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Siemens 5SY4601-5 — 4-Pole MCB (DIN Rail)

Siemens 5SY4601-5 SENTRON MCB, 1A, Char A, 4P, 10kA/35kA

MPN5SY4601-5
Active

Siemens SENTRON miniature circuit breaker, 5SY4601-5, 1 A, characteristic A, 4-pole (3P+N), 10 kA per EN 60898, 35 kA per IEC 60947-2, 4 MW units, IP20.

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

Specifications

5SY4601-5 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY4601-5 — Ratings
ParameterValue
Number of poles4
Pole configuration3P+N
Rated current (In), AC1 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
5SY4601-5 — Protection
ParameterValue
Tripping characteristic (trip curve)A
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
Touch protectionYes
5SY4601-5 — 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
5SY4601-5 — 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
5SY4601-5 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

Fit and derating

The 1 A rating is at 35 °C ambient; at 40 °C it's 0.95 A, at 50 °C it's 0.9 A, and at 60 °C it's 0.85 A. If your panel hits 60 °C, you're not getting a full amp out of this pole.

Characteristic A — what that means

Characteristic A trips between 2 and 3 times rated current — that's fast and sensitive. It's the curve for semiconductor protection, control transformers, or any load where a short spike shouldn't hold. Not the curve for motor starting (that's C or D). The 1 A rating means it's sized for small-signal circuits, not branch power.

Listed to IEC / EN 60898-1 and IEC / EN 60947-2 / UL1077. Halogen-free and silicon-free — relevant if you're sealing the panel or putting it in a clean environment. Sealable and touch-protected. The brand provides standard RoHS/REACH declarations on request; the UL1077 listing covers US acceptance for supplementary protection.

Frequently asked questions

Who supplies 5SY4601-5 and how is it quoted for volume purchases?

Sourced through independent distribution channels. Quoted to order against an RFQ — availability and current pricing confirmed at quote time.

When sourcing 5SY4601-5, what's the closest functional second-source — 5SY4140-7?

The 5SY4140-7 is a 4-pole characteristic A breaker but at 40 A — same footprint, same trip curve family, completely different current class. It won't drop into a 1 A slot without rewiring the load side.

What is 5SY4601-5's listed depth (76 mm) on this component line?

Overall depth is 76 mm; installation depth (behind the panel) is 70 mm.

What is 5SY4601-5's listed width (72 mm) on this component line?

Width is 72 mm, which corresponds to 4 modular width units on a standard DIN-rail grid.

Will 5SY4601-5 drop into a panel that was specified around 5SY4140-7 without rewiring?

Same physical footprint — both are 4-pole, 4 MW units — but the 5SY4601-5 is 1 A and the 5SY4140-7 is 40 A. The panel wiring and load protection must match the 1 A rating; you cannot simply swap without re-calculating the circuit.

What compliance documentation does this brand provide for 5SY4601-5 (RoHS, REACH, UL, IEC)?

The breaker carries IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 certifications. Standard RoHS/REACH declarations are available from the manufacturer.

MPN
5SY4601-5