User`s guide

Volume 3—Power Distribution and Control Assemblies CA08100004E—November 2013 www.eaton.com V3-T9-61
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9.3
Metering Devices, Protective Relays, Software and Connectivity
Metering Devices
Additional Features
Features of IQ 250 and IQ 260 Electronic Power Meters
Notes
1
Digital out with IQ 250 requires external command.
2
Requires external power supply.
Standards and Certifications
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IEC 687: 0.2% accuracy
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ANSI C12.20: 0.2% accuracy
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ANSI C62.41: Burst
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UL/cUL: Electrical and
electronic measuring and
test equipment 22CZ
Features IQ 250 IQ 260
Instrumentation
Current, per phase
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Current demand
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Calculated neutral current
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Voltage, per phase (L-L, L-N)
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Frequency
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Power, Energy and Demand
Real, reactive and apparent power, total and per phase (kW, kVAR, kVA)
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Real, reactive and apparent energy, total and per phase (kWh, kVARh, kVAh)
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Real, reactive and apparent power demand
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Power factor, total and per phase
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Min./max. readings, I, V, PF, F, THD (IQ 260), kW, kVAR, kVA
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Demand Methods
Block interval (sliding, fixed)
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Communications
RS-485
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KYZ output
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Modbus RTU
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Modbus ASCII
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DNP 3.0
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Data Logging
128 KB for data logging Opt. Opt.
I/O
Two digital in /two digital out
1
Opt. Opt.
Four digital in/four KYZ out Opt. Opt.
Four analog output (4–20 mA)
2
Opt. Opt.
Four analog output (0–1 mA) Opt. Opt.
Power Quality Analysis
Total harmonic distortion (THD) voltage and current per phase
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Alarming
Set point driven alarm
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