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The APS BC-6964 Battery Charger is designed for hazardous location applications.
The BC-6964 accepts 3-phase 60 Hz AC input and generates 24 VDC 50A nominal output. The charger provides a seamless transition from a voltage source to a current limit operation for optimum battery charging. In voltage mode, the Charger regulates to a factory set DC voltage.
While operating as a voltage source, the Charger regulates its output voltage to provide optimum charging of the battery. If the output current demand exceeds a maximum setpoint, the Charger seamlessly transitions from voltage source to current limit, where the Charger folds back the output voltage to limit the current to the maximum charge current (Alimit). As the battery load decreases to less than Alimit, the BC-6964 will seamlessly return to voltage mode operation.
The BC-6494 AC input voltage is EMI filtered and rectified to a high voltage of approximately 650 VDC, filtered and stored in a DC link capacitor bank. A high-frequency IGBT full-bridge output inverter is pulse width modulated into the primary of a high-frequency step-down transformer. The transformer secondary is rectified, filtered and regulated to produce the precision Battery Charger output voltage.
Input power is provided by 3-phase AC input connections to an internal fuse block. Output charging power connections consist of two wire 24VDC connection terminals. Two 3/4" NPT conduit openings are provided to accommodate customer wiring. Optional USB and RS485 communication ports are available to provide remote monitoring of the Battery Charger operation.
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