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Silver aluminium box with screw terminals and cooling slots

myVolts

myVolts Switching Power Supply Transformer Driver Adapter Reliable High Efficiency CCTV Engineering S-120-24

SKU CH-43M9-8X7H6

Delivers 24 V DC at 5 A with 120 W output, includes short-circuit, overload and over-voltage protection, and operates from 0 to 40 °C

  • TypeAT
  • High efficiency with low DC ripple for stable power
  • circuit, overload and overvoltage protection built in
  • 100 % full-load burn-in test ensures reliability
  • Operates from 0 to 40 °C for long service life
  • Excellent insulation strength meets CCC, FCC and CE standards

24V 120W switching power supply

This myVolts switching power supply delivers a regulated 24V DC output at up to 5A for a total of 120W. It accepts a universal AC input range of 100 to 240V, making it suitable for global use. The unit is built for industrial automation, LED displays, CCTV systems, radio equipment, computer engineering, LED light bars and 3D printers. Its aluminium alloy housing aids heat dissipation without active cooling.

Upgrade from lower-wattage 24V units

The S-120-24 replaces smaller 24V supplies such as 48W or 60W models when the connected load exceeds their current capability. The step up is worth it when a single 24V rail must drive multiple LED strips, a larger CCTV array or a 3D printer heated bed without hitting the previous unit's current limit. Built-in short-circuit, overload and overvoltage protection reduces the risk of damage to downstream equipment during faults.

5A continuous headroom for typical loads

At 5A continuous output the supply comfortably runs several metres of 24V LED tape, a mid-size CCTV camera cluster or a standard 3D printer bed heater with margin for start-up surges. The 100% full-load burn-in test confirms stable operation at the rated 120W. Headroom diminishes when ambient temperatures approach the 40°C upper limit or when the load draws near 5A for extended periods, at which point thermal derating or a higher-power unit becomes necessary.

Highlights

  • High efficiency with low DC ripple for stable power
  • circuit, overload and overvoltage protection built in
  • 100 % full-load burn-in test ensures reliability
  • Operates from 0 to 40 °C for long service life
  • Excellent insulation strength meets CCC, FCC and CE standards

Specifications

TypeAT

Questions about this item

What are the mounting dimensions for the S-120-24 power supply?

The comparable S-48-24 model measures 85 x 58 x 33 mm, giving a reference footprint for the S-120-24 chassis.

Which terminals must be connected first when wiring the AC input and DC output?

Connect L and N to AC mains first, then attach GND to the negative load lead and V to the positive load lead before powering on.

How often should the internal fan be cleaned to maintain the 0 to 40 °C operating range?

The unit uses natural convection cooling, so there is no fan; keep ventilation slots clear of dust instead.

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