Attributes . 25 kA 208Y/120 V AC 50/60 Hz UL 489 || 25 kA 240 V AC 50/60 Hz UL 489 || 18 kA 480/277 V AC 50/60 Hz UL 489 || 18 kA 480 V AC 50/60 Hz UL 489 || 10 kA 600Y/347 V AC 50/60 Hz UL 489 . Names