The SC9000 EP arc-resistant variable frequency drive (VFD) is designed to safely contain, cool and redirect exhaust gases in the event of an arc flash incident. Built in an arc-resistant Type 2B enclosure for the strength needed to resist the forces of arc blasts up to 50 kA, the fully integrated arc-resistant drive provides enhanced safety from the front, sides and rear of the enclosure, even with the control doors open.
Short on space? The Ampgard ductless AR reduces your footprint and gives you the flexibility to install the equipment anywhere, without modifying or planning for large exhaust ducts or external blast zones.
Want to learn more?
Medium-voltage variable frequency drives comprise many interconnect power components operating in tandem and should not be considered a simple add-on piece of equipment. This white paper offers a detailed failure mode analysis is presented in several scenarios to illustrate the reason why arc-resistant drives need to be considered.
| POWER RATING | 300-6000 hp |
| INPUT VOLTAGE RATING | 2400-4160 V |
| OUTPUT VOLTAGE RATING |
0-2400 V 0-3300 V 0-4160 V Contact Eaton if higher output voltage is required |
| BASIC IMPULSE LEVEL (BIL) |
60 kV BIL |
| INTERRUPTING RATING | 50 kA rms symmetrical |
| AMBIENT TEMPERATURE (WITHOUT DERATING) |
0 to 40 °C |
| STANDARD OVERLOAD RATING (VARIABLE TORQUE) |
110% for 1 minute out of 10 minutes |
| OPTIONAL OVERLOAD RATING (CONSTANT TORQUE) |
150% for 1 minute out of 10 minutes |
| OUTPUT FREQUENCY |
1-120 Hz |
| UL | 347A |
| NEMA | ICS6/ICS7 |
| CSA | C22.2 |
| IEEE | C37.20.7-2007 |
| THIRD PARTY RECOGNITION/APPROVAL | UL/cUL available for most configurations |
| SEISMIC QUALIFICATION | none |
| ENCLOSURE TYPE |
Arc resistant |
| ACCESSIBILITY |
Front |
| INDOOR SECTION DIMENSIONS (TYPICAL) |
172" w x 50" d x 128" h to 246" w x 50" d x 128" h |
| BUS INSULATION | Heat shrink sleeve |
| BUS SUPPORTS | Glass polyester |
| COOLING | Air cooled with heat pipes |
| SWITCHING DEVICE |
Medium-voltage IGBT |
| DEVICE MOUNTING |
Draw-out inverter |
| ISOLATION TRANSFORMER | 24-pulse |
| INPUT POWER CIRCUIT PROTECTION | Vacuum contactor with current limiting fuses |
| HEAT LOSS | 23 W/hp (typical) |
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