Under the MODBUS command mode, it can support up to 64 devices in parallel. Under the "Delay" command ,the maximum delay is 255 seconds. Standby current (all relays closed) 12MA, 1 relay open 40MA, 2 relays open 67MA, 3 relays open 95MA,4 relays open 121MA,5 relays open 147MA,6 relays open 173MA, 7 relays open 198MA,8 relays open 223MA.
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