Track power supply, 48 V 2.1 A, 100 W or 24 V 100 W transformer

In brief: Based on review measurements: Test current: Track power supply, 48 V 2.1 A, 100 W (2.5 A vs. 2); Temperature rise: 24 V 100 W transformer (55 °C vs. 58).

Model	Track power supply, 48 V 2.1 A, 100 W2026Read review →	24 V 100 W transformer2016Read review →
Voltage, V	48	24
Current, A	2.1	4
Power, W	100	100
Test current, A	2.5	2
Temperature rise, °C	58	55
Review conclusion	With reservations	Recommended

Only in one review: In test 100 W (24 V 100 W transformer); Ripple 800 mV (Track power supply, 48 V 2.1 A, 100 W); Efficiency 87 % (Track power supply, 48 V 2.1 A, 100 W); No load 0.2 W (Track power supply, 48 V 2.1 A, 100 W); Protection 3.5 A (Track power supply, 48 V 2.1 A, 100 W); Price 13 $ (24 V 100 W transformer).

Track power supply, 48 V 2.1 A, 100 W: A compact supply with good power and moderate heating, but its protection-trip current is much too high.

24 V 100 W transformer: The transformer works normally and reaches at most 52–55°C at full power.

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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