
Cube 300
Energy & Power Sub-Meter — Meters 1× Three Phase Load — 5/1A
- 5/1A CT input
- Better than Class 1 accuracy
- Pulse output & Modbus RTU
- Dual tariff option
Product Description
The Cube 300 5/1A is a DIN 96×96 panel mounting electronic kWh meter — easy to install and convenient to use. Equally suitable for both 3-wire and 4-wire 3φ unbalanced loads (optionally for single-phase or balanced 3φ systems), the meter is designed to measure accurately irrespective of the type of load. Fully isolated current inputs ensure installation safety. Better than Class 1 kWh accuracy (EN 61036, EN 62053-21 & BS 8431). Configuration of CT, VT and pulse settings is done from the front panel with installation aids — kW display and configuration display — to ensure "Right First Time" commissioning. Standard with 1 isolated pulse output and optional dual-tariff (2nd pulse output) and MODBUS RTU communications. Auxiliary supply 230V (110V optional). IP54 protection (IP65 optional). Designed and made in the UK with a 5-year warranty.
Key Features
- DIN 96×96 panel mounting electronic kWh meter
- 1× three-phase load (3-wire or 4-wire unbalanced); single-phase or balanced 3φ to order
- 5/1A current input — fully isolated
- Large rising cage terminals (0.25–4 mm² cables)
- Auxiliary supply: 230V standard, 110V optional
- Better than Class 1 kWh accuracy (EN 61036, EN 62053-21 & BS 8431)
- kW accuracy better than ±1% reading; Class 1 BS 8431
- Installation aids: kW display & configuration display (CT, VT & pulse setting)
- "Right First Time" commissioning with pulse test facility
- 1 isolated pulse output as standard
- Optional 2nd pulse output with dual tariff
- MODBUS RTU communications option (factory fitted)
- IP54 protection (IP65 optional)
- Plastic and metal enclosure options, pre-wired panels
- Designed and made in the UK
- ND 5-year warranty
You may also be interested in

MultiCube 950
Measure 3× three-phase, 9× single-phase or any combination. Class 0.5 accuracy with patented Auto CT Recognition, Modbus RTU, MBus and Ethernet options.
View Product
MultiCube 650
Meters 2× three-phase or 6× single-phase loads in any combination. Class 0.5 accuracy with Plug & Play RJ12 CT connections, Modbus RTU, MBus and Ethernet options.
View Product
MultiCube Modular
Modular DIN rail sub-meter measuring 2–20× three-phase or 6–60× single-phase loads in any combination. Class 1 accuracy, 333mV CT input, 2 pulse outputs, Modbus RS-485, Ethernet IP with data logging, and M-Bus options.
View Product
Cube 400
Energy and power multi-function sub-meter for 1× three phase load. 96×96 panel mount, 3-line backlit display, 2 pulse outputs, Modbus RS-485 and IP Ethernet options. 333mV CT input with 230V, 110V, 48V DC or 24V DC auxiliary supply.
View ProductReady to discuss your project?
Our technical team provides free pre- and post-sales support from specification through to commissioning.