L&T three phase energy meters are high-accuracy digital meters widely used for industrial, commercial, solar net metering, and utility billing applications in India. These meters are robust and comply with stringent quality and anti-tampering standards.
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Phases & Wiring: 3 Phase, 4 Wire system
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Voltage: Usually 3 x 230V or 3 x 240V/415V (phase-to-neutral/phase-to-phase), 50Hz
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Current Range: Variants exist from 5-10A, 10-40A, 10-60A, 50-100A (CT operated or direct connected)
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Accuracy: Class 1.0 (commonly), Class 0.5s available for high-precision applications
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Display: 8-digit LCD or LED display for energy, power, phase presence, and diagnostics
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Measured Parameters: kWh, kVAh, kVARh, Voltage, Current, Power Factor, Maximum Demand, Frequency, Load Survey
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Net Metering Capability: Bidirectional (import/export) energy measurement, ideal for solar/grid interface
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Communication: Optical/RS232/RS485/IR/IrDA/RF (model dependent), supports DLMS/protocols for AMR/AMI integration
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Tamper Protection: Neutral missing, current reversal, cover opening, phase sequence, voltage imbalance, and more
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Tariff Features: Multiple tariff/Time-of-Day (ToD), demand registers, configurable profiles
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Compliance & Standards: IS 13779, IEC 62052-11, IEC 62053-21, CBIP 325, and others
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Popular Models: WM301BC3C00, ER300P, Orion (L&T Schneider), Premier 300
