Outline and installation
sizeFCQ3W-63, FCQ3WZ-63, FCQ3YZ-63 ~ 225, FCQ3-100 ~ 1250, FCQ3Y-100 ~ 225 shape and installation dimensions

FCQ3W-63, FCQ3WZ-63 FCQ3YZ, FCQ3, FCQ3Y shape and installation dimensions table

FCQ3NZ-63/100/225, FCQ3N-100 ~ 1250 appearance and installation dimension.

FCQ3NZ-63 ~ 225, FCQ3N-100 ~ 1250 Outline and installation size

Controller Functional Description
        Power system, single-chip detection of commonly used power supply (NA, NB, NC) whether there is electricity and the lack of phase, if all normal, the system will transfer the load to the common power supply, if not normal, according to controller program table corresponds to the situation treatment.
        Automatic state, commonly used in power supplies, standby power is normal, is commonly used power operational, standby power supply does not start. System load by the common power supply.
        Commonly used in power is not normal, the device will detect the current preset status (manual, automatic, self-multiplexing) are normal and standby power to determine conversion, start the standby power system load is powered by the standby power. The controller program are shown in Table.

Controller program table

Operation and connection
Qualify, according to the actual design of the circuit need to pick the good common power supply and standby power (&, lt;, /SPAN>or generator) into the zero line. In order to ensure safe use, must transfer switch backplane reliable grounding, two circuit breakers outlet side of the parallel phase sequence must be consistent.
When the circuit breaker for the three-pole, NN, NR (zero line) received a transfer switch to N (neutral) terminals and securely connected to the neutral line of the grid wire cross-sectional area ≥ 2.5mm2, otherwise not working properly.
Change-over switch operating handle, as the emergency handle operating. (But must press on the control mode in the "breaking" the key is breaking state), in order to use the operating handle.
The user may be cited indicator terminals to facilitate the observation, refer to the wiring shown in Figure.