THE SENTRY SIZE 5, MODEL AY HEAT TREAT FURNACE IS DESIGNED FOR THERMAL PROCESSING WITH A MAXIMUM OPERATING TEMPERATURE OF 2500 DEGREES. THIS UNIT FEATURES HONEYWELL CONTROLS AND HAS AN INTERNAL CHAMBER SIZE OF 12 INCHES WIDE BY 8 INCHES HIGH BY 17.5 INCHES DEEP. ELECTRICAL SPECIFICATIONS INCLUDE A REQUIREMENT FOR 220V 3 PHASE POWER, WITH AN OPERATIONAL RATING OF 33 KW AND 87 AMPERES.