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Siemens 5SY6601-8 — 4-Pole MCB (DIN Rail)

Siemens 5SY6601-8 SENTRON MCB, 1 A, D Curve, 4P, 30 kA

MPN5SY6601-8

Siemens SENTRON 5SY6 series, miniature circuit breaker, 4-pole (3P+N), rated current 1 A, tripping characteristic D, 400 V AC, breaking capacity 30 kA per IEC 60947-2 / 6 kA per EN 60898.

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

Specifications

5SY6601-8 — Identification
ParameterValue
Type / order code5SY6
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY6601-8 — Ratings
ParameterValue
Number of poles4
Pole configuration3P+N
Rated current (In), AC400 V
Rated current (In), AC1 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
5SY6601-8 — 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
5SY6601-8 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
SealableYes
5SY6601-8 — 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
5SY6601-8 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

The Siemens 5SY6601-8 is a SENTRON miniature circuit breaker with a 1 A rated current and a D tripping characteristic, 4-pole (3P+N) configuration rated at 400 V AC.

The 4-pole unit occupies 4 width units (72 mm).

Humidity tolerance: 95% at 55 °C, derating to 35% at 75 °C. Halogen-free and silicon-free construction. Touch protection is built in. The part is sealable for tamper-proof installations. Approvals include EN 60898, IEC 60947-2, and UL 1077 / CSA C22.2 No. 235 (5 kA at AC).

Frequently asked questions

What is the breaking capacity of 5SY6601-8?

30 kA per IEC 60947-2, 6 kA per EN 60898 at 400 V AC, and 15 kA per IEC 60947-2 at DC (72 V max). UL 1077 rating is 5 kA at AC.

Will 5SY6601-8 drop into a panel specified around 5SY3132-6?

Both are 4-pole SENTRON MCBs with the same DIN-rail footprint and 4 width units. The 5SY6601-8 is a 1 A D-curve; 5SY3132-6 is a different rating and curve. Panel fit is the same, but verify the current rating and tripping characteristic match the circuit design before substitution.

Where can I buy 5SY6601-8?

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 commitment.

MPN
5SY6601-8