E41RLHA-LSS-NS-02 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen E41RLHA-LSS-NS-02 is a stepper motor in the E Hybrid Stepper Motors series with a NEMA 42 frame size and a holding torque of 1380 oz-in. This motor has SIGMAX construction, a smooth shaft, rated phase current of 10.6 Amps, and an insulation resistance of 100 Megohms. It features a phase inductance of 2.5 mH and a step angle of 1.8 degrees with 200 steps per revolution.
Internal Product Review
The E41RLHA-LSS-NS-02 is a well-engineered hybrid stepper motor featuring SIGMAX construction and a NEMA 42 frame. A 1380 oz-in holding torque and 1.8-degree step angle support strong positioning performance in demanding motion applications. Splashproof conduit-board connection simplifies industrial installation, and +/-1.5% step accuracy stands out as a key performance advantage.
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Product Description:
The E41RLHA-LSS-NS-02 belongs to the E Hybrid Stepper Motors series manufactured by Kollmorgen. This hybrid stepper motor combines permanent-magnet and variable-reluctance technology to translate pulse trains from a motion controller into discrete shaft positions. Its open-loop operation supports conveyor indexing, process-valve actuation, fixture alignment, and other applications that require repeatable incremental movement. The motor advances according to commanded pulses without requiring a position feedback device.
The motor occupies a NEMA 42 frame and measures 4.28 inches in diameter, allowing it to fit mounting brackets designed for large stepper motors. Its holding torque of 1380 oz-in helps secure stationary loads after command pulses stop. Each command advances the rotor by 1.8 degrees, resulting in 200 full steps per revolution with an accuracy of ±1.5%. Current is supplied to the four-lead parallel windings at 10.6 A per phase. The laminated rotor transfers motion through a smooth shaft that accommodates clamping couplings without requiring a keyway. Kollmorgen’s SIGMAX construction concentrates magnetic flux to increase torque density without extending the motor stack. The motor uses a single stator stack to maintain its axial profile. Electrical conductors enter through a splash-proof termination board equipped with a 1/2-inch NPS conduit connector, providing a protected connection point for plant wiring.
The motor has a phase inductance of 2.5 mH and a phase resistance of 0.16 ohms, which support drive selection and current rise-time calculations. Its winding thermal resistance is 1.8 °C per watt, providing a basis for evaluating heat buildup during sustained operation. The permitted continuous operating temperature range is -20 °C to +40 °C. Class B insulation permits winding temperatures up to 130 °C. The insulation withstands 340 VDC and provides 100 MΩ of resistance under dry conditions. These electrical and thermal characteristics allow the drive current and duty cycle to be set within the motor’s operating limits while preserving reliable open-loop positioning.
