| Types |
Serie |
Key características |
| Retardo de tiempo |
820 Series |
Has 10 functions, 8 time ranges |
| Voltage Sensing |
831 Series |
Addresses over and under voltage conditions |
| Detección de corriente |
841 Series |
Switches in over and under current conditions |
| Estado Sólido |
861 Series |
Has internal heat sink and snubber |
| Estado Sólido |
861H Series |
Provides Class 1, Division 2 rating |