Power and Bus Protection Units
 BPU 2G |
Silver Engineering Inc. offers several Bus Protection Units designed to protect the power input to a spacecraft or payload during integration and test activates. The BPU’s monitor for over/under voltage and over current and disconnects power in the event of a fault condition. |
| BPU 1G | Monitors Over and Under Voltage in a standalone configuration. Current protection by DC circuit break. Power connect/disconnect mercury relay. 35A standard, 50VDC |
| BPU 2G | Monitors Over and Under Voltage in a standalone and remote modes. Adjustable current protection. Remote control via DAQ interface. Can monitor 2 external analog voltages. +/- 100A switching 50VDC. Bus disconnect with FET switch and Power Relay. Flexible architecture. |
| OVPU | Over Voltage Protection Unit. Supports twelve 50A power sources like Solar Array Simulators, Battery Simulators, T-0 etc. Ethernet interface for status monitoring. 26 Channels of continuous sampling and post/pre storage buffer of voltages and currents including monitoring of spacecraft critical power bus. |
| Bus Protection Unit Pricing Information |