4 and 8 solid state relay modules with a NPN - PNP control

Family of 4 and 8 relay modules with a NPN - PNP direct voltage control signal.
The versions for alternate voltage loads have a double SCR output, a ZERO CROSSING striking system and a protection varistor.
The modules for direct voltage load have a SCR output.
| Code | Part Number | Features | Dim. WxHxP |
| 1706 | ET-MS04/24DC/60DC/PF | drive signal 24Vdc, output up to 60Vdc/3 | 69x92x60 |
| 1707 | ET-MS04/24DC/240AC/PF | drive signal 24Vdc, output up to 240Vac/3 | 69x92x60 |
| 1704 | ET-MSZ04/24DC/60DC/PF | pluggable module, drive signal 24Vdc, output up to 60Vdc/3 | 69x92x85 |
| 1705 | ET-MSZ04/24DC/240AC/PF | pluggable drive signal 24Vdc, output up to 240Vac/3 | 69x92x85 |
| 1728 | ET-MS08/24DC/60DC/FK14/PF | drive signal 24Vdc, output up to 60Vdc/3 | 137x92x60 |
| 1729 | ET-MS08/24DC/240AC/FK14/PF | drive signal 24Vdc, output up to 240Vac/3 | 137x92x60 |
| 1730 | ET-MSZ08/24DC/60DC/FK14/PF | pluggable module, drive signal 24Vdc, output up to 60Vdc/3 | 137x92x85 |
| 1731 | ET-MSZ08/24DC/240AC/FK14/PF | pluggable drive signal 24Vdc, output up to 240Vac/3 | 137x92x85 |