SKT - Surge Arresters 2-Electrode Ceramic Surge Arrester COMMON DIMENSIONS PICTURE Electrical Characteristics Impulse discharge current (8/20us 10times) KA 5 AC discharge current (50Hz 1s 5 times) A Holdove r Voltage V Insulation resistanc e Ω Capacitanc e pF ≤600 Impulse discharge current (10/1000us 300times) A 50 5 / ≥10 10 <1.5 90±25% ≤600 50 5 5 / ≥10 10 <1.5 SKT-2R-150A 1 SKT-2R-150D 150±20% ≤700 100 5 5 80 ≥10 10 <1 SKT-2R-230A 1 SKT-2R-230D 230 ≤800 100 5 5 135 ≥10 10 <1 SKT-2R-250A 1 SKT-2R-250D 250±20% ≤800 100 5 5 135 ≥10 10 <1 SKT-2R-350A 1 SKT-2R-350D 350±15% ≤800 100 5 5 135 ≥10 10 <1 DC spark-over voltage (100V/s) V Impulse spark-over voltage (1KV/us) V SKT-2R-75A 1 SKT-2R-75D 75±25% SKT-2R-90A 1 SKT-2R-90D Type +30 -40 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 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 SKT-2R-75A 2 75±25% ≤600 50 5 5 / ≥10 10 <1.5 SKT-2R-90A 2 90±20% ≤600 50 5 5 / ≥10 10 <1.5 SKT-2R-150A 2 150±20% ≤700 100 5 5 80 ≥10 10 <1 ≤800 100 5 5 135 ≥10 10 <1 Type +30 SKT-2R-230A 2 230 -40 SKT-2R-350A 2 350±20% ≤800 100 5 5 135 ≥10 10 <1 SKT-2R-470A 2 470±20% ≤900 100 5 5 135 ≥10 10 <1 SKT-2R-600A 2 600±20% ≤1200 100 5 5 135 ≥10 10 <1 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-2R-75A5 SKT-2R-75A5L SKT-2R-75A6L SKT-2R-90A5 SKT-2R-90A5L SKT-2R-90A6L SKT-2R-150A 5 SKT-2R-150A 5L SKT-2R-150A 6L SKT-2R-230A 5 SKT-2R-230A 5L SKT-2R-230A 6L SKT-2R-350A 5 SKT-2R-350A 5L SKT-2R-350A 6L SKT-2R-470A 5 SKT-2R-470A 5L SKT-2R-470A 6L SKT-2R-600A 5 SKT-2R-600A 5L SKT-2R-600A 6L SKT-2R-800A 5 SKT-2R-800A 5L SKT-2R-800A 6L 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 resistanc e Ω Capacitance pF 75±25% ≤600 100 10 10 / ≥1010 <1.5 90±25% ≤600 100 10 10 / ≥1010 <1.5 150±20% ≤700 100 10 10 80 ≥1010 <1 ≤800 100 10 10 135 ≥1010 <1 350±20% ≤800 100 10 10 135 ≥1010 <1 470±20% ≤900 100 10 10 135 ≥1010 <1 600±20% ≤1200 100 10 10 135 ≥1010 <1 800±20% ≤1400 100 10 10 135 ≥1010 <1 230 +30 -40 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 SKT-2R-90K DC spark-over voltage (100V/s) V Impulse spark-over voltage (1KV/us) V Impulse discharge current (10/1000us 300times) A 90±25% ≤600 50 SKT-2R-230K 230 +30 -40 ≤800 100 SKT-2R-350K 350±20% ≤800 100 Impulse discharge current (8/20us 10times) KA 10 5 10 5 10 5 AC discharge current (50Hz 1s 5 times) A 10 5 10 5 10 5 Holdove r Voltage V Insulation resistanc e Ω Capacitanc e pF / ≥1010 <1.5 135 ≥1010 <1 135 ≥1010 <1 Note: Specification are subject to change without notice. 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 Holdove r Voltage V Insulation resistanc e Ω Capacit ance pF SKT-2R-90 E1 L 90±25% ≤600 100 20 20 / ≥10 10 ≤1.5 SKT-2R-150 E1 L 150±20% ≤700 100 20 20 80 ≥10 10 ≤1 SKT-2R-230 E1 L 230±20% ≤800 100 20 20 150 ≥10 10 ≤1 150 ≥10 10 ≤1 ≤1 ≤1 SKT-2R-350 E1 L 350±20% ≤800 100 20 20 SKT-2R-470 E1 L 470±20% ≤900 100 20 20 150 ≥10 10 SKT-2R-600 E1 L 600±20% ≤1200 100 20 20 150 ≥10 10 Note: Specification are subject to change without notice. Website: www.kingtronics.com Email: [email protected] Tel: (852) 8106 7033 Fax: (852) 8106 7099 4