Harrington Hoists and Cranes TNER Theater Hoist - Manual (Page 14)

Figure 3-6 Cable Support Assembly
3.5.8 Connection to Electrical Power Source - The red, blue and black wires of the Power Supply Cable
should be connected to an Electric Power Disconnect Switch or Circuit Breaker. This connection
should be made so that the hoist is phased properly. Refer to Section 3.6.10 for instructions on how to
check for correct power supply phase connection.
3.5.9 Fuse/Breaker Capacity -The hoist's power supply should be equipped with current overload protection
such as fuses, which should be selected for 110% to 120% of total listed full load amperage, and
should be dual element time-delay fuses. Refer to the motor nameplate for the full load amperage
draw.
3.5.10

Grounding - An improper or insufficient ground connection creates an electrical
shock hazard when touching any part of the hoist or trolley. In the Power Supply Cable the ground wire
will be either Green with Yellow stripe or solid Green. It should always be connected to a suitable
ground connection.
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