A-20 HT RING240V1P 300W A-20 HT RING120V1P 400W A-20 HT RING240V1P 400W A-20 HT RING120V1P 500W A-20 HT RING240V1P 500W A-20-3 HT RING120V1P 300 A-20-3 HT RING240V1P 300 A-20-3 HT RING120V1P 400 A-20-3 HT RING240V1P 400 A20-3 120V 500W RING A-20-3 HT RING240V1P 500 A-30 HT RING120V1P 450W A-30 HT RING240V1P 450W A-30 HT RING120V1P 500W A-30 HT RING240V1P 500W A-30 HT RING120V1P 550W