Installation Instructions; Preparation; List Of Materials; Mounting The Enclosure - Leviton Mini Meter MMU Manuel D'installation

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INSTALLATION INSTRUCTIONS

4.1

Preparation

1. Verify the model number and electrical specifications of the device being
installed to confirm they are appropriate for the intended electrical service (see
Section 3).
2. Consult local codes for any possible permits or inspections required before
beginning electrical work.
3. Ensure the conduit for the installation is flexible and non-metallic. For outdoor
applications conduit and conduit fittings must be rated UL Type 4X for outdoor
enclosures. Failure to use the appropriate conduit impairs the degree of
equipment protection.
4. Make sure all tools to be used during installation have proper insulation
ratings.
5. Look inside the MMU and electrical panel for possible exposed wire, broken
wire, damaged components or loose connections.
4.2

List of Materials

• Mini Meter MMU and associated mounting materials.
• Line 1, Line 2, and Neutral hook-up wires as needed for the electrical service.
Wires must be 18 AWG or larger and insulated for 300 VAC min
(NOT INCLUDED).
• Current Transformers (CTs): This product is designed for use with Leviton CTs;
see Section 3.2 for details (NOT INCLUDED IN ALL MODELS).
• Flexible, non-metallic conduit and fittings; UL Type 4X for outdoor applications
(NOT INCLUDED).
4.3

Mounting the Enclosure

4.3.1 Mounting Location

• MMUs require a switch or circuit breaker as part of the building installation.
• The switch or circuit breaker must be marked as the disconnecting device for
the MMU.
• It is recommended that the MMU be mounted near the disconnecting device in
an area with adequate ventilation.
• The MMU should not be positioned in a manner that makes it difficult to operate
the disconnecting device.
• Ensure that the CT and voltage lead lengths (and conduit lengths) are capable
of reaching the enclosure from the breaker panel.
• If a suitable mounting location near the panel cannot be found, additional inline
fuses or circuit breaker may be required in accordance with NEC regulations.
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