Phase 3’s Powersafe Sequential Mating Box controls the connection sequence of incoming / outgoing high current cable connections. The sequence ensures that the Earth connection is made first and disconnected last. (FMLB- First Mate Last Break). The cable connectors are also color coded by wiring color standards to assure no confusion in setup.
Raise the Neutral cover to the fully open position. Repeat steps 2-4 until all 5 connectors (E, N, L1,L2 &L3) are connected.
NOTE: When covers are raised the previous connection cannot be disconnected without first closing the cover- for example when the Neutral cover is raised the Earth connector cannot be removed. SKIP Neutral connector step if you have purchased the 4 port Powersafe Box.
When the L3 connector is mated and turned fully clockwise to the locked position, take the key lock and turn the L3 lock clockwise. Turning this lock does two things:
a) It locks the L3 connector in place to prevent accidental disconnection under load and prevents further access to the unit.
b) It switches an integral micro switch, which can be used as a signal path for electrical protection device. A 3 pin connector plug is available which will plug onto the 3 pin connector on the rear of the unit, to allow for connection of such devices.
The disconnect sequence is reversed. Therefore the connectors h ave to be removed from Right to Left starting with the L3 connector. Here is the sequence of disconnection: