Exhibitor Press Release

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26 Aug 2021

WM50: the new compact branch circuit monitoring solution for data centres

Carlo Gavazzi Stand: N35
WM50: the new compact branch circuit monitoring solution for data centres

When the electrical system is different from a bus-bar trunking or bus-duct system and feeding of numerous loads is based on a PDU Power Distribution Unit, then WM50-96 is the ideal solution for branch circuit monitoring. The solution is based on one core unit WM50 which is usually installed and connected on the mains for main metering and some TCD12 units as combined sub-meters installed downstream the MCBs for single phase or three-phase loads. As the whole installation cost is not only given by the components cost but even more by installation and commissioning costs, this innovative solution allows you to achieve more than 75% installation savings vs. a regular solution. WM50 with its up to 96 submeters, which means up to eight 12-channel split-core current transformer TCD blocks, is also suitable to retrofit existing installations. To further reduce the TCO (total cost of ownership) also the configuration and commissioning time of “WM50 solution” can be significantly reduced by using OptoProg, the optical port coupling unit with rechargeable battery, provided with both USB and Bluetooth communication capabilities to be used in combination with either UCS the laptop configuration and diagnostics platform or the UCS Mobile, the configuration and diagnostics App for Android smart phones.

WM50, main metering solution for distribution boards:

  • 96 x 96 mm panel mounting meter with IP65, NEMA4X/12 front protection degree and modular housing
  • Up to 480 VLL ac and 5A CT measuring inputs
  • Single and three-phase measurements: V, A, An, Hz, PF, W, VA, var, run-hour, kvarh, bi-directional kWh (cl. 0.5S EN62053-22), THD analysis up to 31st harmonics, single harmonics via Modbus
  • Basic accuracy 0.2% RDG (V/A)
  • 9+1-DGT totalized variables LCD display
  • Optical port for fast data reading and configuration
  • Universal power supply (90 to 260Vac/dc)
  • 4-tariff management
  • 16-alarm PLC logic and digital inputs for utility metering, built-in event and data stamping for instantaneous variables
  • cULus approved

WM50, I/O optional modules:

  • RS232/RS485
  • Ethernet (Modbus TCP)
  • 6-channel digital inputs, up to 4-relay/6-static outputs + OR/AND alarm logic management
  • Direct An + Temperature + Process signal measurements

TCD12, sub metering:

  • Primary: 12*65A
  • Hole size (mm): 8.5
  • Centre-to-centre distance (mm): 17.5mm
  • RJ cable length (cm): 30 to 500
  • 12-channel split-core current sensing unit
  • Accuracy Class 2 (kWh) according to EN62053-21 (meter + TCD unit)
  • Up to 96 channels: kWh, W, var, VA, PF, A, THD A
  • Data available via communication module

For further information:
APAC Headquarters - Carlo Gavazzi Automation Singapore Pte Ltd.

61 Tai Seng Avenue #05-06 Print Media Hub @ Paya Lebar iPark Singapore 534167
Tel: +65 67 466 990  Fax: +65 67 461 980 info@carlogavazzi.com.sg   www.gavazziautomation.com


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