Electrical Installation; Remote Sensing Connector - ITT POWERLOCK BOX Operation And Maintenance Manual

ELECTRICAL INSTALLATION

Caution – Electrical installations should only be carried out by a suitably qualified electrical
engineer. It is the responsibility of the installer and user to ensure that safe practices are
adopted.
Power cable connections – M12 threaded posts on the rear of the unit are for connecting
power cables fitted with cable lugs. Each position is marked on the back of the box,
E (Ground), N, L1, L2 & L3. The threaded posts have a spring washer and nut that should be
tightened to a torque of 27.5NM min. to 31.4NM max.
It is recommended that insulated spanners are used when making these connections.

REMOTE SENSING CONNECTOR

A 3 pole ITT Cannon Trident connector is located on the rear of the unit to provide a remote
sensing function.
The 3 pole connector mounted on the rear is connected to a micro-switch inside the unit that
is activated only when all connectors are in place and the unit is locked.
A Trident cable connector is provided with 2 loose contacts and an endbell strain relief. The
connector body has 4 cavities with 3 contacts wired to the switch. Using the 3 loose contacts
that are provided, the cable connector can be wired to suit your requirements, either 'Normally
Open' or 'Normally Closed' or both.
Full assembly instructions for this connector are shown in the Appendix.
Contact Position
A Common
B Normally Open
C Normally Closed
D Not used