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The Protec 9000/BC3 power supply is a self-contained supply designed to provide 24V dc and charge associated batteries simultaneously. The charger uses power factor correction to ensure a near-unity power factor, and switch-mode technology to provide a lightweight and efficient unit.
The design of the charger is such that mains must first be applied to the unit before the batteries will be capable of supplying the load. As such, if batteries only are connected to the charger, there will be no output at the load terminals until the mains is applied. The 9000/BC3 power supply is also compatible with th Protec range of fire alarm control panels and EVC40 disabled refuge/fire telephone system.
Current Protective Devices
Battery Variants
| Battery Life | Model | Enclosure Dimensions (mm) | Batteries |
| 5 year | 9000/BC3/10 | 440(w) x 385(H) x 144(D) | 4 x 6V 10Ah Batteries |
| 5 Year | 9000/BC3/18 | 440(w) x 385(H) x 144(D) | 2 x 12V 18Ah Batteries |
| 5 Year | 9000/BC3/24 | 440(w) x 385(H) x 220(D) | 2 x 12V 24Ah Batteries |
| Mains Input Voltage | 230V ac nomial +/- 10% |
| Mains Input Current | 0.5A maximum, fused at 1A (anti-surge) |
| Load Outputs | 2 seperate outputs, fused at 3.15A each |
| Maximum Quiescent Load (Imax a) | 10Ah batteries – 2A. 18Ah batteries – 1.5A. 24Ah batteries – 1A |
| Maximum Alarm Load (Imax b) | 3A |
| Output Voltage | 25 – 29V dc with mains present, bettery voltage when mains failed |
| Output Ripple | 1V maximum peak to peak at full output load |
| Battery Charge Voltage | 27.3V dc at 20ºC, temperature compensated at -40 mV/ºC fused at 5A |
| Maximum Battery Internal Resistance | 1 ohm |
| Battery Fault Levels | Undervoltage – 22V dc (fault relay operates), Overvoltage – 28.5V dc (fault relay operates) |
| Battery Low Voltage Cutoff | 18.5V dc (load removed from batteries) |
| Battery Monitoring | Complaint with EN54 Part 4 |
| Current Consumption From Batteries | 8mA maximum 30 seconds after mains failure, 0.5mA maximum when low volt disconnect active |
| Environment | 0-50ºC ambient (90% R.H non-condensing) |
| Fault Output | Changeover contacts rated at 5A 30V dc (non-inductive) |
| Batteries | Up to 24V 24Ah sealed lead acid (limited by 24 hour recharge to 85% capacity) |
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