Description
The Kussmaul Auto Charge 20/20 is a fully automatic, integrated battery charger and Battery Saver Low Ripple system designed for emergency and specialty vehicles equipped with a single 12-volt battery bank. Providing 40 amps of total output capacity, the Auto Charge 20/20 combines a 20-amp battery charger with a separate 20-amp Battery Saver output to maintain the vehicle battery while supplying uninterrupted power to auxiliary electrical loads.
The charger operates automatically and stops charging when the battery is fully charged. Because the system does not continuously trickle charge the battery, it helps prevent overcharging and excessive water loss. Automatic current limiting and reverse polarity protection provide additional protection for the charger and vehicle electrical system.
The integrated Battery Saver Low Ripple output automatically removes connected accessory loads from the vehicle battery when AC shore power is supplied and powers them from the Battery Saver instead. This helps prevent parasitic electrical loads from discharging the vehicle battery while the apparatus is in station. Its clean, low-ripple output is designed to power radios and other mobile electronic equipment without causing electrical interference while providing uninterrupted power to connected accessories.
Separate front-panel ammeters provide convenient monitoring of battery charger and Battery Saver output currents. Dual cooling fans support reliable operation, while resettable AC input circuit breaker protection and a waterproof output circuit breaker provide additional electrical protection. The ruggedized construction is designed to withstand the shock and vibration encountered in vehicle-mounted installations.
Features
• Integrated automatic battery charger and Battery Saver Low Ripple system
• Designed for vehicles with a single 12-volt battery bank
• 40-amp total system output capacity
• 20-amp maximum battery charging output
• Separate 20-amp Battery Saver Low Ripple output for auxiliary electrical loads
• Automatic float charging operation regulates output to the connected battery bank
• Automatically stops charging when the battery is fully charged
• No continuous trickle charging helps prevent overcharging and excessive battery water loss
• Battery Saver automatically removes accessory loads from the vehicle battery when AC shore power is supplied
• Provides uninterrupted power to connected accessory loads while the vehicle is connected to AC power
• Helps prevent parasitic electrical loads from discharging the vehicle battery while in station
• Clean, low-ripple output helps prevent interference with radios and other mobile electronic equipment
• Separate front-panel ammeters indicate battery charger and Battery Saver output currents
• Dual cooling fans support reliable charger operation
• Automatic current limiting provides overload protection
• Reverse polarity protection helps protect the charger from incorrect battery connections
• LED indicators display AC power and reverse polarity status
• Battery Saver output protected by a replaceable 20-amp ATC fuse
• Resettable AC input circuit breaker protection
• Waterproof output circuit breaker provides additional electrical protection
• Ruggedized for the shock and vibration encountered in vehicle-mounted applications
• Designed for fire apparatus, rescue vehicles, ambulances, and other emergency or specialty vehicle applications
• 3-year warranty
Specifications
• Manufacturer: Kussmaul Electronics
• Product Type: Automatic Single-Bank Battery Charger with Battery Saver Low Ripple
• Charger Configuration: Single Battery Bank
• Total System Output Capacity: 40 Amps
• Battery Charger Output: 12 VDC, 20 Amps Maximum
• Battery Saver Output: 14.0 VDC, 20 Amps Maximum
• Charging Profile: Float
• AC Input Voltage: 120 VAC
• Input Frequency: 50/60 Hz
• Maximum Input Current: 8.5 Amps
• Input Protection: 10-Amp Resettable Circuit Breaker
• Battery Saver Output Fuse: 20-Amp ATC Fuse, Part Number 091-FUS0257020
• Output Protection: 30-Amp Waterproof Circuit Breaker, Part Number 090-0030-0
• LED Status Indicators: AC On and Reverse Polarity
• Output Current Indicators: Separate Front-Panel Ammeters for Charger and Battery Saver
• Cooling System: Dual Cooling Fans
• Automatic Current Limiting: Yes
• Reverse Polarity Protection: Yes
• Parasitic Load Compensation: No
• Low-Profile Design: No
• EV Series: No
• Weight: 13 lbs.
• Warranty: 3 Years


