WattNode^® MODBUS Typical Installation

The illustration below shows a typical installation of a WattNode ^® MODBUS measuring three phases and connected to a MODBUS network.

Necessary Installation Items:

• WattNode MODBUS
• Current Transformers: Typically one current transformer is required for each phase you are measuring. See Application Notes for non-standard configurations.
• MODBUS Network devices and software

Miscellaneous Installation Items:

• Mounting: Screws (#8 sheet metal screws recommended) or Velcro
• Circuit Protection: One of the following
  • Circuit breakers
  • Fuses (see Application Note: Fusing the WattNode) and a disconnect switch
• Line Voltage Wire (For the voltage inputs): 12-14 AWG (stranded recommended), THWN, THHN, MTW, or AWM.
• MODUS Communication Wire: 16-22 AWG (solid or stranded), twisted, optionally shielded.

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