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AUTOM ATIC CONTROL U N ITS , OM D20 0 A N D 3 0 0
AU TO M AT I C CO N T R O L U N I T S , O M D 2 0 0 -3 0 0
—
5 Connecting
Only an authorised electrician may perform the electrical installation and maintenance
of automatic transfer switches. Do not attempt any installation or maintenance actions
when an automatic transfer switch is connected to the electrical mains. Before starting
work, make sure that the switch is de-energised.
—
5.1
Power circuit
Operating voltage:
Main voltage:
208 Vac - 480 Vac
(±20 %)
Phase voltage:
120 Vac - 277 Vac
(±20 %)
Frequency:
50 Hz - 60 Hz
(±10 %)
Phase setting with DIP switches: Single phase or Three-phase (default).
OMD200:
If the automatic control unit OMD200 is used without neutral (three-phase connection), the external
transformer must be used. The transformer will drop the main voltage to the phase voltage level.
Neutral has to be connected when using a single phase connection.
OMD300:
Neutral must always be connected.
Содержание OMD200
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