K43HLFL-LSS-NS-02 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific K43HLFL-LSS-NS-02 is a stepper motor from the K PowerPac Motors series, featuring a NEMA 42 heavy duty mounting and a frame dimension of 4.325 inches square. It offers a holding torque of 39.9 Nm, uses SIGMAX enhanced construction, and has a step angle of 1.8 degrees with ±1.5% accuracy. The motor operates within a temperature range of -20°C to +40°C and has insulation rated to 340 Vdc with an 8 lead configuration.
Internal Product Review
The K43HLFL-LSS-NS-02 is a Pacific Scientific stepper motor built with enhanced SIGMAX construction and a heavy-duty NEMA mounting format. A 1.8° step angle paired with ±1.5% step accuracy supports consistent positioning in demanding motion applications. Splashproof conduit connection to the terminal board and 39.9 Nm holding torque make this motor a strong choice for dependable static load control.
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Product Description:
The K43HLFL-LSS-NS-02 is a stepper motor produced by Pacific Scientific as part of the K PowerPac Motors series. It advances the shaft in 1.8° increments so controllers can index tooling, conveyors, or actuators without an encoder. A heavy-duty NEMA mounting face attaches directly to machinery, and the laminated rotor design limits eddy-current losses during rapid starts and stops. With a square 4.325-inch frame, the unit fits into compact drive bays while delivering the stall torque required for mid-range positioning tasks in automated equipment.
Power and signal conductors enter through a 1/2 in. NPSC pipe thread conduit, and the lead bundle uses a splash-proof terminal-board connection via conduit for washdown or coolant-spray areas. The internal windings use enhanced SIGMAX construction to increase flux density, contributing to a rated holding torque of 39.9 Nm. The frame complies with the NEMA 42 outline, so the shaft and pilot diameters match standard couplings and gearboxes. Step accuracy remains within ±1.5%, supporting repeatable motion when the drive sends full-step or microstep pulse trains. An insulation resistance of 100 MΩ helps protect winding integrity, and the stator withstands up to 340 V before dielectric breakdown.
The motor’s three-stack magnetic core brings its total length to 201 mm. An eight-lead configuration enables series or parallel phase wiring to accommodate the drive’s current limits. The coils have a rated insulation voltage of 340 VDC, permitting operation with high-bus drives without overstressing the enamel insulation. Continuous service is supported across an ambient temperature range of -20°C to +40°C, allowing startup in unheated warehouses and sustained operation inside enclosures. The absence of feedback electronics reduces the number of electrical connections required for open-loop positioning applications.
