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Rectangular aluminium power supply, silver finish, screw terminals visible

myVolts

myVolts S-100-24 24V 4.2A 100W AT Power Supply

SKU CH-178X-099WQ

24V 4.2A 100W AT switch-mode supply with overload, over-voltage and short-circuit protection, CCC/FCC/CE compliant for industrial, LED and 3D-printer use

  • Product typeAT
  • Reliable operation from 0 to 40 °C ambient
  • High efficiency with low DC ripple for stable output
  • circuit, overload and over-voltage protection built in
  • 100 % full-load burn-in test ensures dependable start-up
  • Strong insulation and CCC, FCC, CE safety compliance

Industrial 24V AT Supply

This myVolts S-100-24 unit delivers 24 volts at 4.2 amps for 100 watts of continuous power. It accepts a universal AC input from 100 to 240 volts and provides DC output through L, N, GND and V terminals with an adjustable voltage tap. The aluminium alloy enclosure relies on natural convection cooling. It suits industrial automation, LED displays, CCTV, radio equipment, 3D printers and similar 24 V DC loads.

Wiring and Mounting

Installation requires connecting live and neutral to the AC input terminals and securing the DC load to the GND and V outputs; the ADJ terminal allows fine voltage trimming. No forced-air cooling is present, so the unit must be mounted with free airflow around its aluminium case. The screw-terminal block demands correct polarity — reversed DC connections will trigger the protection circuit. Operating temperature range is 0 to 40 °C with up to 95 % non-condensing humidity.

Pre-Purchase Checks

Verify that your equipment requires a 24 V DC supply rated at or below 4.2 A and can tolerate the AT form factor. Confirm the available mounting space accommodates the approximate 85 x 58 x 33 mm footprint and that natural convection is sufficient for the installation environment. Ensure the AC mains voltage at the site falls within the 100 to 240 V range and that local regulations accept CCC, FCC and CE compliance marks.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $78.99
Cheaper than about 76% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeAT

Questions about this item

How can I confirm the S-100-24 is delivering a stable 24 V after installation?

Measure the DC output with a multimeter; it should read close to 24 V with minimal ripple, and the unit should run without triggering its short-circuit, overload or over-voltage protections.

What comes in the box with the S-100-24 and what must I source separately?

The supply itself is included; you must provide an AC mains cable for the L and N terminals and your own DC wiring for the V+ and GND outputs.

Which model from the comparison table should I choose if I need 4.2 A at 24 V?

Select the S-100-24, rated at 100 W and 4.2 A; the S-48-24 and S-60-24 only supply 2 A each.

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