes
5SY6602-8 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
SealableYes
5SY6602-8 — 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
5SY6602-8 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

The Siemens 5SY6602-8 is a 4-pole (3P+N) miniature circuit breaker in the SENTRON 5SY6 series, rated 2 A at 400 V AC with a D tripping characteristic. Breaking capacity is 6 kA per EN 60898, 30 kA per IEC 60947-2, and 5 kA per UL 1077 / CSA C22.2 No.235. Rated for 72 V DC maximum, with a DC breaking capacity of 15 kA per IEC 60947-2 — useful for DC bus or battery circuits in the same panel, though the 2 A rating limits the load side.

Any mounting position allowed. The combined top and bottom terminals accept solid or stranded conductors from 0.75 to 35 mm² — that's a wide range, so you can land a 2.5 mm² load wire or a 25 mm² feeder without adapters. IP20 with connected conductors — finger-safe but not sealed; install inside a rated enclosure. Sealable, halogen-free, silicon-free. Touch protection is built in.

Frequently asked questions

Where can I buy 5SY6602-8 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time.

What is the difference between 5SY6602-8 and 5SY7140-8CC?

The 5SY7140-8CC is a higher-current variant in the same SENTRON 5SY7 series. The 5SY6602-8 is a 2 A D-curve 4-pole MCB; the 5SY7140-8CC is a 40 A C-curve 4-pole MCB. The physical footprint (72 mm wide, 4 width units) and DIN-rail mounting are identical, so it will drop into the same panel cutout, but the rating and trip curve are different — verify the load current and selectivity study before substituting.

MPN
5SY6602-8