Product Description:

The EP3752-5215-7-56BC-CU is a permanent-magnet DC motor produced by Pacific Scientific within the Permanent Magnet DC Motors series. Designed for positioning and speed-regulated drive sections in conveyors, web-handling equipment, and general machine tools, the unit converts constant armature voltage into controlled shaft rotation and torque for closed-loop automation tasks. It follows the NEMA 56C frame convention, allowing direct use with compatible mounts and gear reducers. Its Totally Enclosed Non-Ventilated enclosure helps limit airborne contamination from reaching the internal windings during continuous industrial service.

The armature is energized at 180 V DC, and at this voltage the shaft reaches a rated speed of 1750 rpm, which suits many belt and gear transmissions. At rated conditions, the motor draws 3.3 A and delivers a steady output torque of 27.0 lb-in without overheating. At that operating point, the motor produces about 3/4 hp of mechanical power. A 5.875-inch mounting bolt circle and a 0.625-inch keyed shaft align with standard couplings, while the 14.38-inch overall length helps preserve panel space. The 3.10-ohm armature resistance limits inrush current during startup.

Transient events such as acceleration or line disturbances can be handled by a peak armature current of 38.0 A, giving short-term torque reserve without pushing the magnetic circuit too far. The 17.40 mH inductance smooths current rise times, which helps reduce brush arcing and eases stress on the drive electronics. A torque constant of 8.10 lb-in/A provides a predictable relationship between commanded current and developed torque, which supports stable controller response. Despite its cast-steel housing and laminated stack, the motor weighs only 34 lb, which helps limit loading on the mounting face.