The 5SY8314-7 is a SENTRON 3-pole miniature circuit breaker with a C tripping characteristic, rated at 400 VAC and delivering 70 kA interrupting capacity per IEC 60947-2 — that's the fault-clearing figure that governs the arc-flash rating downstream. At DC it holds 15 kA per the same standard; under UL 1077 it's listed at 5 kA, so for a UL 508A panel the branch-circuit SCCR must stay at or below that limit. Mounting position is any. Depth is 76 mm (70 mm behind the panel surface). Vibration resistance per IEC 60068-2-6 is ±1 mm at 5 to 25 Hz and 50 m/s² at 25 to 150 Hz — it holds up on a mill table or conveyor drive panel without nuisance trips from mechanical shock.
Siemens 5SY8314-7 SENTRON MCB, 3P C-Char, 70 kA IEC, 400 VAC
MPN5SY8314-7
Active
Siemens SENTRON 5SY8314-7, miniature circuit breaker, 3-pole, C tripping characteristic, 70 kA at 400 VAC per IEC 60947-2, 15 kA DC, 5 kA per UL 1077, 50/60 Hz, IP20, current production.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Number of poles | 3 |
| Pole configuration | 3P |
| Suitability for operation | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic (curve) | C |
| Breaking capacity per IEC 60947-2 | 70 kA |
| Overvoltage category | III |
| IP protection class | IP20, with connected conductors |
| Pollution degree | 3 |
| Parameter | Value |
|---|---|
| Rated voltage (AC, multi-phase) | 440 V |
| Voltage type (AC/DC) | AC |
| Supply frequency range | 50/60 Hz |
| Power loss per pole at rated current (AC, hot) | 0.9 W |
| Mechanical service life (operating cycles, typ.) | 10 000 |
| Neutral conductor switching | No |
| Rated voltage (AC, single-phase) | 440 V |
| Parameter | Value |
|---|---|
| Modular width units | 3 |
| Mounting position | any |
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Terminal tightening torque, max. | 75 °C |
| Terminal tightening torque, min. | -40 °C |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Fastening method | Quick assembly system |
| Sealable | Yes |
| Accepts supplementary devices | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Influence of surrounding temperature | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
| Vibration resistance (IEC 60068-2-6) | ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz |
Product details
Frequently asked questions
What compliance documentation does this brand provide for 5SY8314-7?
The manufacturer provides RoHS and REACH declarations on request. The part is certified to IEC / EN 60947-2 and UL 1077, and the housing is halogen-free and silicon-free.
Can I buy 5SY8314-7 here and how do I get a price?
Sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ with your target quantity and delivery window; availability and current pricing are confirmed at quote time.
MPN
5SY8314-7