Product
group
EE
A Din 96mm single line display, multi display energy meter with dual isolated volt free pulse outputs as standard for KWh & KVArh for interfacing to external equipment such as BMS systems. The CUBE 350 can also be specified optionally with MODBUS RS485 whilst still retaining the pulse outputs, plus an additional harmonics option via MODBUS is also available. The CUBE 350 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 350 is fully programmable to set up CT ratios, the CT secondary can be specified at ordering as either conventional 5 Amp or 1 Amp, or as 333mVAC which are used in application scenarios where the CT’s are sited a distance away from the meter and VA burden within the secondary cabling is an issue. The CUBE 350 auto scales to Wh, KWh, MWh etc, depending on the CT ratio programmed. The CUBE 350 is able to accept a very wide voltage input span of 80-480V L-L or 46-277V L-N, thus enabling the CUBE 350 to be used on VT circuits such as 11KV/110V, therefore a VT ratio can also be programmed if required. Optionally an additional Voltage Expander module can be ordered for system voltages from 480-690V L-L / 277-399 L-N +10%
Inputs
System:
1 phase
3 phase, 3 wire or 4 wire balanced or unbalanced
Voltage: 80-480V L-L / 46-277V L-N +0%
Voltage expander:
Optional 480-690V L-L / 277-399V L-N +10%
Current:
Via external 5 Amp secondary CT’s
Measuring range 0.2% to 120%
Frequency: 5-65Hz
Harmonics:
HD to 30th (with Harmonics option)
Individual to 15th (with Harmonics option)
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
On request 24VDC
Load:
5VA max
5W max
General
Temperature: Operating -10 ̊C to +55 ̊C
Humidity: 75% non condensing
Material: Mablex to UL94-V-0, self ext.
Terminals: 4mm rising cage
Dimensions: 96x96x83.5mm (72mm behind panel)
KWh:
Class 1 per EN 62053-21
Class 0.5 per ANSI C12.20
KVArh: Class 2 per EN 62053-23
KW & KVA: Class 0.25 IEC 60688
KVAr: Class 0.5 IEC 60688
Amps & Volts: Class 0.1 IEC 60688
Power Factor: ± 0.2 ̊
Neutral current: Class 0.5 IEC 60688
Pulse outputs:
1 pulse for KWh, 1 pulse for KVArh or KVAh
Scaling: Programmable between 1 & 100 counts of registers
Pulse periods: Programmable between 0.1-20Sec
Type: 2 x NO volt free, optically isolated
Rating: 100mA @ 70VDC/33VAC max
Isolation: 3.5KV for 1 min
TYPE
CUBE 350
CUBE 350 / MODBUS
CUBE 350 / MODBUS / HARMONICS
Dual pulse outputs on all meters as standard
CURRENT INPUT TYPE*
5 Amp
1 Amp
333mV**
OPTIONS*
230VAC aux supply (standard)
110VAC aux supply
24VDC aux supply
Voltage Expander
*Specify
**Please see split core 333mVAC secondary CT’s types: SCL, SCT, ROPE
An optional Voltage Expander is available for the CUBE 350 range for high L-L system voltages between 480V - 690V
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