Siemens SENTRON 5SY4 series, miniature circuit breaker, 4-pole (3P+N), D tripping characteristic, 10 A rated, 400 V AC, 10 kA (EN 60898) / 20 kA (IEC 60947-2).
| Parameter | Value |
|---|---|
| Type / order code | 5SY4 |
| Brand name | SENTRON |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Pole configuration | 3P+N |
| Rated current (In), AC | 400 V |
| Rated current (In), AC | 10 A |
| Rated voltage, AC (multi-phase) | 440 V |
| Rated voltage, AC (single-phase) | 440 V |
| Rated voltage, DC (max.) | 72 V |
| Voltage type | AC |
| Rated frequency | 50/60 Hz |
| Parameter | Value |
|---|---|
| Tripping characteristic (trip curve) | D |
| Rated breaking capacity (Icn), per EN 60898 | 10 kA |
| Rated breaking capacity, per IEC 60947-2 | 20 kA |
| Breaking capacity, AC (UL 1077 / CSA C22.2 No.235) | 5 kA |
| Overvoltage category | III |
| Degree of protection (IP) | IP20, with connected conductors |
| Neutral conductor switching | Yes |
| Touch protection | Yes |
| Parameter | Value |
|---|---|
| Width in modular units | 4 |
| Width | 72 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Mounting position | any |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Tightening torque, max. | 31 lbf·in |
| Tightening torque, min. | 22 lbf·in |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Influence of ambient temperature (derating) | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
| Parameter | Value |
|---|---|
| Mechanical service life (switching cycles, typ.) | 10 000 |
The Siemens 5SY4610-8 is a SENTRON 5SY4-series miniature circuit breaker — 4-pole (3P+N), D-curve, 10 A rated current at 400 V AC.
For DC circuits it's rated 15 kA per IEC 60947-2 up to 72 V. UL 1077 / CSA C22.2 No. 235 recognition at 5 kA covers North American panel builds.
10 kA per EN 60898, 20 kA per IEC 60947-2 at 400 V AC, and 15 kA per IEC 60947-2 at 72 V DC. UL 1077 / CSA rating is 5 kA.
Both are 4-pole SENTRON 5SY-series MCBs on the same DIN-rail footprint, so mechanical fit is identical. The difference is the tripping curve — 5SY4610-8 is D-curve (10–20× In), while 5SY4140-7 is B-curve (3–5× In). If the original design relied on B-curve selectivity, swapping to D-curve without coordination check risks nuisance tripping on fault; if the load is motor or transformer, D-curve is actually the better fit.
The breaker carries EN 60898 and IEC 60947-2 ratings, plus UL 1077 and CSA C22.2 No. 235 recognition. It is halogen-free and silicon-free. Standard Siemens declarations of conformity (CE, UKCA) and material compliance (RoHS, REACH) are available on request.
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.
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