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Enclosed metal power supply unit with dual output terminals

Mean Well

Mean Well RD-85B 88W Dual Output 5V 24V Power Supply

SKU CH-JJAC-NDCF8

An 88 W dual-output supply delivers 5 V at 8 A and 24 V at 2 A, rated for 70 °C operation with 105 °C capacitors and 300 VAC surge tolerance

  • TypeAT
  • Dual 5 V and 24 V rails deliver 88 W total power
  • 8 A on 5 V and 2 A on 24 V for balanced loads
  • Rated for 70 °C operating temperature with 105 °C capacitors
  • Surge tolerance up to 300 VAC for 5 seconds
  • Withstands 5 G vibration for harsh environments

Dual 5V and 24V rails

The Mean Well RD-85B is an enclosed AC-DC switching power supply that delivers two regulated outputs from a single unit. It suits industrial equipment, test benches and embedded projects that need both logic-level and higher-voltage rails simultaneously.

88 W total with 8 A on 5 V and 2 A on 24 V

The dual-output design reduces wiring and saves panel space compared with using separate supplies. It accepts a wide AC input and can tolerate a 300 VAC surge for five seconds, making it resilient in environments with unstable mains. The unit is rated for operation up to 70 °C and uses 105 °C electrolytic capacitors for extended service life.

Vibration rated to 5 G for harsh environments

The 88 W capacity comfortably runs typical control boards, sensors and small actuators on the 5 V rail while powering motors or relays on the 24 V rail. Headroom diminishes when both channels draw near their rated currents continuously, so loads that exceed 8 A on 5 V or 2 A on 24 V will require a larger supply.

Points forts

  • Dual 5 V and 24 V rails deliver 88 W total power
  • 8 A on 5 V and 2 A on 24 V for balanced loads
  • Rated for 70 °C operating temperature with 105 °C capacitors
  • Surge tolerance up to 300 VAC for 5 seconds
  • Withstands 5 G vibration for harsh environments

Caractéristiques

TypeAT

Questions sur cet article

What is the maximum operating temperature before the RD-85B shuts down or degrades?

The unit is rated for continuous operation up to 70 °C ambient temperature.

How loud does the RD-85B get and how much heat does it dump into a closed cabinet after hours of full-load use?

It uses passive cooling with 105 °C rated capacitors, so it runs silently but relies on external airflow to move the 88 W of waste heat.

Which cables or connectors must I already have to wire the RD-85B into my equipment?

You need to supply your own input power cord and output wiring to the screw terminals for the 5 V / 8 A and 24 V / 2 A rails.

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