Skip to main content
Log in
Siemens 5SY4650-7 — 4-Pole MCB (DIN Rail)

Siemens 5SY4650-7 SENTRON MCB, 4P, C-Curve, 10 kA

MPN5SY4650-7
Active

Siemens SENTRON 5SY4650-7, 4-pole miniature circuit breaker, C-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 4 MW, IP20.

Siemens 5SY4650-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4650-7 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY4650-7 — Ratings
ParameterValue
Number of poles4
Pole configuration3P+N
Rated voltage, AC (multi-phase)440 V
5SY4650-7 — Protection
ParameterValue
Tripping characteristic (trip curve)C
Energy limitation class3
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
5SY4650-7 — 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
5SY4650-7 — 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
5SY4650-7 — Performance
ParameterValue
Power loss per pole, AC (hot state, at In)3.8 W

Product details

Its C-curve tripping characteristic means it handles inrush currents 5–10× the rated current without nuisance tripping — the right call for motor starters, contactor coils, and transformer primaries where the start-up surge is short but sharp. That 15 kA also holds for DC per IEC 60947-2, so it works on 60 V DC control buses up to 72 V max.

DIN-rail fit and wiring constraints

The quick-assembly fastening snaps onto the rail and stays put; combined top and bottom terminals let you busbar feed without extra links. Neutral conductor switching is built in, so no separate N-bar needed for the outgoing side.

Frequently asked questions

Where can I buy 5SY4650-7 and how do I get a price?

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

Will 5SY4650-7 drop into a panel specified around 5SY4140-7 without rewiring?

Both are 4-pole SENTRON MCBs in the same 4 MW footprint, so the physical swap is a straight DIN-rail exchange. The difference is the breaking capacity: 5SY4650-7 carries 15 kA per IEC 60947-2 versus the lower-rated sibling — verify the panel's prospective fault level before swapping.

What compliance documentation does Siemens provide for 5SY4650-7?

The breaker is designed to IEC/EN 60898-1 and IEC/EN 60947-2, with UL 1077 and CSA C22.2 No. 235 recognition. Halogen-free and silicon-free construction. Standard Siemens declarations (CE, UKCA, RoHS) are available via the product documentation.

MPN
5SY4650-7