Three Phase Smart Meter

A high-accuracy meter suitable for residential, commercial and industrial billing purposes. 
  • Manufactured to comply with IEC standards
  • Three-phase operation, up to 180A
  • Comprehensive energy measurements including active energy, reactive energy, power factor and RMS voltage / current
  • Wireless operation
  • Low power operation
  • Simple installation

Order Codes: BBSP-SUB3W

The Smart Meter SUB3W is a high-accuracy energy meter suitable for commercial energy metering applications.

The meter is suitable for three phase operation with a wide range of input voltages and can be used internationally. The SUB3W provides a comprehensive range of power quality information which can be used to diagnose or monitor precise electrical behaviour.

Wireless communications, wall mount fittings and internal current clamps make for simple installation.
  • Metering of incoming feed to offices and commercial buildings
  • Metering of individual machines and three-phase circuits
  • Billing and bill apportionment of commercial tenants
  • Analysis of power factor quality

Application & Features

This high accuracy meter is suitable suitable for residential billing or metering single-phase circuits. Its features include:

  • Manufactured to comply with international standards IEC 60687/61036/61268 and IEC 62053-21/62053-22/62053-23
  • Measures active energy, reactive energy, apparent energy, active power, RMS voltage, RMS current, power factor, temperature and frequency
  • Clear LCD to show measured values
  • Wide voltage supply range of 110-240VAC
  • Ib=10A per phase, maximum 60A per phase
  • High Accuracy design, AC2.0
  • Wireless operation
  • Encrypted, secure communications
  • Mesh networking for excellent range


  • Accuracy class: class AC2.0 / IEC 60044-1 Accuracy class 2, suitable for billing applications
  • Energy: active energy phases 1/2/3, reactive energy phases 1/2/3 and apparent energy phases 1/2/3 (kWh, VAh, VARh)
  • Power: instantaneous active power phases 1/2/3 (kW)
  • General metrology: power factor phases 1/2/3, RMS voltage phases 1/2/3, RMS current phases 1/2/3, frequency phase 1, temperature (+-3DegC)
  • Maximum current: 180A (3 phases of 60A each)
  • Ib: 10A / phase
  • Maximum diameter of input wires: 9mm
  • Nominal reporting interval (kWh): 10 seconds
  • Nominal reporting interval (other measurements): 180 seconds
Wireless Communications
  • Standard: 802.15.4 / Zigbee Pro
  • Does not interfere with WiFi networks
  • Frequency: 2.4 GHz
  • Maximum range between mesh nodes: 32m
  • Maximum nodes per network: >1,000,000
  • Encryption: 128 bit AES
  • Size (l x w x h): 165 x 117 x 65 mm
  • Fitting: Wall mount
  • Weight: 750g
  • Storage (min to max): -20 to 50°C, 0 to 60% relative humidity
  • Operation (min to max): 0 to 75°C, 0 to 60% relative humidity
  • Power supply: 110-240 VAC, 50-60 Hz
  • Power consumption (typical / max): 0.1/0.1 W
Miscellaneous and Standards
  • Standards: CE, EMF, LVD, WEE, ROHS
  • Manufactured to comply with: IEC 60687/61036/61268 and IEC 62053- 21/62053-22/62053-23
  • Country of design and manufacture: UK
  • Packaging: cardboard box