SKT - Surge Arresters 3-Electrode Ceramic Surge Arrester COMMON DIMENSIONS PICTURE Electrical Characteristics 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 Capacitanc e pF Transvers e voltage durationn s 75±25% ≤600 50 5 5 / ≥10 10 <1.5 ≤200 90±25% ≤600 / ≥10 10 <1.5 ≤200 SKT-3R-105A 150±20% ≤700 10 <1 ≤200 SKT-3R-230A 230 Type SKT-3R-75A SKT-3R-90A SKT-3R-350A SKT-3R-470A SKT-3R-600A 50 100 +30 Ⅰ ≤800 100 -40 Ⅱ ≤500 / Ⅰ ≤800 100 Ⅱ ≤600 / I ≤900 100 Ⅱ ≤700 / 350±20% 470±20% 600±20% ≤1200 100 5 5 5 5 80 ≥10 5 5 80 ≥10 10 <1 ≤200 5 5 80 ≥10 10 <1 ≤200 5 5 80 ≥10 10 <1 ≤200 5 5 80 ≥10 10 <1 ≤200 Note: Specification are subject to change without notice. Website: www.kingtronics.com Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 1 SKT - Surge Arresters COMMON DIMENSIONS Electrical Characteristics Type SKT-3R-75AL 1 SKT-3R-75AL 2 SKT-3R-75AL 3 SKT-3R-75AL 4 SKT-3R-90AL 1 SKT-3R-90AL 2 SKT-3R-90AL 3 SKT-3R-90AL 4 SKT-3R-150AL 1 SKT-3R-150AL 2 SKT-3R-150AL 3 SKT-3R-150AL 4 SKT-3R-230AL 1 SKT-3R-230AL 2 SKT-3R-230AL 3 SKT-3R-230AL 4 SKT-3R-350AL 1 SKT-3R-350AL 2 SKT-3R-350AL 3 SKT-3R-350AL 4 SKT-3R-470AL 1 SKT-3R-470AL 2 SKT-3R-470AL 3 SKT-3R-470AL 4 SKT-3R-600AL 1 SKT-3R-600AL 2 SKT-3R-600AL 3 SKT-3R-600AL 4 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 Capacitanc e pF Transvers e voltage durationn s 75±25% ≤600 50 10 10 / ≥10 10 <1.5 ≤200 90±25% ≤600 50 10 10 / ≥10 10 <1.5 ≤200 150±20% ≤700 100 10 10 80 ≥10 10 <1 ≤200 10 10 135 ≥10 10 <1 ≤200 10 10 135 ≥10 10 <1 ≤200 10 10 135 ≥10 10 <1 ≤200 10 10 135 ≥10 10 <1 ≤200 +30 Ⅰ ≤800 100 -40 Ⅱ ≤500 / Ⅰ ≤800 100 ≤600 / Ⅰ ≤900 100 Ⅱ ≤700 / 230 350±20% Ⅱ 470±20% 600±20% ≤1200 100 Note: Specification are subject to change without notice. Website: www.kingtronics.com Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 2 SKT - Surge Arresters COMMON DIMENSIONS Electrical Characteristics Type SKT-3R-75AF 1 SKT-3R-75AF 2 SKT-3R-75AF 4 SKT-3R-90AF 1 SKT-3R-90AF 2 SKT-3R-90AF 4 SKT-3R-150AF 1 SKT-3R-150AF 2 SKT-3R-150AF 4 SKT-3R-230AF 1 SKT-3R-230AF 2 SKT-3R-230AF 4 SKT-3R-350AF 1 SKT-3R-350AF 2 SKT-3R-350AF 4 SKT-3R-470AF 1 SKT-3R-470AF 2 SKT-3R-470AF 4 SKT-3R-600AF 1 SKT-3R-600AF 2 SKT-3R-600AF 4 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 Holdove r Voltage V Insulation resistance Ω Capacitanc e 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 +30 230 -40 350±20% 470±20% 600±20% Ⅰ ≤800 100 Ⅱ ≤500 / Ⅰ ≤800 100 Ⅱ ≤600 / Ⅰ ≤900 100 Ⅱ ≤700 / ≤1200 100 Note: Specification are subject to change without notice. Website: www.kingtronics.com Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 3 SKT - Surge Arresters COMMON DIMENSIONS Electrical Characteristics Type 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 Capacitanc e pF Transvers e voltage durationn s SKT 3R-75PF5 SKT 3R-75PF7 75±25% ≤600 50 10 10 / ≥10 10 <1.5 ≤200 SKT 3R-90PF5 SKT 3R-90PF7 90±25% ≤600 50 10 10 / ≥10 10 <1.5 ≤200 150±20% ≤700 100 10 10 80 ≥10 10 <1 ≤200 10 10 135 ≥10 10 <1 ≤200 10 10 135 ≥10 10 <1 ≤200 10 10 135 ≥10 10 <1 ≤200 10 10 135 ≥10 10 <1 ≤200 SKT 3R-150PF5 SKT SKT 3R-230PF5 SKT 3R-230PF7 +30 Ⅰ ≤800 100 -40 Ⅱ ≤500 / Ⅰ ≤800 100 230 SKT 3R-350PF5 SKT 3R-350P 7 350±20% SKT 3R-470PF5 SKT 3R-470PF7 470±20% SKT 3R-600PF5 SKT 600±20% Ⅱ ≤600 / Ⅰ ≤900 100 Ⅱ ≤700 / ≤1200 100 Note: Specification are subject to change without notice. Website: www.kingtronics.com Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 4