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The AIMS Power 20 Amp 48V to 12V DC-DC Step Down Converter steps 44 to 58 Vdc down to a stable 12.5 to 13.5 Vdc. It delivers 20A continuous at 25°C (77°F) and up to 24A max, more than AIMS's 5 and 10 amp 48V to 12V converters, with conversion efficiency above 91%.
Choose it when a boat, golf cart, lighting setup or other 48V automotive, mobile or off-grid system has bigger 12V demands. The aluminum case measures 5.91 x 3.39 x 2.2 inches and weighs 1 lb, with a slotted mounting plate for a secure install.
With 20A continuous and 24A max, this model can feed more 12V lights and accessories at once than the 5 and 10 amp versions, while holding output between 12.5 and 13.5 Vdc.
Low battery shutdown at 40 ± 2 V and high battery shutdown at 59 ± 1 V stop the converter when input voltage is outside a safe range.
A 10A input fuse covers input over current and polarity protection. The output adds short circuit protection, over current protection at 24A and TVS diode over voltage protection, and over temperature protection is set at 65 ± 5°C (149 ± 5°F).
AIMS lists heat dissipation for the 20 amp model as thermal and load controlled, and the rear panel has a cooling fan.
The terminal block is marked + 48V − for DC input and − 12V + for DC output, a green power LED shows when it's running, and the fuse holder sits just below the terminals.
Golf carts. Power several 12V lights and accessories from a 48V cart battery pack.
Boats. Supply 12V electronics from a 48V system, mounted in a dry place away from spray and bilge.
Lighting and equipment. Run 12V lighting or equipment in vehicles and custom power systems built on 48V.
All three models share the 44 to 58 Vdc input and 12.5 to 13.5 Vdc output. The 5 amp model tops out at 6A and the 10 amp model at 12A. Pick the 20 amp model when your 12V load runs above 10A, up to 20A continuous.
AIMS lists this converter as non-isolated, with a non isolated ground. A system that requires isolated input and output needs an isolated converter instead.
AIMS's instructions ask you to confirm the converter has enough capacity for your load. Keep continuous draw at or below 20A, with 24A as the maximum. The battery source must be 48Vdc and the load 12Vdc.
AIMS lists input cable larger than 18AWG and output cable larger than 14AWG, a cable length limit of under 1m or 3 feet and 3-3.7 fork terminals. With the load turned off, connect it to the converter, then connect negative to the battery source before positive. Never reverse polarity.
AIMS rates the converter for 20A continuous at 25°C (77°F). The 24A max rating is also where output over current protection is set.
The DC input range is 44 to 58 Vdc, with shutdown at 40 ± 2 V and 59 ± 1 V.
AIMS says not to expose the converter to rain, snow, spray, bilge or dust, so choose a dry, protected location.
AIMS lists a 2-year warranty from the date of purchase.
The AIMS Power 20 Amp 48V to 12V DC-DC Step Down Converter gives larger 12V loads a stable supply from a 48V battery bank, with fan cooling, input shutdowns and fuse protection. If you'd like help adding up your 12V load or planning the wiring, the Outbound Power team is happy to help.
AIMS Power 20 Amp 48V to 12V DC-DC Step Down Converter Specifications |
|
|---|---|
| Electrical | |
| DC Input Voltage | 44-58 Vdc |
| DC Output Voltage | 12.5-13.5 Vdc |
| Output Current (Continuous at 25°C / 77°F) | 20A |
| Output Current (Max) | 24A |
| Conversion Efficiency | >91% |
| Isolation | Non-isolated (non isolated ground) |
| Status LED | Yes (Power) |
| Protection | |
| DC Input Low Battery Shutdown | 40 ± 2 V |
| DC Input High Battery Shutdown | 59 ± 1 V |
| DC Input Polarity Protection | Fuse |
| DC Input Over Current Protection | 10A fuse |
| Over Temperature Protection | 65 ± 5°C (149 ± 5°F) |
| DC Output Short Protection | Yes |
| DC Output Over Current Protection | 24A |
| DC Output Over Voltage Protection | TVS diode |
| Wiring | |
| DC Input and Output | Hardwire terminal block |
| Input Cable Size | >18AWG |
| Output Cable Size | >14AWG |
| Cable Length Limit | <1m or 3 feet |
| Terminal Type | 3-3.7 fork terminal |
| Physical | |
| Heat Dissipation | Thermal and load controlled, rear cooling fan |
| Case | Aluminum |
| Dimensions (L x W x H) | 5.91 x 3.39 x 2.2 in |
| Net Weight | 1 lbs |
| Mounting | Slotted mounting plate |
| Warranty | |
| Warranty | 2 years from date of purchase |
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