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SPEEDMASTER® ADJUSTABLE SPEED AC & DC DRIVES

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Premium efficiency WATTSAVER® motors are specifically designed for use with inverters and carry a three-year warranty.

All LEESON stock NEMA three phase motors (1HP and larger) are protected by the Inverter Rated Insulation System (IRIS™). The system provides superior motor protection against voltage spikes induced by variable frequency drives. This total insulation system protects better than spike-resistant magnet wire alone. Specially formed phase insulation, cushioned and sleeved connections (from the leads all the way into the turns), and deep-penetrating, non-hygroscopic, high temperature varnish are just a few features contributing to the extra protection. All this plus secon generation, spike-resistant magnet wire. The IRIS™ total insulation system is standard at no extra cost in all LEESON stock NEMA three-phase motors, 1HP and larger.

Micro Series
AC Inverters

Speedmaster® adjustable speed drives with plain-English programming and read-out. Models range from 1/2 through 60 HP. NEMA 1 enclosure.

Micro Series WASHGUARD®
AC Inverters

Speedmaster® adjustable speed drives in NEMA 4/12 enclosure. Plain-English programming and read-out. Models range from 1/2 through 20 HP.

SM Plus Sub-Micro
AC Inverters

Speedmaster® adjustable speed drives with "big drive" features and ultra-compact size. Models range from 1/4 through 10 HP. IP20 enclosure - chassis mount.

Micro Series
AC Inverters - Single Phase Input

Speedmaster® adjustable speed drives with plain-English programming and read-out. Models range from 1/2 through 60 HP. NEMA 1 enclosure, single-phase input.

DC Adjustable
Speed Drives

Speedmaster® DC drives for use with SCR rated motors. Models range from sub-FHP through 3 HP. NEMA 1 and NEMA 4/12 enclosures available.

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