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Comparison · Power supplies

PTA-600W-12V (600 W) or MeanWell EPP-500-54

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Test current: PTA-600W-12V (600 W) (66 A vs. 11.3); Ripple: MeanWell EPP-500-54 (150 mV vs. 250); Temperature rise: MeanWell EPP-500-54 (115 °C vs. 135).

ModelPTA-600W-12V (600 W)PTA-600W-12V (600 W)2025Read review →MeanWell EPP-500-54MeanWell EPP-500-542021Read review →
Power, W600500
Test current, A6611.3
Ripple, mV250150
Temperature rise, °C135115
Review conclusionWith reservationsRecommended

Only in one review: Voltage 54 V (MeanWell EPP-500-54); Current 50 A (PTA-600W-12V (600 W)); In test 550 W (MeanWell EPP-500-54); Efficiency 95 % (MeanWell EPP-500-54); No load 1.5 W (MeanWell EPP-500-54); Protection 11.3 A (MeanWell EPP-500-54).

PTA-600W-12V (600 W): In practice, it is a 500–550 W supply: it overheats at 51 A and its voltage sags noticeably under load.

MeanWell EPP-500-54: The compact PSU showed high efficiency and acceptable ripple, but the transformer gets noticeably hot under heavy load.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.

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