SPARE PART FOR TRANSFORMER; COMPONENT: VACUUM SWITCH MODULE ; CURRENT: 600 A; VOLTAGE: 15,5 KV; MOMENTARY CURRENT (RMS): 20 KA; IMPULSE WITHSTAND OPEN-GAP (BIL): 110 KV; IMPULSE WITHSTAND LINE-TO-GROUND (BIL) 150 KV; MAXIMUM 60 CYCLES WITHSTAND LINE-TO-GROUND DRY (ONE MINUTE): 112 KV; MAXIMUM 60 CYCLES WITHSTAND LINE-TO-GROUND WET (TEN SECONDS): 55 KV; FAULT INTERRUPTING RATING (AM PERES, SYMMETRIC): 4 KA; BRAND 1: JOSLYN CLARK; MODEL 1: HI VOLTAGE VBT