Energy Sub Meters, Current Transformers & Accessories
Browse our complete range of UK-manufactured energy sub meters, current transformers and metering accessories — designed for accurate energy monitoring in commercial, industrial and multi-tenant buildings. All products carry CE, UKCA, UL and CSA certifications with an industry-leading 5-year warranty.
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.
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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.
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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.
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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.
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Cube 350
Energy and power multi-function sub-meter for 1× three phase load. 96×96 panel mount, 1-line backlit display, 2 pulse outputs, Modbus RS-485 and IP Ethernet options. 333mV CT input with 230V, 110V or 24V DC auxiliary supply.
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Rail 350
DIN rail mounted energy and power multi-function sub-meter for 1× three phase load. Class 1 kWh accuracy, 2 pulse outputs, optional Modbus RS-485. 333mV CT input with 230V, 110V or 24V DC auxiliary supply.
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Rail 310
DIN rail mounted energy and power sub-meter for 3× single phase loads. Class 1 kWh accuracy, 3 pulse outputs, optional Modbus RS-485. 333mV CT input with 230V and 110V auxiliary supply.
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RJ12 Cables
RJ12-to-RJ12 cables to connect Plug & Play CTs to MultiCube 950 and 650. 2 cables required for the 650, 3 cables for the 950.
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Split Core CTs – Plug & Play
The ND series of retro-fit split core 333mV current transformers with Plug & Play RJ12 connections. Safe, low voltage output — no worries about open-circuiting CT secondary circuits. SCT range from 30A to 800A, plus Rogowski Rope CTs and 333mV Flex current sensors. Designed for use with the MultiCube 950 and MultiCube 650.
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Split Core Screw Terminal CTs
The ND series of retro-fit split core 333mV current transformers with screw terminal connections. Safe, low voltage output — no worries about open-circuiting CT secondary circuits. SCT range from 30A to 800A. Rogowski rope range from 1000A to 3500A.
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5/1A Current Transformers
The ND range of 5/1A current transformers for use with traditional CT-operated sub meters. Available in solid core and split core designs with current ratings from 50A to 5000A. Compatible with all ND 5/1A sub meters.
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CTs & Rogowskis
The ND series of retro-fit split core 333mV current transformers and Rogowski rope CTs. Safe, low voltage output — no worries about open-circuiting CT secondary circuits. SCT range from 30A to 800A; Rogowski rope range from 1000A to 3500A.
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Clamp-On Current Transducers
Non-invasive clamp-on current transducers for easy retrofit installation without circuit interruption.
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XD Current Transducers
High-accuracy XD current transducers for use with analogue inputs on BMS and SCADA systems. 4-20mA or 0-5V DC output.
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Wiring Looms
Pre-assembled wiring looms for rapid installation of ND multi-channel sub meters.
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Earth Leakage Relays
Safe and simple protection against earth faults — from 5mA to 30A. The ELR251 is a general earth fault protection relay covering 3 primary current ranges (5–100mA, 50mA–1A, 500mA–10A) with adjustable trip currents and delays. Supplied with a range of Core Balance CTs.
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Meter Enclosures
IP-rated enclosures for protecting ND sub meters in harsh or exposed environments.
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