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The Bel Power Solutions HD28-4-AG is a linear AC/DC converter designed for ITE (Commercial) applications. It provides a single output with a power rating of 112W and a current capacity of 4A. The unit is designed for chassis mounting and operates within a temperature range of 0°C to 50°C.
Key electrical specifications include a high voltage rating of 3 kV, adjustable output with remote sensing capabilities, and automatic current limit/foldback for short circuit protection. The AC input range is wide, accommodating 100, 120, 215, 230, and 240 Vac at 47-63Hz. The datasheet indicates a stability of ±0.05% for 24 hours after warmup and a temperature coefficient of ±0.01%/°C maximum.
This converter meets FCC and CISPR22 Class B conducted emissions standards. It also boasts a high MTBF of over 200,000 hours. All electrolytic capacitors are rated at 105°C, and the transformer insulation meets Class F (155°C) standards.
0°C to 50°C
Chassis Mount
100, 120, 215, 230, 240 Vac at 47-63 Hz
28V DC
60%
112W
Short circuit protection (automatic current limit/foldback), overvoltage protection on 5V models, and remote sense open lead protection.