48V to 12V 40A 480W DC to DC Converter
The WEHO WH-C481240 is a rugged and versatile DC-DC buck converter, designed to step down 48VDC (30V-60V range) to a regulated 12VDC output. Delivering 480W of power at 40A, it boasts a high 95% efficiency rating and a low no-load consumption of less than 4W. The unit’s compact $118\times80\times28mm$ profile allows for installation in shallow spaces without sacrificing performance. It is equipped with input low-voltage protection (shutdown at ≤26V, recovery at ≥29V) and is fully sealed and waterproof for all-weather reliability. Advanced circuitry ensures a tight 1% voltage tolerance and 3% load regulation. With over-current protection and a reliability rating of over 100,000 hours, the WH-C481240 provides consistent, high-capacity power for demanding 12V loads in 48V battery environments.
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- Description
Summary
Rated output: power 480W
Input voltage: 48VDC
Wire Length: 160mm±10mm
General specification
| Model | WH-C481240 |
| Rated Output Power (W) | 480W |
| Rated input voltage(V) | 48VDC |
| Rated output voltage(V) | 12VDC |
| Input voltage range(V) | 30V-60VDC |
| Input starting voltage(V) | 30VDC 100%Load |
| Input low voltage protection(V) | Turn off the output when ≤ 26VDC, and self recover when ≥ 29VDC |
| No-load power consumption (W) | < 4W |
| Efficiency | 95% |
| Output voltage(V) | 12VDC |
| Output current | 40A |
| Voltage tolerance | 1% |
| Load regulation | 3% |
| Wave (MVP-p) | 100mv External 22UF capacitor ESR < 0. 1 Ω 100KHZ |
| Over current protection | In the case of rated output, if the current exceeds 120% of the rated current, the overcurrent protection will act, and it will automatically recover after the overcurrent disappears. |
| Output short circuit protection | Equivalent to a maximum current of 35A and an output voltage of 0V |
| Input-output | Non-isolated |
| Waterproof | Fully sealed and waterproof |
| Dimension | 118×80×28mm |
| N.W. | 500g |
| Cooling method | Natural Method |
| Rated temperature rise (℃) | 45℃ |
| Reliability | >100000h |
| Wire indicator | Input positive (red), input output negative (black), output positive (yellow), lead length=160mm±10mm |
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