User`s guide

Volume 3—Power Distribution and Control Assemblies CA08100004E—November 2013 www.eaton.com V3-T9-63
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9.3
Metering Devices, Protective Relays, Software and Connectivity
Metering Devices
Technical Data and Specifications
IQ 250/260 Electronic Power Meter
Description Specifications
Current Inputs
Class 10 5 amp nominal, 10 amp max.
Class 2 1 amp nominal, 2 amp max.
Fault current withstand
100 amps for:
300 amps for:
500 amps for:
10 seconds
3 seconds
1 second
Continuous current withstand 20 amps for screw terminated or pass-
through connections
Programmable current Full scale to any CT ratio
Burden 0.005 VA per phase max. at 11 amps
Pickup current
Class 10
Class 2
0.1% of nominal
5 mA
1 mA
Connections
Pass-through wire gauge dimension
Quick connect
0.177 inches (4.5 mm)
0.25-inch male tab
Voltage Inputs
Range
Line-to-neutral
Line-to-line
20–576 Vac
0–721 Vac
Programmable voltage range Full scale to any PT ratio
Supported systems 3 element wye, 2.5 element wye,
2 element delta, four-wire delta systems
Input impedance 1 meg ohm/phase
Burden 0.36 VA/phase max. at 600V;
0.014 VA at 120V
Connection 7-pin 0.400-inch pluggable terminal block,
AWG #12–26 (0.129–3.31 mm
2
)
Isolation
All inputs and outputs are galvanically isolated to 2500 volts.
Environmental Ratings
Operating temperature –20ºC to +70°C
Storage temperature –20ºC to +70°C
Operating humidity To 95% RH noncondensing
Faceplate rating NEMA 12
Water-resistant
Mounting gasket included
Description Specifications
Sensing Method
Voltage, current True rms
Power Sampling at over 400 samples per cycle on
all channels
Harmonics resolution 40th order
Update Rate
Watts, VAR and VA 100 msec at 60 Hz
All other parameters 1 second at 60 Hz
Power Supply
AC/DC voltage option 90–265 Vac at 50/60 Hz or 100–370 Vdc,
universal AC/DC supply
DC voltage option 18–60 Vdc
Burden 10 VA max.
Standard Communications Format
Connection type RS-485 (through back plate)
Com port baud rate 9600–57,600 bauds
Com port address 01–247
Data format 8-bit, no parity
Protocols Modbus ASCII, RTU or DNP 3.0
KYZ Pulse
Contacts 1 Form A
On resistance, max. 35 ohms
Peak switching voltage 350 Vdc
Continuous load current 120 mA
Peak load current 350 mA (10 ms)
Off-state leakage current at 350 Vdc 1 uA
Opto-isolation 3750 Vac