iSMA-B-FCU Hardware User Manual
www.ismacontrolli.com
DMP242en | 1st Issue rev. 3 | 02/2022
page 11 of 53
Figure 5. iSMA-B-FCU-HL diagram of terminals and internal connections
4.3.3 iSMA-B-FCU-LL
The iSMA-B-FCU-LL hardware version has a low voltage power supply and triac outputs
(24 V AC). The triac outputs are connected to power supply terminals. The maximum
current for each of the triac outputs is 0,5 A. The maximum power used by the external
equipment connected to the
24 V
terminals (L2, N2) cannot exceed
7 VA
in total.