Dell B20-3648-24A 36V 48V to 24V 20A 480W power adapter
Converts 30-60V DC input to fixed 24V output at 20A delivering 480W with 97% efficiency in an IP68 waterproof aluminium housing
- Adapter typeUSB C Charger
- Units per package1
- Product type9 V
- Details1.7 L x 8.3 W x 10 H centimeters, B20-3648-24A, YAXIGE, 0.3
- Key featuresBattery Powered
- Product dimensions14.33 in W × 12.83 in H × 9.06 in D
- Converts 30-60V DC input to stable 24V 20A output
- Delivers 480W maximum power with up to 97% efficiency
- IP68 waterproof aluminium shell resists shock humidity and dust
- Built-in overload overcurrent overtemperature short-circuit and overvoltage protection
- Operates reliably from -40°C to 85°C shell temperature
Industrial-grade DC-DC buck converter
This Dell B20-3648-24A module steps down 36V or 48V nominal inputs to a fixed 24V output rated at 20A and 480W. It accepts a 30-60V DC range and is built for vehicle, marine and industrial equipment that requires stable 24V power from higher-voltage battery systems. The IP68-rated aluminium shell is sealed against water, dust, shock and humidity. It suits installers who need a rugged, single-unit solution without external cooling.
Sustained-load behaviour and protection
At full load the converter runs at 95% efficiency and maintains voltage accuracy within ±1.5% with load regulation of ±0.2%. Ripple is specified at 200mVp. Built-in safeguards cover over-load, over-current, over-temperature, over-voltage and short-circuit conditions. The shell is rated for continuous operation from -40°C to 85°C, so thermal throttling is not a concern in enclosed engine bays or outdoor cabinets.
Replaces bulky transformer setups
This unit replaces separate step-down transformers and external protection circuits in 24V accessory circuits on trucks, buses, golf carts and telemetry rigs. The jump is worth it when wiring space is tight and a single waterproof block with quick-connect terminals cuts installation time. It does not suit systems that need adjustable output voltage or galvanic isolation between input and output.
How it compares
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- Price $45.99
- Pricier than about 77% of the 3,875 comparable items (median $23.99).
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Specifications
| Product | |
|---|---|
| Brand name | Dell |
| Product line | B20-3648-24A |
| Model name | B20-3648-24A |
| Part number | B20-3648-24A |
| Product type | 9 V |
| Adapter type | USB C Charger |
| Size & build | |
| Product dimensions | 14.33 in W × 12.83 in H × 9.06 in D |
| Product weight | 0.3 kg |
| In the box | |
| Units per package | 1 |
Questions about this item
How much heat does the 480 W converter produce when running continuously at full load?
At full load the converter runs at 95 % efficiency, so about 24 W is dissipated as heat; the aluminium shell and IP68 sealing are rated for -40 °C to 85 °C ambient temperature.
What wiring and battery setup must I already have to install this unit?
You need a 36 V or 48 V DC source within the 30-60 V input range and the two quick-connect terminals supplied; strip each wire 10 mm and push it fully into the connector.
Will this 24 V 20 A output safely power older 24 V accessories such as LED light bars or radios?
Yes, the fixed 24 V output with ±1.5 % accuracy and protections for over-voltage, over-current, over-temperature and short-circuit is designed for 24 V equipment including LED light bars, radios and similar legacy devices.
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