WattNode® Plus

$479.00$680.00

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Description

The WattNode Plus is a kilowatt-hour (kWh) energy and power meter that communicates on a LonWorks network and measures 1, 2, or 3 phases with voltages from 120 to 600 Vac and currents from 5 to 6,000 amps in delta (line-to-line) and wye (line-to-neutral) configurations. For built-in data logging, see the WattNode Logger for LonWorks.

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Measurements

  • Net Real Energy: kilowatt-hours – kWh (Phase A, B, C, sum of all phases)
  • Positive Real Energy: kilowatt-hours (sum of all phases)
  • Bidirectional Real Power: Watts (Phase A, B, C, and sum of all phases)
  • Reactive Power: VARs (Phase A, B, C, and sum of all phases)
  • Power Factor: PF (Phase A, B, C, all phases)
  • Reactive Energy: kVAR-hours (All Phases)
  • AC Frequency
  • RMS Voltage: (Phase A, B, C)
  • Computed RMS Current: (Phase A, B, C)
  • Demand
  • Peak Demand

WattNode® Plus – Features

WNC FT10 WNC FT10-L RWNC FT10 Features
Logging intervals from 1 minute to 12 hours, allows logging up to 250 days of 15-minute data
Meets the accuracy requirements of the ANSI C12.1 standard
CT rated amps value locked and cannot be changed to prevent tampering
Measurement logging with Option L.
Supports LonWorks TP/FT-10 free topology twisted-pair network using Echelon’s® LonTalk® (ANSI/CEA-709.1-B-2002) network protocol.
LonMark 3.4 Certified
Small form factor for easy installation inside most electrical panels, see a sample installation diagram.
Pluggable screw terminals for easy wiring
0.5% accuracy nominal (see manual for details)
True RMS power even with leading or lagging power factor and chopped or distorted waveforms
Measure variable speed drive pumps and motors
Safe CT’s (current transformers), output 0.333 Vac at rated current.
  • Split core CTs for quick installation
  • Solid core CTs are less expensive and prevent tampering
  • Bus Bar CTs for high current applications (standard and custom sizes)
Assembled in USA, qualified under the Buy American provision in the American Recovery and Reinvestment Act of 2009 (ARRA).
Five year warranty

Safety Note

Warning: Hazardous Voltages – Only qualified personnel or licensed electricians should install the WattNode meter and current transformers.

WattNode® for LonWorks® – Specifications

These specifications apply to the following families of WattNode meters with the LonTalk® protocol:

Electrical

  • Line powered
  • Operating Voltage Range: –20% to +15% of the nominal rated voltage
  • Power Line Frequency: 50 or 60 Hz
  • CT Input: 0.333 Vac nominal, 0 to 0.5 Vac operating, 3 Vac maximum

Measurement Configurations

  • Single phase: two or three wire
  • Three phase, four wire wye
  • Three phase: three wire delta
  • Three phase: four wire delta

Communication

  • Protocol: Echelon’s® LonTalk® (ANSI/CEA-709.1-B-2002, EN 14908, GB/Z 20177.1-2006)
  • Transceiver: Echelon TP/FT-10
  • Bit Rate: 78 kbps
  • Maximum Nodes: 64 per subnet
  • Maximum Distance:
    • Free Topology: 500 meters
    • Bus Topology: 2700 meters
  • Maximum Stub Length:
    • Free Topology: Unlimited
    • Bus Topology: 3 meters

Accuracy

WattNode Plus for LonWorks

  • 0.5% nominal (see manuals for details)

WattNode Logger for LonWorks

  • 0.5% nominal (see manuals for details)
  • Clock accuracy: ± 2 minutes per year (battery backed)

WattNode Revenue for LonWorks

  • 0.5% nominal (see manual for details)
  • Meets accuracy requirements of the ANSI C12.1 standard when used with CCS CTs rated for IEEE C57.13 class 0.6 accuracy (see Revenue Grade CTs).
  • Clock accuracy: ± 2 minutes per year (battery backed) with Logger option.

