This inverter is capable of providing 10A clean sine wave 120VAC running off locomotive 74V system.
It has a wide operating range of operation 56-90VDC allowing the inverter to provide 120VAC even when the locomotive is not running. It is protected with a 10A circuit
Circuit Breaker needs external 20A Circuit Breaker to protect the line input power provided by cab builder. It is typicly used to power 120VAC oulets including running any accesories that require 120VAC power, refrigirator, microwave etc AC outlets needed for Laptops.