|Phase||Single and Three Phase|
|Rated Current||20, 30, 40, 50, 75, 100A (to be specified)|
|Rated Voltage||100 to 120VAC, 200 to 240VAC (selectable by terminals)|
|Input Resistance||100 (4 to 20mADC), 25 (1 to 5VDC)|
The thyristor element is protected by melting of the rapid fuse for short-circuit of load, and by gate-off for over-current. For models with a cooling fan built-in, alarm is activated and output is stopped for abnormal heat-sink temperature.