A:Answer Thanks for reaching out to us, Jack! Here are the electrical specifications of this unit: Amps @ 240 Volts is 40 Amps
Connected Load @ 240V is 7.9 kW
Minimum Circuit Required is 40 Amps
Voltage Rating is 240 V
The power cord recommended looks to be around 4". Should you have further questions or concerns, you can contact us by phone at 1-800-374-4432. Monday through Friday, 8:30 a.m. to 8:00 p.m. EST, and our experts will be happy to assist. -Rox