Outdoor high voltage vacuum circuit breaker of TZW10 – 12 (hereinafter referred to as circuit breaker) is an outdoor power distribution equipment with 12KV nominal voltage and 50Hz three phase current. It is mainly applied to power distribution system like rural power grid, city power grid, railway, mine, harbor, etc. And it is specially used for switching and protecting of outdoor overhead lines, load current, overcurrent and short circuit current in outage and closing power system.
TZW10 – 12 (G) / 630 (1250) – 12.5 / 16 / 20
T: enterprise code (TENPRO Power Technology)
ZW: outdoor vacuum circuit breaker
10: design serial number
12: nominal voltage (KV)
(G): isolated blade
630 (1250): rated current (A)
12.5 / 16 / 20: rated short circuit breaking current (KA)
Main technical parameters
Note: When the product is used more than 1000m, the insulation level should be corrected.
Drawing and dimensions
5.insulating conductive rod
7.opening and closing pointer
8.stored energy pointer
12.stored energy crank
13.brand of operating mechanism
14.manual switching – on ring
15.manual opening ring
Note: The data in brackets is based on the built-in double PT box size.