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ABB 3AUD0000004278 — AC Drive (VFD) 600V

ABB 3AUD0000004278 HVAC Drive, 75 Hp, 77 A, 500-600 V, NEMA

MPN3AUD0000004278
Active

ABB HVAC packaged drive with e-clipse bypass and disconnect, 3-phase, 500-600 V input, 75 Hp light-overload (77 A), NEMA Type 3R enclosure.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3AUD0000004278 — Electrical (input)
ParameterValue
Input voltage range500 ... 600 V
Number of phases3-phase
Frequency range50/60 Hz
3AUD0000004278 — Output / Performance
ParameterValue
Output power (UL), light overload75 Hp
Output current (UL), light overload77 A
3AUD0000004278 — Mechanical
ParameterValue
NEMA enclosure typeType3R

Product details

The ABB 3AUD0000004278 is an HVAC packaged drive with e-clipse bypass and disconnect, built for 3-phase 500-600 V input. Its light-overload UL rating of 75 Hp (77 A) means it can handle a 75 Hp motor continuously without derating, with the bypass allowing the motor to run at line frequency if the drive faults out — a standard arrangement for fan and pump applications where a failed drive doesn't stop the process.

The NEMA Type 3R enclosure means this drive is rated for outdoor installation — rain-tight and sleet-resistant, suitable for rooftop HVAC units, cooling towers, or outdoor pump houses. No additional weatherproof housing needed as long as the conduit entries are properly sealed.

Frequently asked questions

What is the input voltage range for 3AUD0000004278?

The drive accepts 500-600 V AC, 3-phase, 50/60 Hz. That covers common 480 V and 575 V North American industrial supplies within tolerance.

What enclosure type does 3AUD0000004278 have?

NEMA Type 3R — rain-tight and sleet-resistant, suitable for outdoor mounting without additional weatherproofing.

Where can I buy 3AUD0000004278?

This drive is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
3AUD0000004278