Logging (Optional)

See WattNode Revenue Option L or WattNode Logger for LonWorks

  • Quantities Logged (one record)
    • Date and Time
    • Net Energy (A, B, C and Sum)
    • Reactive Energy (Sum)
    • Positive Energy (Sum)
    • Real and Reactive Power (A, B, C and Sum)
    • Voltage, Current and Power Factor (A, B, C)
    • Demand
  • Logging Intervals: 1 minute to 12 hours
  • Log Capacity: 24,000+ records

Regulatory

  • FCC Class B, EN 55022 Class B
  • UL and cUL Listed (UL 61010-1), file number E312220
  • CE Mark and RoHS Declaration of Conformity
  • Immunity: EN 61326: 2002 (Industrial Locations)

Environmental

  • Operating Temperature: –30° to 55°C
  • Humidity: Up to 90% RH (non-condensing)

Mechanical

WattNode-Case-Dimensions.png

Case Dimensions (Click on the image for a larger view.)

  • Enclosure:
    • High impact, ABS plastic
    • Flame Resistance Rating: 94V-0, IEC FV-0
    • Size: 6.1 × 3.35 × 1.5 in. (155 × 85 × 38.1 mm)
  • Weight: 10.4 oz (295 g)
  • Connectors: Euroblock style pluggable screw terminal blocks
  • Green: 22 to 12 AWG (1.0 to 3.2 mm), 600 V
  • Black: 22 to 12 AWG (1.0 to 3.2 mm), 300 V

WattNode® Plus for LonWorks® – Models & Pricing

     
Model – MSRP Model – MSRP Vac Line to Neutral Vac Line to Line Electrical Service Types Neutral Required
WNC-3Y-208-FT10
$479
RWNC-3Y-208-FT10
$545
120 208-240 Single-Phase 120V with neutral
Single-Phase 3-Wire 120/240V
3-Phase 4-Wire Wye 120/208V
Yes
WNC-3Y-400-FT10
$499
RWNC-3Y-400-FT10
$567
230 400 Single-Phase 230V with neutral
3-Phase 4-Wire Wye 230/400V
Yes
WNC-3Y-480-FT10
$499
RWNC-3Y-480-FT10
$567
277 480 Single-Phase 277V with neutral
3-Phase 4-Wire Wye 277/480V
Yes
WNC-3Y-600-FT10
$535
RWNC-3Y-600-FT10
$608
347 600 Single-Phase 347V with neutral
3-Phase 4-Wire Wye 347/600V
Yes
WNC-3D-240-FT10
$499
RWNC-3D-240-FT10
$567
See below 208-240 Single-Phase 208V (No neutral)
Single-Phase 240V (No neutral)
Single-Phase 3-Wire 120/240V
3-Phase 3-Wire Delta 208V–240V (No neutral)
3-Phase 4-Wire Wye 120/208V
 
WNC-3D-400-FT10
$535
RWNC-3D-400-FT10
$608
See below 400 3-Phase 3-Wire Delta 400V (No neutral)
3-Phase 4-Wire Wye 230/400V
 
WNC-3D-480-FT10
$535
RWNC-3D-480-FT10
$608
See below 400-480 3-Phase 3-Wire Delta 480V (No neutral)
3-Phase 4-Wire Wye 277/480V
 
  • Voltage Ranges listed in table are -20% to +15% of nominal. For 3D-240 models, this is -20% of 208 Vac (166 Vac) to +15% of 240 Vac (276 Vac). Operating Frequencies: 50/60 Hz
  • Delta models, RWNC-3D-240-FT10, RWNC-3D-400-FT10, RWNC-3D-480-FT10, WNC-3D-240-FT10, WNC-3D-400-FT10, and WNC-3D-480-FT10, work either with or without a neutral connection, but require a line-to-line voltage connection for operating power.
  • Option PT allows monitoring higher voltage services.

