Website: www.kingtronics.com Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 SKT - Surge Arresters 3-Electrode Ceramic Surge Arrester ■ COMMON DIMENSIONS Electrical Characteristics Type SKT-3R-75A SKT-3R-90A SKT-3R-105A SKT-3R-230A DC spark-over voltage (100V/s) V Impulse spark-over voltage (1KV/us) V Impulse discharge current (10/1000us 300times) A Impulse discharge current (8/20us 10times) KA AC discharge current (50Hz 1s 5 times) A Holdover Voltage V Insulation resistance Ω Capacitance pF Transverse voltage durationns 75±25% ≤600 50 5 5 / ≥1010 <1.5 ≤200 90±25% ≤600 50 5 5 / ≥1010 <1.5 ≤200 150±20% ≤700 100 5 5 80 ≥1010 <1 ≤200 5 5 80 ≥1010 <1 ≤200 5 5 80 ≥1010 <1 ≤200 5 5 80 ≥1010 <1 ≤200 5 5 80 ≥1010 <1 ≤200 +30 -40 SKT-3R-350A SKT-3R-470A SKT-3R-600A Ⅰ ≤800 100 230 Ⅱ ≤500 / Ⅰ ≤800 100 350±20% 470±20% 600±20% Ⅱ ≤600 / I ≤900 100 Ⅱ ≤700 / ≤1200 100 Note: Specification are subject to change without notice. 1 Website: www.kingtronics.com ■ COMMON DIMENSIONS Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 Electrical Characteristics Type SKT-3R-75AL1 SKT-3R-75AL2 SKT-3R-75AL3 SKT-3R-75AL4 SKT-3R-90AL1 SKT-3R-90AL2 SKT-3R-90AL3 SKT-3R-90AL4 SKT-3R-150AL1 SKT-3R-150AL2 SKT-3R-150AL3 SKT-3R-150AL4 SKT-3R-230AL1 SKT-3R-230AL2 SKT-3R-230AL3 SKT-3R-230AL4 SKT-3R-350AL1 SKT-3R-350AL2 SKT-3R-350AL3 SKT-3R-350AL4 SKT-3R-470AL1 SKT-3R-470AL2 SKT-3R-470AL3 SKT-3R-470AL4 SKT-3R-600AL1 SKT-3R-600AL2 SKT-3R-600AL3 SKT-3R-600AL4 DC spark over voltage (100V/s) V Impulse spark over voltage (1KV/us) V Impulse discharge current (10/1000us 300times) A Impulse discharge current (8/20us 10times) KA AC discharge current (50Hz 1s 5 times) A Holdover Voltage V Insulation resistance Ω Capacitance pF Transverse voltage durationns 75±25% ≤600 50 10 10 / ≥1010 <1.5 ≤200 90±25% ≤600 50 10 10 / ≥1010 <1.5 ≤200 150±20% ≤700 100 10 10 80 ≥1010 <1 ≤200 10 10 135 ≥1010 <1 ≤200 10 10 135 ≥1010 <1 ≤200 10 10 135 ≥1010 <1 ≤200 10 10 135 ≥1010 <1 ≤200 +30 Ⅰ ≤800 100 -40 Ⅱ ≤500 / Ⅰ ≤800 100 230 350±20% ≤600 / Ⅰ ≤900 100 Ⅱ ≤700 / Ⅱ 470±20% 600±20% ≤1200 100 Note: Specification are subject to change without notice. 2 Website: www.kingtronics.com Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 ■ COMMON DIMENSIONS Electrical Characteristics Type SKT-3R-75AF1 SKT-3R-75AF2 SKT-3R-75AF4 SKT-3R-90AF1 SKT-3R-90AF2 SKT-3R-90AF4 SKT-3R-150AF1 SKT-3R-150AF2 SKT-3R-150AF4 DC spark over voltage (100V/s) V Impulse spark over voltage (1KV/us) V Impulse discharge current (10/1000us 300times) A Impulse discharge current (8/20us 10times) KA AC discharge current (50Hz 1s 5 times) A Holdover Voltage V Insulation resistance Ω Capacitance pF Transverse voltage durationns 75±25% ≤600 50 10 10 / ≥10 <1.5 ≤200 90±25% ≤600 50 10 10 / ≥10 <1.5 ≤200 150±20% ≤700 100 10 10 80 ≥10 <1 ≤200 10 10 135 ≥10 <1 ≤200 10 10 135 ≥10 <1 ≤200 10 10 135 ≥10 <1 ≤200 10 10 135 ≥10 <1 ≤200 SKT-3R-230AF1 SKT-3R-230AF2 SKT-3R-230AF4 230 +30 Ⅰ ≤800 100 -40 Ⅱ ≤500 / SKT-3R-350AF1 SKT-3R-350AF2 SKT-3R-350AF4 350±20% SKT-3R-470AF1 SKT-3R-470AF2 SKT-3R-470AF4 470±20% SKT-3R-600AF1 SKT-3R-600AF2 SKT-3R-600AF4 600±20% Ⅰ ≤800 100 Ⅱ ≤600 / Ⅰ ≤900 100 Ⅱ ≤700 / ≤1200 100 Note: Specification are subject to change without notice. 3 Website: www.kingtronics.com ■ COMMON DIMENSIONS Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 Electrical Characteristics Type SKT 3R-75PF5 SKT 3R-75PF7 SKT 3R-90PF5 SKT 3R-90PF7 SKT 3R-150PF5 SKT 3R-150PF7 DC spark-over voltage (100V/s) V Impulse spark-over voltage (1KV/us) V Impulse discharge current (10/1000us 300times) A Impulse discharge current (8/20us 10times) KA AC discharge current (50Hz 1s 5 times) A Holdover Voltage V Insulation resistance Ω Capacitance pF Transverse voltage durationns 75±25% ≤600 50 10 10 / ≥1010 <1.5 ≤200 90±25% ≤600 50 10 10 / ≥1010 <1.5 ≤200 150±20% ≤700 100 10 10 80 ≥1010 <1 ≤200 10 10 135 ≥1010 <1 ≤200 10 10 135 ≥1010 <1 ≤200 10 10 135 ≥1010 <1 ≤200 10 10 135 ≥1010 <1 ≤200 +30 Ⅰ ≤800 100 -40 Ⅱ ≤500 / Ⅰ ≤800 100 Ⅱ ≤600 / Ⅰ ≤900 100 Ⅱ ≤700 / SKT 3R-230PF5 SKT 3R-230PF7 230 SKT 3R-350PF5 SKT 3R-350P7 350±20% SKT 3R-470PF5 SKT 3R-470PF7 470±20% SKT 3R-600PF5 SKT 3R-600PF7 600±20% ≤1200 100 Note: Specification are subject to change without notice. 4