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Cabinet Assembly Instructions
This notice provides instructions, which you must follow to insure compliance with the CE
Low Voltage Directive when installing your control panel.
To comply with the CE Low Voltage Directive, you must use a 12V, 20VA transformer approved by a CE-notified
body. A typical transformer, as described in this document, provides one terminal block for 230V mains wiring and a
separate terminal block with an integral 2.5A, 250V normal blow fuse for 12V control panel wiring.
Mounting the Mains Transformer
Mount the mains transformer inside the control panel enclosure as per the mounting instructions provided with this
transformer. Position this transformer so that any exposed metal energized to the mains voltage, such as the mains
screw terminals, un-insulated mains wiring, etc., is located no less than 0.4" (10mm) from the control panel PCB or
from the walls of the control panel enclosure.
Earth Ground Connections
The control panel is supplied with two (2) ground screws that must be installed. Refer to the diagram when making
mains and earth ground connections.
1. Install one ground screw in the hole on the bottom lip of the control panel cabinet door and secure with a
supplied hex nut.
2. Install the other ground screw in the hole on the lower left-hand side of the cabinet and secure with a supplied
hex nut.
3. Assemble the door to the cabinet, then bend the door's hinge tangs to prevent removal of the door from the
cabinet.
4. Route the mains and earth ground wires into the cabinet through the bottom left-hand knockout as shown.
Anchor these wires to the lowest tie wrap loop on the left-hand side-wall of the cabinet using the tie wrap
provided.
NOTES:
1. Use wiring, strain reliefs, etc. as required to meet national and/or local electrical codes.
2. Use a disconnect circuit breaker that operates on both poles of the mains circuit which supplies power to
the control panel.
3. Connect to an overcurrent-protected branch circuit.
5. Connect the ground wires as follows:
a. Wrap the incoming ground wire around the ground screw on the cabinet wall and secure with a supplied hex
nut (see diagram Detail A).
b. Wrap two additional 1.0mm green/yellow wires (not supplied) to the cabinet wall ground screw and secure
with a hex nut (see diagram Detail A).
c.
Connect one of the separate green/yellow ground wires from the cabinet wall ground screw to the door
ground screw, securing it with a hex nut (see diagram Detail B).
d. Connect the other green ground/yellow wire from the cabinet wall ground screw to the earth ground terminal
on the control panel PC board.
CE Low Voltage Directive
S E C T I O N
1 1
11–1
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