Medium Voltage (MCC) NEMA Standard

Ampgard 7.2 kV / 15kV medium-voltage motor control
Ampgard medium-voltage starters are the ultimate in motor control, performance, reliability and protection. Eaton offers a complete line of full voltage and reduced voltage starter types. This broad selection of medium-voltage control supports a wide range of industrial applications including pulp and paper, water and wastewater, oil & gas and HVAC.
Core features
- Designed and tested to meet UL® 347
- Available with arc-resistant enclosures that comply with IEEE Standard C37.20.7-2007
- Outfitted with Eaton’s Type SL vacuum contactors – the industry’s highest interrupting ratings
- Proven durability with a long-life isolation switch rated for 10,000 mechanical operations
- Top-mounted main bus for convenient installation and maintenance
- Starter types include full voltage non-reversing (FVNR), reduced voltage reactor (RVR), reduced voltage autotransformer (RVAT) and reduced voltage solid state soft starter (RVSS)
- Available with Eaton EMR series of motor protection relays for comprehensive and safe motor monitoring and starting control
- Completely front accessible
- Two-high 400 A and one-high 800 A starter configurations
Technical Specification
RATINGS
POWER RATING |
50-5000 Hp | 50-7500Hp |
INPUT VOLTAGE RATING |
2400-6900 V | 6900 – 15000 V |
BASIC IMPULSE LEVEL (BIL) |
60 kV BIL | 95KV BIL |
INTERRUPTING RATING |
50 kA rms symmetrical |
AMBIENT TEMPERATURE |
0 to 40 degrees C |
STANDARDS
UL |
347 |
NEMA |
ICS3 |
CSA |
C22.2 |
THIRD PARTY RECOGNITION/APPROVAL |
UL/cUL available for most configurations |
SEISMIC QUALIFICATION |
IBC |
ENCLOSURE
ENCLOSURE TYPE |
NEMA 1, NEMA 12, NEMA 3R |
ACCESSIBILITY |
Front |
INDOOR SECTION DIMENSIONS (TYPICAL) |
36″w x 30″d x 92″h |
BUS INSULATION |
Uninsulated is standard, heat shrink sleeve is optional |
BUS SUPPORTS |
Glass polyester |
DEVICES
SWITCHING DEVICE |
Vacuum contactor (400A / 800A) |
CONTACTOR CONNECTION |
Bolted is standard, stab is optional |
FUSE MOUNTING |
Bolted is standard, stab is optional |