The 3AUD0000000138 is an ABB HVAC drive with an integrated circuit breaker disconnect, built for 3-phase 208–240 VAC line inputs at 50/60 Hz. Its UL light-overload rating lands at 50 Hp / 143 A output, which means it can handle a 50 Hp motor on a fan or pump load curve without derating — the breaker and drive are one assembly, so the panel builder skips a separate disconnect and saves a few inches of rail space.
Enclosure and deployment context
NEMA Type 3R enclosure means it's rated for outdoor installation — rain-tight, sleet-resistant, and suitable for rooftop or wall-mount HVAC units. No need for a secondary weather hood if local code accepts the drive's own enclosure.
