01423 340 000

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Northern Design Rail 350 Multi-function meter series

  • Accuracy: Class 1
  • DIN-rail mount (6 Modules wide)
  • Isolated Pulse output
  • Individual Harmonics to the 15th, THD to the 30th (Modbus)
  • Multiple communications options 
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Product Details

The PowerRail 350 kWh Meter is a multi-function meter measuring kWh, kVARh, kW, V, A, PF & Hz and is DIN-rail mounting, fitting in a standard MCB enclosure.

Rail 350 models:

  • Rail 350 5A CT Connected
  • Rail 350 5A CT Connected with Modbus/THD
  • Rail 350V mV CT Connected (0.333V)
  • Rail 350V mV Connected with Modbus/THD (0.333V)

Product Specification

Inputs

  • System: 3 Phase 3 or 4 Wire Unbalanced Load
  • Voltage Un: 400/230V. 3 Phase 3 or 4 Wire, 110/63V & 208/120V optional
  • Current In: 5A from external CTs. 1A optional. Fully isolated (Rail 350)
  • Current In: 0.333V from external CT's. Fully isolated (Rail350V)

Measurement

  • Voltage: 50% to 120%
  • Current: 0.2% to 120%
  • Fundamental: 45 to 65Hz
  • Harmonics: Up to 30th harmonic at 50Hz (Individual to the 15th)
  • Burden Voltage: <0.1VA per phase
  • Current: <0.1VA per phase
  • Overload Voltage: x4 for 1 hour
  • Current: x40 for 0.5 second max

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