E21NCLT-LDM-PH-00 Kollmorgen
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The Kollmorgen E21NCLT-LDM-PH-00 is a stepper motor from the E Hybrid Stepper Motors series featuring a NEMA 23 frame size and SIGMAX construction. It provides a step angle of 1.8 degrees with 200 steps per revolution, and has a double shaft configuration. The motor is rated for insulation class B at 130°C and operates in temperatures from -20°C to +40°C.
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Product Description:
The E21NCLT-LDM-PH-00 hybrid stepper motor is manufactured by Kollmorgen as part of the E Hybrid Stepper Motors series. It converts pulse commands from a drive into incremental rotary motion, supplying bidirectional positioning for pick-and-place heads, light conveyors, and small actuator stages used throughout industrial automation. SIGMAX magnetic construction raises low-speed torque density without enlarging the frame. The open-loop holding capability of the stepper format removes the need for feedback devices in many installations.
The motor occupies the NEMA 23 envelope, allowing direct installation in mounts that follow the 2.3-inch NEMA pattern. Power conductors exit through a System MS connector, allowing the harness to be locked securely in place. Each drive pulse advances the rotor by 1.8 degrees, resulting in 200 full-step positions per revolution. The stator windings have a Class B thermal rating of 130 °C, maintaining dielectric integrity when the 340 VDC insulation voltage limit is observed. Electrical integration uses a four-lead series arrangement. The single magnetic stack, laminated rotor, and NEMA mounting interface support maximum torque at low speed while keeping microstep transitions smooth.
Insulation resistance measures 100 megohms, and indexing repeatability remains within a ±1.5% step accuracy band. The permitted ambient temperature range is -20 °C to +40 °C, allowing operation on unconditioned plant floors. The motor has a double-ended shaft that can accommodate a rear-mounted encoder or an additional coupling. A green and yellow ground lead supports protective bonding, while the phase conductors are color-coded black, orange, red, and yellow. The motor does not include a shaft seal, so it should be installed away from areas where liquids or dust could enter through the shaft opening. Proper enclosure placement helps protect the unsealed shaft interface without changing the motor’s mounting arrangement or electrical connections.
