Overview of EL17xx-00xx digital input terminals

EL1702
Two-channel digital input terminals 120...230 V AC, 10 ms input filter

EL1702-0020
Two-channel digital input terminals 220 V DC, 3 ms input filter

EL1712
Two-channel digital input terminals 120 V AC/DC, 10 ms input filter

EL1712-0020
Two-channel digital input terminals 120 V DC, 3 ms input filter

EL1722
Two-channel digital input terminals 120...230 V AC, 10 ms, without power contacts