Keeping a battery bank charged while supplying critical DC loads calls for a charger/rectifier with a filtered output, programmable charging curves and a blocking diode for parallel operation. The MMF-ASR does it at nominal voltages of 24, 48, 110/120 and 220/240 V DC with currents from 10 to 500 A and up to 36.3 kW, for vented lead-acid, VRLA or nickel-cadmium batteries, and also works as a power supply without batteries.
MMF-ASR key data
- DC output: nominal 24, 48, 110/120 and 220/240 V DC; currents of 10, 20, 100, 150, 200, 320 and 500 A; factory IU, IU1U2 and I1I2U charging curves plus custom curves.
- Catalogue models: from 24 V / 50 A (36 V max., 1800 W) to 48 V / 500 A (72 V max., 36,300 W), 120 V / 50-100 A (180 V max.) and 240 V / 50-100 A (360 V max., up to 34,100 W).
- Supply: single-phase 120-208-220-230-240 V AC or three-phase 208-220-230-240-380-400-440-480-600 V AC, ±10 %, 50/60 Hz ±5 %; efficiency >90 % and power factor >70 % (single-phase) or >85 % (three-phase), average values over the charge cycle.
- Batteries: vented lead-acid, VRLA and nickel-cadmium; it can also be used as a power supply without batteries.
- Output stage: ultra-filtered, constant, ripple-free current, LC output filter, dual output connectors and output blocking diode for parallel operation.
- Protection and signalling: overload, short circuit and overvoltage, full anti-arcing protection with auxiliary wires, power-on self-test in under 10 s; LCD display with 4 LEDs, keyboard and alarm board with direct-contact relays.
- Construction: cabinet A 622 × 518 × 1057 mm or B 650 × 550 × 1400 mm, IP21 as standard or IP54/NEMA 3R optional, operation from −10 to +50 °C.
- Standards: CE; EMC IEC EN 61000-6-2 and IEC EN 61000-6-4; safety IEC EN 60335-1:2012 and EN 60335-2-29:2004/A2:2010; quality ISO 9001:2015.
The Amperis MMF-ASR battery rectifier has the most efficient technology available today.
It has a robust and reliable design for industrial applications, with the advantage of easy access and on-site maintenance.
It is a universal charger valid for all types of batteries (multi-voltage, multi-capacity and multi-chemical): ventilated lead-acid, VRLA (valve-regulated lead-acid) or nickel-cadmium. It can also be used as a power source without batteries.
The great advantage is that you have a complete set of standard load curves programmed in the factory with the possibility of creating and saving customised load curves. The MMF-ASR control boards are based on state-of-the-art microprocessors. The charger/restifier is based on standardized SCR and IGBT power converter technologies.
THE MMF-ASR CHARGER IS A RECTIFIER SYSTEM THAT COMBINES THE VERSATILITY OF THE MMF CHARGER WITH THE BENEFITS OF THE ASR RECTIFIER.
- The Amperis MMF charger is a universal, programmable, digitally controlled charger. It can work with any type of battery and support any type of application (Training, Conditioning, Recovery, Desulphation and Regeneration). It has a very complete set of charging curves (the user can program new curves).
- The Amperis ASR battery rectifier is designed to power critical DC loads or to charge any type of battery. It is based on standardized IGBT and SCR power converter technologies (in 6/12 pulse configuration) which guarantees high reliability and efficiency.
It is based on a new power conversion technology, which combines very high efficiency, unit power factor (PFC), universal capabilities and precise load control.
The MMF-ASR ensures a minimum temperature rise in the battery during the charging process, thanks to the ultra-filtered output current (perfectly constant charge current and zero ripple). It has an output blocking diode for parallel capacity, double output connectors and an output LC filter.
The power stage's convection cooling system is designed to work 24 hours a day.
Typical applications
- Battery formation
- Battery testing
- Conditioning and desulphating
Optional equipment
- Submersible probe for battery temperature.
- IP54 or NEMA 3R enclosure type
- Extended data logger with miniUSB or Bluetooth port
- Output block diode (for parallel operation)
- Load switch.
- Monitoring of earth faults, alarms and cooling system.
- Redundant power supply for the control boards.
Frequently asked questions
Can it supply critical DC loads while charging the battery?
Yes. The MMF-ASR combines the MMF charger with the ASR rectifier: it keeps the associated battery charged and supplies voltage to critical loads, and without a battery it works as a power supply. Its output blocking diode allows parallel connection.
Which voltages and currents are available?
Nominal voltages of 24, 48, 110/120 and 220/240 V DC with currents from 10 to 500 A; catalogue models range from 24 V / 50 A (1800 W) to 48 V / 500 A (36,300 W), with single-phase supply from 120 V AC or three-phase supply up to 600 V AC.
