Technical Specifications
Electrical
| Voltage type for actuating | AC |
|---|---|
| Rated control supply voltage at AC 50 Hz | 110 V |
| Rated control supply voltage at AC 60 Hz | 120 V |
| Type of electrical connection of main circuit | Screw connection |
| Service limit current rating | 311 A |
| Continuous current | 270 A |
| Heat dissipation | 19.8 W |
| Circuit closing inrush current peak including offset, max | 3163 A |
| NEMA size | Size 5 |
| Capacitor switching kVAR | 80 kVAR @ 230V load voltage, 3-phase |
| Pole configuration | 3 power poles with 1 NO auxiliary contact |
| Operating volt amperes burden | Sealed: 96VA, 60 Hz coils (series L) |
| Hp rating, max | 75 Hp @ 230V load voltage, 3-phase (plugging and jogging duty) |
| Transformer primary switching kVA rating | 94 kVA @ 460V load voltage, 3-phase (inrush current ≤20 times continuous current) |
| Modular version | Yes |
| Coil operating limits | 85 % |
Mechanical
| Number of auxiliary contacts, max | 8 |
|---|---|
| Mechanical life operations | 5000000 |
| Average operating time, pick-up | 25 ms |
| Average operating time, drop-out | 18 ms |
Construction
| Required torque on power terminal wire clamps and pressure connectors or lugs | 375 lb.in |
|---|---|
| Type of power terminal | Pressure terminals |
| Wire size | For power terminals: 4 AWG…500 MCM |
| Enclosure | Open Type |
| Power contact material | Silver Alloy |
| Auxiliary contact material | Silver |
| Requirements for sizing of wire | All wire rated 167 °F (75 °C) or higher must be sized per the local electrical code for 167 °F (75 °C) wire |
Environmental
| Operating position | Vertical |
|---|---|
| Altitude | 10000 feet before derating |
| Operating temperature | -13 to 149 °F (-25 to 65 °C) @ starters with eutectic alloy overload relay, -13 to 131 °F (-25 to 55 °C) @ starters with electronic overload relay, (provided condensation is prevented) |
| Corrosion-resistance | All metal parts are treated for corrosion-resistance |
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