Panel Meter


The Panel Meter from Jetlun is a highly accurate, din-rail, three-phase, AC energy metering solution that can meter up to 3000A. There are two models: (1) Support ZigBee communications (model RD77720 Open System/ RD77724 Closed System); and (2) Support HomePlug communications (model RD71220 Open System/ RD71224 Closed System). An open system requires the Panel Meter to be installed inside an external enclosure. A closed system does not require the Panel Meter to be installed inside an external enclosure.

The Panel Meter can measure both consumption and generation. It can be used for measurement and verification (M&V), benchmarking, and sub-metering. The Panel Meter is a low cost wireless metering solution that is ideal for retrofits and can be used towards Energy Star certification, LEED certification, NABERS certification and ISO 15000 certification.


  • 3-phase real-time energy metering
  • Supports net-metering
  • Easy installation within minutes by a certified electrician
  • Highly accurate metering solution
  • Over-the-Air (OTA) upgrade feature
  • Intuitive LED indicators for easy troubleshooting
  • Used for baseline audits, efficiency verification and compliance reporting
  • Specifications

    Standard Compliance IEEE 802.15.4 (model RD77720/ RD77724) or IEEE 1901.2 (model RD71220/ RD71224)
    Interface 4x screw-type terminal blocks, 3x spring-type terminal blocks
    LEDs Power/ ZigBee/ HomePlug, Phase A, Phase B, Phase C
    Model RD77720/ RD77724
    Data Rate Up to 250 kbps
    Security 128-bit AES Encryption
    TX/TX Sensitivity -99dBm Rx typ. (-100 in boost mode) at 1% packet error rate and +3dBm TX output power (+5dBm in boost mode)
    Model RD71220/ RD71224
    Data Rate Up to 200 Mbps
    Security 128-bit AES Encryption
    Power Measure
    Value kWh, kVAR, kVA, V, A, PF
    Accuracy Class 1
    Resolution kWh/ kVAR/ kVA = 0.001, V = 0.1, A = 0.01
    Sensibility 20mA/220V, 40mA/110V
    Power Requirements
    Power Input 5V DC
    Power Supply 100-240VAC 50/60Hz 0.1A
    Power Consumption Max 1.5W, Min 0.5W
    Dimensions (LxWxD) RD77720/ RD71220 (Open) 6.3x3.1x1.6" (160x80x40mm), RD77724/ RD71224 (Closed) 7.9x3.3x1.6" (200x85x400mm)
    Weight 0.82 lbs (0.37 kg)
    Operating Temperature 32ºF to 113ºF (0ºC to 45ºC)
    Storage Temperature -4ºF to 158ºF (-20ºC to 70ºC)
    Storage Humidity 5 to 90% non-condensing
    Regulatory Approvals
    Safety CE, SAA, UL, cUL
    Emissions CE, C-Tick, FCC Part 15 (Class B)
    Other RoHS, WEEE Complaint

    Ordering Information

    Part No. Description


    A2-777200-HR-21 Open System, Support up to <400A
    A2-777200-HR-31 Open System, Support above 400A and up to3000A
    A2-777240-HR-21 Closed System, Support up to <400A
    A2-777240-HR-31 Closed System, Support above 400A and up to 3000A


    A2-712200-HR-21 Open System, Support up to <400A
    A2-712200-HR-31 Open System, Support above 400A and up to 3000A
    A2-712240-HR-21 Closed System, Support up to <400A
    A2-712240-HR-31 Closed System, Support above 400A and up to 3000A