PSR3-230/75-25-202 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The PSR3-230/75-25-202 is a power supply by Kollmorgen and part of the PSR Servo Power Supplies series. It features a current rating of 75 Amps per phase, a nominal bus voltage of 325 VDC, and a bus capacitance of 0.0066 Farads. Its regen resistance is 4.5 Ohms, with a maximum bus voltage of 385 VDC and no internal regeneration.
Internal Product Review
The PSR3-230/75-25-202 is a Kollmorgen servo power supply with a 325 VDC nominal bus voltage and a 75 Amps/Phase current rating. A 385 VDC max bus voltage and 365 VDC bus hysteresis voltage support stable DC bus performance in demanding motion systems. A 4.5 Ohm regen resistance makes this unit a strong choice for controlled energy handling in servo applications.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The PSR3-230/75-25-202 is a dedicated DC bus supply designed for integration into multi-axis automation cabinets. It belongs to the PSR Servo Power Supplies series from Kollmorgen and provides a regulated energy rail for connected servo drives and motors. By converting three-phase mains power into a stable high-voltage bus, the unit supports rapid current transients and coordinated motion profiles. This arrangement is suitable for packaging lines, gantries, material-handling equipment, and similar electromechanical systems that operate several synchronized axes. The centralized supply also allows connected inverters to draw energy from a common source during changing motion demands.
The supply can deliver up to 75 A per phase, giving downstream inverters the surge capability needed for simultaneous axis acceleration. Its normal operating potential is maintained at 325 VDC, balancing motor efficiency with the voltage margin required by the power semiconductors. Protective circuitry limits the bus to 385 VDC during regenerative back-feeding from decelerating motors. Switching resumes after the charge falls to the 365 VDC hysteresis threshold, which prevents rapid contactor cycling as the voltage changes. A bus capacitance of 0.0066 F stores pulsed energy locally and reduces voltage sag during peak-current events. This stored energy helps keep individual servo amplifiers operating when several motors accelerate at the same time.
Machine loads can return substantial energy to the DC bus while slowing, so an external brake resistor can be connected to the designated port. The specified resistance of 4.5 ohms provides the required path for dissipating regenerated energy outside the supply chassis. The unit is supplied without internal regeneration modules, allowing external braking hardware to be selected for the machine’s duty cycle. Its wiring arrangement and mechanical footprint are compatible with related Kollmorgen power and drive equipment, helping maintain an orderly cabinet layout. Line filtering, thermal management, and braking components can be arranged separately around the power supply. This separation allows the bus supply to provide current for coordinated axis groups while external components handle heat removal and regenerated energy.
