The Allen-Bradley 170858 is a robust 2-pole contactor kit specifically designed for use with 1395 series digital DC drives, serving as an ideal replacement for Series A drives. Operating effectively within an amperage range of 3.6 to 345 Amps and supporting frequencies between 50 to 60 Hertz at voltages of 230, 380, 415, and 460 Volts AC, this normally open contactor is capable of handling up to 360 Amps. Engineered to ensure optimal performance in challenging conditions, it is essential for installation by qualified technicians who adhere to recommended environmental conditions of 0 to 55 degrees Celsius, 5 to 95% relative humidity (non-condensing), and a maximum altitude of 1000 meters for reliable operation and longevity.