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Rectangular metal power supply unit with screw terminals and ventilation slots

myVolts

myVolts DC Switching Power Supply 12V 30A 240W

SKU CH-T8RS-3QTTJ

Delivers 12 V at 30 A for CCTV, LED strips and other 240 W DC projects

  • Product typeAT
  • High-quality components ensure reliable operation
  • Multiple protection circuits guard connected devices
  • Wide AC input range suits global mains voltages
  • High efficiency with low ripple saves energy
  • Iron shell and self-cooling enable durable performance

Purpose and audience

This 240 W regulated power supply converts 110 V to 240 V AC mains into a steady 12 V DC output rated at 30 A. It suits installers powering CCTV cameras, LED strips, access-control gear or similar low-voltage projects that need a single high-current rail.

Thermals noise and power draw

The unit relies on passive self-cooling with no internal fan, so it runs silently in normal operation. An iron shell acts as the heatsink across the rated -10 °C to 40 °C ambient range. Efficiency is described as high with low DC ripple and low electromagnetic interference.

Build quality and connections

Screw-terminal blocks accept live, neutral, ground and the DC load pair for secure wiring. The metal enclosure provides basic shielding and durability for indoor or sheltered outdoor mounts. UL, CCC and CE marks confirm compliance with common safety standards. Over-voltage and over-current circuits latch off and auto-recover once the fault clears.

How it compares

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

Price $45.99
Cheaper than about 91% 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 do I wire the AC input terminals L, N and G on this 12V 30A supply?

Connect L to the live conductor, N to neutral and G to earth on a 110-240V 50/60Hz mains circuit; the iron case must be earthed for safety.

What maintenance does the glass tube fuse on this 240W unit require?

The glass tube fuse is a one-time protection device; if it blows from an overload or short circuit, replace it with the same rating before restoring power.

At what ambient temperature does this self-cooled 12V 30A supply reach its thermal limit?

The specified working range ends at 40°C; above that temperature the self-cooling design cannot guarantee stable 12V ±5% output at 30A.

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