♦ 25,000 amperes, RMS, symmetrical and 620 MVA when certain non-S&C-manufactured current-limiting fuses are used, having a rated maximum interrupting current of at least 25,000 amperes, RMS, symmetrical and limiting the instantaneous peak let-through current to less than 36,000 amperes.PowerGATE™ company switch enclosures feature a compact design, accommodating both Cam-type or IEC 60309 pin & sleeve and lug outputs in one wiring chamber. Rating is 9,400 amperes RMS, symmetrical (405 MVA) for all other applications. ♣ Applicable to solidly grounded-neutral systems only, with fuses connected by single-conductor, concentric-neutral-type cable to a transformer(s). ♠ SMU-20 Fuse Units are available in ratings through 200K amperes as well as 200E amperes ♥ Consult the nearest S&C Sales Office for 50-hertz ratings. (On mobile, swipe left for remaining ratings information.) Fuse Type
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