Product Description:

The 118015 C6D17EK1 is a permanent-magnet DC motor manufactured by Kollmorgen within the EB Explosion Proof Motors series. Designed for hazardous or tightly sealed production areas, the unit converts electrical energy into mechanical output for driving pumps, small conveyors, or positioning screws in automated cells. Its totally enclosed, non-ventilated housing prevents airborne contaminants from entering the windings, while automatic thermal protection disconnects the circuit if the internal temperature rises beyond safe limits. The motor supports continuous-duty operation and produces a rated speed of 1750 rpm.

The electrical section is optimized for a nominal armature voltage of 90 V, allowing standard single-phase rectified supplies to operate the motor without additional voltage conversion. An armature resistance of 1.7600 Ω affects current flow, acceleration, and drive selection. The armature inductance is 6.600 mH, which helps smooth current ripple from SCR or PWM drives and reduce brush arcing. Under load, the motor draws 3.5 A, so upstream fuses and conductors must accommodate this continuous current. Electrical conversion efficiency reaches 78.9%, meaning that more than three-quarters of the input power is delivered as mechanical work while the remaining energy becomes heat that must dissipate through the frame.

The motor provides a full-load torque of 12.00 lb-in at its rated operating point, supporting predictable motion under normal load. Its rated output power is 0.33 hp, making it suitable for fractional-horsepower industrial machinery. The shaft has a diameter of 0.625 in, allowing connection to common belt pulleys or flexible couplings without custom bushings. Mounting follows the NEMA S56C frame pattern, so the motor can attach to compatible C-face gear reducers or pump heads. This mounting arrangement provides a rigid connection that helps maintain shaft alignment during continuous operation.