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Rectangular metal power supply unit with built-in fan and terminal block connections

Mean Well

Mean Well TP-150B Triple Output Power Supply +/-12V 5V 148W

SKU CH-A47M-A82CN

Delivers triple-output power at 148 W with active PFC and built-in fan cooling

  • Product typeAT
  • Triple output delivers ±12 V and 5 V rails for flexible system builds
  • Active PFC corrects power factor for efficient AC mains utilisation
  • Universal AC input accepts full-range voltage without manual switching
  • Comprehensive protections guard against short circuit, overload, over-voltage and over-temperature
  • Forced-air cooling with built-in DC fan maintains stable operation under load

Triple-output AT power supply

The Mean Well TP-150B delivers three regulated rails: +12 V, -12 V and +5 V from a single AT-form-factor chassis. It is built for industrial equipment, test benches or legacy systems that still require the classic triple-output arrangement.

Continuous 148 W across all rails

The combined output is rated at 148 W with individual currents of .6 A on -12 V, 5.5 A on +5 V and 15 A on +12 V. Active PFC and universal AC input keep the unit stable across worldwide mains voltages, while built-in protections guard against short circuit, overload, over voltage and over temperature.

Straightforward chassis mount with fan cooling

Four mounting holes accept standard AT screws and the integrated DC fan provides forced-air cooling at this power level. Installers must verify that the AT pin-out matches the target backplane, because reversed sense leads or missing -12 V loading are the most common causes of start-up failure.

How it compares

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

Price $185.99
Pricier than about 60% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

Should I pick the 148 W triple-output version or a single-rail unit?

This model delivers +5 V at 15 A and ±12 V at 5.5 A and .6 A simultaneously, so choose it when you need all three rails from one enclosure.

What does the 148 W rating mean once the supply is installed?

It is the combined continuous power available across the +5 V and ±12 V rails under forced-air cooling, with protections for overload, over-voltage, short-circuit and over-temperature.

How does the active PFC function affect the AC input?

Built-in active PFC lets the unit accept universal AC input across the full range while improving power-factor and reducing harmonic current on the mains.

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