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.

Features:

• High accuracy design, AC2.0
• Manufactured to comply with international standards IEC 60687/61036/61268 and IEC 62053-21/62053-22/62053-23
• For each phase, measures active energy, reactive energy, apparent energy, active power, RMS voltage, RMS current and power factor
• Measures temperature and frequency
• Clear LCD to show measured values
• Wide voltage supply range of 110-240VAC
• Ib=10A per phase, maximum 60A per phase (180A maximum across all phases)
• Wireless operation
• Encrypted communications for secure operation
• Mesh networking for excellent range
• Unique serial number embedded in each device for identification on network

Application Areas:

• 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

Electrical

• Power supply: 110-240 VAC, 50-60 Hz
• Power consumption (typical / max): 0.1 / 0.1 W

Measurements and Metrology

• 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

Physical

• Size (l x w x h): 218 x 145 x 68 mm
• Fitting: wall mount
• Weight: 1250g
• 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

Wireless Communications

• Frequency: 2.4 GHz
• Standard: IEE 802.15.4 / Zigbee Pro
• Does not interfere with WiFi networks
• Maximum range between mesh nodes: 32m
• Maximum nodes per network: >1,000,000
• Encryption: 128 bit AES

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