Add $175.00 for FREE shipping
Kilowatt Hour Energy and Power Meter Fits Securely Inside Most Electrical Panels
eze System CC-WNC-3Y-208-MB WattNode Modbus Wattmeter, 120VAC
eze System CC-WNC-3Y-208-MB WattNode Modbus Wattmeter, 120VAC
eze System CC-WNC-3Y-208-MB WattNode Modbus Wattmeter, 120VAC
Item# 93504
Free shipping on orders over $175 - See Details


  • Kilowatt hour energy and power meter
  • Small form factor for installation in most electrical panels
  • Easy wiring with pluggable screw terminals
  • True RMS power measurement
  • Three power diagnostic LEDs

Essential Info

The eze System WattNode® Modbus Wattmeter is a kilowatt hour (kWh) energy and power meter that offers precision energy and power measurements in a compact package. It enables you to make power and energy measurements within existing electric service panels avoiding the costly installation of subpanels and associated wiring. It is designed for use in demand side management (DSM), sub-metering, and energy monitoring applications. The WattNode uses a half-duplex EIA RS-485 interface and communicate with the eZEio Controller (sold separately) over an RS-485 network. The standard baud rates are 9,600 and 19,200 baud, and rates from 1,200 to 38,400 baud can be configured. The meter uses the industry standard Modbus RTU (binary) communication protocol, allowing up to 127 devices per RS-485 subnet. The WattNode Wattmeter can auto-detect RS-485 polarity on properly biased networks, simplifying installation. It has three power diagnostic LEDs (one per phase) that flash green for positive power, red for negative power, and yellow for low power.

The WattNode Modbus Wattmeter measures the following:
  • True RMS Power - Watts (Phase A, Phase B, Phase C, Sum)
  • Reactive Power - VARs (Phase A, Phase B, Phase C, Sum)
  • Power Factor (Phase A, Phase B, Phase C, Average)
  • True RMS Energy - Watthours (Phase A, Phase B, Phase C, Sum)
  • Reactive Energy - VAR-hours (Sum)
  • AC Frequency
  • RMS Voltage (Phase A, Phase B, Phase C)
  • RMS Current (Phase A, Phase B, Phase C)
  • Demand and Peak Demand

  • Manuals/Software

    What's Included

  • 1x - WattNode Modbus Wattmeter 120VAC
  • 1x - Owner's Manual

  • Specifications

    Manufacturereze System
    Manufacturer Product No.CC-WNC-3Y-208-MB
    Dimensions5.63in x 3.34in x 1.5in
    Operating Temperature-22°F to 131°F
    Nominal VAC Line-to-Neutral120
    Nominal VAC Line-to-Line208 to 240
    Electrical Service Types1 Phase 2 Wire 120V with Neutral
    1 Phase 3 Wire 120V/240V with Neutral
    3 Phase 4 Wire Wye 120V/208V with Neutral
    Green LEDsPositive power
    Red LEDsNegative power
    Yellow LEDsLow power
    UL ListedYes
    cUL ListedYes
    Manufacturers Warranty5 years against defects in material and workmanship
    Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
    Manufacturer contact information: eze System, Inc., Tel: (888) 393-9330 Ext 110


    Related Items

    Sign-up for Exclusive Email offers 
    How to Order Track Your Package Shipping Returns Contact Us Customer Service Retail Store
    Getting Started Learning Center FAQ Dealers Customer Testimonials Affiliate Program
    About Us INSTEON Press Awards Employment Guarantees Security & Privacy
    Free Catalog Email Newsletter Forum RSS Site Map
    Have questions? Call us at 800-762-7846 (Mon-Fri 5am-7pm and Sat 6am-3pm PT) or send us a message
    Place your order by 3pm PT for same day shipping
    Copyright 1995-2014 SMARTHOME™
    Verisign Secure Site PayPal Acceptance Mark