如果你用大的router bit（三四寸以上），有可能会跳闸。一般正常操作，不会上到峰值1600瓦的。我的2 1/4 hp router + 1 hp dust collector用在同一条15A从没跳过。我地下室自己配2条单独的15A。用电最大的是Dewal planer和shop vac。去买一个amp meter来量就知道了。不用猜测。When you use a router, don't try to take off too much material at once. It's unsafe, will dull your cutter head quickly, and draw higher current in the circuit. Do it multiple passes。我从没看过有原装20A插头的router。