400Hz Ground Power Supply
400Hz aerospace and military ground power units from Preen, for aircraft ground power, avionics testing, and MIL-STD-704 compliance work.
AMF Series
400Hz Power Supply / Ground Power Unit — Laboratory & Facility Use
The lab/facility counterpart to AMV, scaling from 500W single-phase bench units to 400kVA three-phase facility systems, MIL-STD-704F compliant.
View Full Series →⚡ AMF: IP54 Available as an Optional Configuration
AMF ships as a standard indoor chassis by default. It can be built into a customized outdoor container or upgraded to an IP54-rated enclosure as an option — contact Finch to configure this for your application.
AMV Series
400Hz Power Supply / Ground Power Unit — Field-Deployable
A rugged unit purpose-built for aviation and military field use — airports, hangars, and maintenance stations — available as a self-contained trailer for -40°C to 55°C deployment.
View Full Series →⚡ AMV: Ships with IP54 Protection as Standard
Unlike most 400Hz ground power units, the AMV Series is built for real field deployment, not adapted for it after the fact. IP54 protection with salt/damp/mold-resistant coating is included on every unit as standard, alongside a fully self-contained trailer option — not an add-on you need to specify. If your application needs a fixed indoor installation instead, standard rack-mount configurations remain available.