PC833-103-N Pacific Scientific
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The Pacific Scientific PC833-103-N is part of the PC800 - PCE800 Brushless Servo Drives series and features a continuous output power of 1.5 kW at 240 VAC three-phase. This servo drive delivers a forced-air output current of 5.3 ARMS, with a peak output current of 10.6 ARMS and a power stage efficiency of 98%. Its dimensions are 198.1 mm in height, 88.1 mm in width, and 158 mm in depth.
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Product Description:
The PC833-103-N brushless servo drive is produced by Pacific Scientific as part of the PC800–PCE800 Brushless Servo Drives series. It converts fixed 240 VAC three-phase line power into precisely regulated current for permanent-magnet servomotors, enabling accurate positioning, velocity, and torque control in automated packaging lines, robotics, and CNC equipment. The device integrates with digital motion controllers through its compact housing, allowing multiple axes to share cabinet space while maintaining the deterministic response demanded by modern industrial automation.
The continuous converter output current is 3.6 ARMS, supporting steady-state motion without excessive thermal rise, and the corresponding continuous power rating is 1.5 kW when the unit is supplied by 240 VAC three-phase mains. Adding forced-air cooling increases the permissible output to 5.3 ARMS, extending low-speed torque capability. Semiconductor losses are kept low by a power-stage efficiency of 98%, which reduces the cabinet heat load. The pulse-width-modulated inverter operates at an output ripple frequency of 20 kHz, keeping motor current ripple outside the audible range. Internal capacitors can absorb 30 J of regenerated energy before the shunt activates. The drive can also deliver an idealized 4.5 kW burst for rapid acceleration.
Peak demand is handled by a momentary output of 15 A from zero to peak, or 10.6 ARMS when expressed as an RMS value. The dedicated shunt resistor dissipates up to 12.8 kW of excess bus power during braking events. Motor leads may extend to 50 m without additional line reactors, provided that total inductance remains below the drive’s 2 H ceiling and above the 2.0 mH floor required to preserve current-loop bandwidth. The enclosure measures 88.1 mm wide, 158 mm deep, and 198.1 mm high, allowing side-by-side mounting when multiple axes are required.
