Power Wiring Connections; Safety Warnings; Ground Wiring Connections - Chamberlain H Owner's Manual

To reduce the risk of SEVERE INJURY or DEATH:
• ANY maintenance to the operator or in the area near the
operator MUST NOT be performed until disconnecting the
electrical power and locking-out the power via the operator
power switch. Upon completion of maintenance the area MUST
be cleared and secured, at that time the unit may be returned
to service.
• Disconnect power at the fuse box BEFORE proceeding.
Operator MUST be properly grounded and connected in
accordance with local electrical codes. The operator should be
on a separate fused line of adequate capacity.

POWER WIRING CONNECTIONS

1. Connect power wires coming from the main to the captive
terminal block in the electrical box enclosure marked with the
label. All power and control wiring must be run in separate
conduit in accordance with local electrical codes.
2. Be sure to run all power wires through the conduit hole in the
electrical box enclosure marked with the label shown below.
NOTE: Must use #14 AWG or thicker wire for power wiring.
ON THREE PHASE MACHINES ONLY: Incorrect phasing of the
power supply will cause the motor to rotate in the wrong
direction. To change motor rotation, exchange incoming power
leads L1 and L2.

GROUND WIRING CONNECTIONS

1. Connect earth ground to the chassis ground screw in the
electrical box enclosure.
2. Use same conduit entry into the electrical box as the power
wiring.
IMPORTANT NOTE: This unit must be properly grounded. Failure
to properly ground this unit could result in electric shock and
serious injury.
WARNING
P O W E R W I R I N G C O N N E C T I O N S
WARNING WARNING
AVERTISSEMENT
AVERTISSEMENT
ADVERTENCIA
ADVERTENCIA
• ALL electrical connections MUST be made by a qualified
individual.
• DO NOT install ANY wiring or attempt to run the operator
without consulting the wiring diagram. We recommend that
you install an optional reversing edge BEFORE proceeding with
the control station installation.
• ALL power wiring should be on a dedicated circuit and well
protected. The location of the power disconnect should be
visible and clearly labeled.
• ALL power and control wiring MUST be run in separate
conduit.
Single Phase Power Wiring
Line Power
115/230 Vac
Single Phase
Three Phase Power Wiring
Line Power
208/230/380/460/575 Vac
Three Phase
10
Hot
Neutral
Ground
Phase 1
Phase 2
Phase 3