WattNode® for LonWorks® – Downloads

Datasheets

Manuals

Engineering Specifications

Support Information

Network Services Support

Firmware Upgrade

Option Specific Downloads

WattNode Plus Only

Option B – Emulates the WNB-xx-xxx-FT10 series of WattNode meters

Option BI – Emulates the WNB-xx-xxx-FT10 series of WattNode meters with Option I (Integer Output).

WattNode Plus and WattNode Logger Only

Option PT – Allows monitoring higher voltage services.

WattNode® for LonWorks® – Options

These options apply to the following families of WattNode meters for the LonTalk® protocol:

See Downloads Tab for options specific manuals, external interface files XIF, etc.

Data Logging Option L

This option is available on both standard and revenue accuracy models. Option L is for special applications where the LonTalk network is not available or not reliable. Order the logging option by adding a -L to the end of the part number. For example: WNC-3Y-208-FT10-L for standard models or RWNC-3Y-208-FT10-L for revenue models

Option L provides internal logging to non-volatile memory. Logging intervals can be selected from 1 minute to 12 hours. Memory allows logging of up to 250 days of 15-minute data. The logged values are:

  • Date and Time
  • Net Energy (A, B, C and Sum)
  • Reactive Energy (Sum)
  • Positive Energy (Sum)
  • Real and Reactive Power (A, B, C and Sum)
  • Voltage, Current and Power Factor (A, B, C)
  • Demand

See the WattNode Logger for LonWorks page for more information.

Pricing:
For revenue grade accuracy see WattNode Revenue for LonWorks Models.
For standard accuracy see WattNode Logger for LonWorks Models

Option CT

This option configures the network variable nciCtAmps to the specified CT rated current. The format is: Option CT=xxx where xxx is the rated current of the CT. See the WattNode for LonWorks – Option CT page for details. The nciCtAmp variable can be field configured or overridden except on revenue models, which are locked and cannot be changed in the field.

Option B

This option is available only with the WattNode Plus.
If you need a WattNode meter that behaves like the old WNB series models (model numbers WNB-xx-xxx-FT10), then order a

WNC-xx-xxx-FT10 Opt B

The Option B WattNode models are very similar to the original WNB series WattNode Plus models, but with a few changes:

  • New program ID: 8:00022:1500:0A04:05. Because there are some hardware changes, LonMaker® requires a new program ID.
  • Energy and time of day are stored to non-volatile memory every 5 seconds. The old version stored these every 20 seconds.
  • The energy log has been removed (see our WattNode Logger for LonWorks if you need logging). The nviLogRequest and nvoLogData variables still exist, but do nothing.
  • The network variable list is identical to the original WNB series WattNode Plus
  • Firmware Version 3.03
  • Downloads

Option BI

This option is available only with the WattNode Plus.
If you need a WattNode meter that behaves like the old WNB series models the integer output Option (models numbers WNB-xx-xxx-FT10), then order a

WNC-xx-xxx-FT10 Opt BI

The Option BI WattNode models are very similar to the original WNB series WattNode Plus models with integer outputs, but with a few changes:

  • New program ID: 9:00022:1500:0A:04:0B. Because there are some hardware changes, LonMaker requires a new program ID.
  • New XIF (external interface file)
  • Energy and time of day are stored to non-volatile memory every 5 seconds. The old version stored these every 20 seconds.
  • The energy log has been removed (see our WattNode Logger for LonWorks if you need logging). The nviLogRequest and nvoLogData variables still exist, but do nothing.
  • The network variable list is identical to the original WNB series WattNode Plus with option I (Integer Output).
  • Firmware version 3.13
  • Downloads

Option PT

This option is available only with the WattNode Plus and WattNode Logger models.

Option PT improves support for potential transformers (PTs), making it easier to use WattNode for LonWorks meters with medium voltage services. Specifically, Option PT adds a configuration property UCPTptRatio which configures the ratio of the external PT, allowing the meter to automatically scale the voltage, power, and energy readings.