Product
group
EE
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.
Inputs
System:
1 phase
3 phase, 3 wire or 4 wire balanced or unbalanced
Voltage: 80-480V L-L / 46-277V L-N +0%
Current:
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
Accuracy:
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
General
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
TYPE
CUBE 300
OPTIONS*
110VAC aux supply
*Specify
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