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Center Break Switches

Disconnect Switch Designs for Low Profile Applications

Southern States offers a complete line of center break group operated disconnect switches. While these switches require the largest phase spacing of any switch type, they do offer advantages in low profile applications. These designs can be supplied standard or in “V” configurations, offering utilities flexibility based on their unique substation or transmission applications.
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  • Meet all ANSI standards
  • Low operating effort
  • Minimal maintenance
  • Suitable designs for horizontal upright, vertical, or underhung mounting
  • 6 insulators per three phase switch
Maximum Voltage / BILPhase Spacing1200A2000A3000A4000A5000A*
15.5 kV / 110 kV30 inEC-1, EC-1V, EC-2V,
ECB-T, or CBL-T
EC-1, EC-1V,
EC-2V, or ECB-T		EC-1, EC-1V,
EC-2V, or Cole Type P
EC-1, EC-1V, or
Cole Type P
27 kV / 150 kV36 inEC-1, EC-1V, EC-2V,
ECB-T, or CBL-T
EC-1, EC-1V,
EC-2V, ECB-T, or
Cole Type P
EC-1, EC-1V,
EC-2V, or Cole Type P
EC-1, EC-1V, or
Cole Type P
38 kV / 200 kV48 inEC-1, EC-1V, EC-2V,
ECB-T, or CBL-T
EC-1, EC-2, EC-1V,
EC-2V, ECB-T, or
Cole Type P		EC-1, EC-1V, EC-2,
EC-2V, or Cole Type P 		EC-1, EC-1V, or
Cole Type P
48.3 kV / 250 kV60 inEC-1, EC-1V, EC-2V,
ECB-T, or CBL-T
EC-1, EC-2, EC-1V,
EC-2V, ECB-T, or
Cole Type P		EC-1, EC-1V, EC-2,
EC-2V, or Cole Type P
EC-1, EC-1V, or
Cole Type P
72.5 kV / 350 kV 72 inEC-1, EC-1V, EC-2V,
ECB-T, or CBL-T
EC-1, EC-2, EC-1V,
EC-2V, ECB-T, or
Cole Type P		EC-1, EC-1V, EC-2,
EC-2V, or Cole Type P
EC-1, EC-1V, or
Cole Type P
123 kV / 550 kV108 in EC-1, EC-1V,
EC-2V, or Cole Type P		EC-1, EC-2, EC-1V,
EC-2V, or Cole Type P		EC-1, EC-1V, EC-2,
EC-2V, or Cole Type P
EC-1, EC-1V, or
Cole Type P
145 kV / 650 kV132 in EC-1, EC-1V,
EC-2V, or Cole Type P		EC-1, EC-2, EC-1V,
EC-2V, or Cole Type P		EC-1, EC-1V, EC-2,
EC-2V, or Cole Type P
EC-1, EC-1V, or
Cole Type P
170 kV / 750 kV156 inEC-1, EC-1V,
EC-2V, or Cole Type P		EC-1, EC-2, EC-1V,
EC-2V, or Cole Type P		EC-1, EC-1V, EC-2,
EC-2V, or Cole Type P
EC-1, EC-1V, or
Cole Type P
245 kV / 1050 kV216 inEC-1, EC-1V,
EC-2V, or Cole Type P		EC-1, EC-1V, EC-2,
EC-2V, or Cole Type P
EC-1, EC-1V, EC-2,
EC-2V, or Cole Type P
EC-1, EC-1V, or
Cole Type P
362 kV / 1050 kV216 inEC-1V or EC-2VEC-1, EC-1V, or EC-2V EC-1, EC-1V,
EC-2, or EC-2V
EC-1V
362 kV / 1300 kVContact FactoryEC-1V or EC-2VEC-1, EC-1V, or EC-2V EC-1, EC-1V,
EC-2, or EC-2V
EC-1V

*For > 5000A, contact factory

Application Guide