Hardware Specification
Dimensions
Power Supply
The iSMA-B-FCU-HH and iSMA-B-FCU-HL versions are designed to work with the 230 V AC power supply. Each iSMA-B-FCU device is equipped with a built-in 6 A fuse protecting the controller and the connected 230 V AC equipment.
The iSMA-B-FCU-LL version is designed to work with the 24 V AC power supply. The device is equipped with a built-in 6 A fuse protecting the controller and the connected 24 V AC equipment.
Note: Total current for digital relay outputs O1-O4 cannot exceed 6 A.
WARNING! It is forbidden to use a fuse with current exceeding 6 A! Higher current may permanently damage the device and cause danger to the user and to the equipment!
24 V AC Power Supply for External Equipment
The iSMA-B-FCU-HH is equipped with a 24 V AC, 7 VA power supply output to supply an external equipment like sensors and actuators. This power supply uses a separate coil in the transformer. The 24 V AC power supply terminal connection is labeled L2, N2.
The iSMA-B-FCU-HL is equipped with a 24 V AC power supply output for thermal valves controlled by triac outputs and external devices like sensors and actuators. This power supply uses a separate coil in the transformer. The 24 V AC power supply terminal connection is labeled L2, N2. The total power consumption with thermal valves and external devices cannot exceed 7 VA (~0.3 A).
The iSMA-B-FCU-LL is equipped with a 24 V AC, 7 VA power supply output to supply the external equipment like sensors and actuators. This power supply uses a separate 24 V AC transformer. The external separate power supply terminal connection is labeled L2, N2.