CUBE 300


  • Panel mounting
  • Suitable for 3 phase loads 3 wire or 4 wire
  • Suitable for single phase loads
  • Isolated pulse output as standard
  • Class 1 accuracy
  • IP54 standard
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A Din 96mm digital KWh meter with an isolated volt free pulse output as standard for interfacing to external equipment such as BMS systems. The CUBE 300 is suitable for both three phase and single phase loads and if three phase both 3 wire or 4 wire balanced or unbalanced loads, inductive or resistive. The CUBE 300 benefits from fully isolated current inputs (internal current transformers are utilised). To aid commissioning the meter can also display instantaneous KW, which is displayed for 60 seconds before reverting back to KWh. The CUBE 300 is fully programmable to set up CT ratios and auto scales to Wh, KWh, MWh, depending on the CT ratio programmed. The CUBE 300 is able to accept a very wide voltage span input of 80-480V L-L or 46-277V L-N, thus enabling the CUBE 300 to be used on VT circuits such as 11KV/110V, therefore a VT ratio can also be programmed if required. Also, the pulse length and pulse value can also be programmed within “sensible” constraints.


1 phase
3 phase, 3 wire or 4 wire balanced or unbalanced

Voltage: 80-480V L-L / 46-277V L-N +0%

Via external 5 Amp secondary CT’s
Measuring range 0.2% to 120%

Frequency: 45-65Hz

Harmonics: Up to the 20th

Voltage burden: < 0.1VA per phase

Current burden: < 0.1VA per phase

Voltage overload: x4 for 1 hour

Current overload: x40 for 0.5 Sec max

Auxiliary supply:
230VAC 50/60Hz +15%
On request 110VAC

Load: 2VA max

KWh: Better than Class 1
KW: Better than Class 1

Pulse output

Function: 1 pulse per unit of energy

Scaling: Programmable between 1 & 1000 counts of KWh register

Pulse period: Programmable between 0.1-20Sec

Type: NO volt free

Rating: 100mA @ 100VAC/DC max


Temperature: Operating -10 ̊C to +65 ̊C

Humidity: <75% non condensing

Protection: IP54 standard, IP65 optional

Material: Mablex to UL94-V-0, self ext.

Dimensions: 96 x 96 x 83.5mm


CUBE 300


110VAC aux supply



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