Product Description:

The CTP12ELS20MAA00 is a hybrid stepper motor manufactured by Kollmorgen for the CT Stepper Motors series. It belongs to the Cool Torque Performance Series and is intended for incremental motion in indexing tables, pick-and-place heads, and miniature stages used in industrial automation. A Size 17 frame that measures 4.2 cm square, a metric shaft, a two-stack stator, and English-tapped mounting holes allow the motor to fit compact automation frames without additional adapters.

Motion resolution is fixed at 1.8° per step, yielding 200 full steps per revolution, and positional deviation remains within the specified ±5% step accuracy. Under static excitation, the rotor withstands 62 oz-in of holding torque, and during dynamic two-phase energization it delivers 0.56 N-m of bipolar torque. Drive electronics must supply 2.0 A DC per phase at 3.5 VDC, which is compatible with low-voltage chopper stages. Six color-coded leads provide the phase pairs, so series or parallel wiring is possible. The rear of the housing is open, there is no additional hardware, and mounting uses English-tapped holes in the face. Detent torque is limited to 3 oz-in to reduce unwanted micro-movement, while a rotor inertia of 0.00106 oz-in-s² supports fast index cycles.

Thermal and dielectric values set the operating limits. Each winding presents 1.6 mH of inductance and 1.70 Ω of resistance, so current rise times remain controllable and switching losses stay modest. Insulation withstands 80 VDC and measures 100 Megohms to ground, supporting reliable operation in humid cabinets. Heat generated at rated load is conducted through the aluminum frame at 4.71 °C/W, and the 0.76 lb mass helps absorb short-term thermal peaks. Bearings tolerate 15 lb of radial load at shaft center plus axial forces of 6 lb push or 15 lb pull, matching typical belt tension and end-thrust values. A metric shaft supports the intended high-torque operation without rear extensions or additional cooling.