8911 definite purpose starters are inexpensive starters for applications with relatively low duty cycles. Typical applications include air compressors, agricultural equipment, pumps, and HVAC equipment. This three pole definite purpose starter has a full load rating of 50 amperes. This starter has ratings of 3 HP at 115 VAC and 10 HP at 230 VAC single phase. It has a 15 HP at 230 VAC, 30 HP at 460 VAC and 575 VAC poly phase. The replaceable coil is available with a variety of coil voltages. This device has a 110/120 VAC 50/60 Hz coil. The starter has straight through wiring. The melting alloy type overload relay uses Type B thermal units to sense over current conditions. This starter doesn't have an enclosure. Enclosures are available. Starter is 7.0 inches tall, 3.5 inches wide and 4.0 inches deep. Auxiliary contacts are available for these starters. 8911DPS definite purpose starters are UL component recognized.