Bosch PLENA voice alarm PLN-24CH12 Battery charger, 24V

The PLN-24CH12 Battery charger, 24V makes sure that the system batteries are always charged in public
address and emergency sound systems. Rack mountable, the unit charges lead‑acid batteries and simultaneously provides 24 V for system components. The battery charger is fully compliant and certified to EN 54‑4. The battery charger is a microprocessor controlled device of premium quality.
Functions
Performance
The maximum charger current is 12 A for charging the battery. The maximum battery capacity, according to
EN 54‑4, is 225 Ah. The minimum size is 86 Ah. The maximum output of the back‑up power system is 150 A.
The charger has an input voltage range of 195 V to 264 V, and a power factor corrector. The charger
features:
• Automatic shutoff when the battery voltage is too low to prevent battery damage
• Over‑voltage protection
• Protection against wrong battery polarity
• Short‑circuit protection.
The outputs are protected by fuses. The power supply takes a resistance measurement of the battery, including connections, every four hours. The charger comes with a temperature sensor to adapt the charging voltages to the actual battery temperature for best performance. The charger has additional 24 V auxiliary outputs, to supply power to equipment that needs 24 V as primary power. The current capacity of these outputs is 5 A per output. The charger has relay outputs to signal a mains fault, battery fault and charger output voltage fault.
Controls and indicators
• Mains status LED
• Battery status LED
• Output voltage fault LED
Interconnections
• 6 main outputs for the system, each with its own fuse
• 3 auxiliary outputs for peripherals, system components that always use 24 V with a lower current need
• Fault relays
• Battery connection