The Allen Bradley 1326AS-B330H-21 is a low inertia, brushless AC synchronous servo motor designed for high performance and efficiency. It features a neodymium-iron-boron permanent magnet rotor, offering low inertia, high peak torque, and swift acceleration in a compact form. Compatible with the Allen Bradley 1394 motion control system, this motor includes a sinusoidal wound stator for smooth operation at low speeds and an IP66-rated TENV enclosure for harsh industrial settings.
This motor operates on a 3-phase input voltage of 460V AC, delivering 0.9 kW of output power. It maintains a continuous stall current of 2.1 Amps and can handle a peak stall current of 6.0 Amps. At a 360V input, the rotor speed is 5370 RPM, reaching up to 6500 RPM with a 460V input. The motor's rated torque is 2.0 N-m (18.0 lb-in) with a peak torque of 5.6 N-m (50 lb-in), and it has a rotor inertia of 0.00009 Kg-m².
The motor has a mechanical time constant of 1.3 milliseconds at 40°C, an electrical time constant of 2.4 milliseconds, and a thermal time constant of 21 minutes with Class B thermal insulation. It features a winding voltage constant of 36 Volts per 1000 RPM, rated winding resistance of 10.2 Ohms, and winding inductance of 24.3 Millihenry. The motor includes a 2-pole brushless resolver for precise position feedback, delivering up to 1024 ppr (4096 counts/rev) A Quad B encoder output, eliminating the need for additional onboard electronics.
The physical design includes a 75 mm stator diameter and 30 mm magnet stack length, with a keyway and IEC metric flange mount option. It operates within a temperature range of 0 to 40°C (32 to 104°F) and a relative humidity range of 5% to 95% non-condensing, with storage temperatures between -30 to 70°C (-22 to 158°F). The motor weighs 11.2 kg and has dimensions of 246 x 89.5 x 93.0 mm.
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