MX Hazardous Duty Series stepper motors are explosion-proof, making them ideally suited for use in Class 1, Division 1 and Group D locations. The MX stepper motors are available in NEMA 34 and 42 frame sizes (90 and 110 mm). They provide minimum holding torques from 1.27 to 9.82 N-m (180 to 1390 oz-in). Features: MX09 models: NEMA 34 (90 mm) motors available in three stack lengths with minimum torque ratings from 1.27 to 3.88 N-m (180 to 550 oz-in MX11 models: NEMA 42 (110 mm) motors available in 2 stack lengths with minimum torque ratings from 6.0 to 9.82 N-m (850 to 1390 oz-in) Speeds up to 3,000 rpm provide for velocity demands of most high torque applications MX Hazardous Duty Series Stepper Motors Datasheet