Specifications

2 • Energy Meter 026-1726 Rev 0 22-MAR-2011
1.1. Specifications
*External DC current limiting is required, see
Section 4.2.1., Fuse Recommendations.
Measurement Accuracy:
Real Power and
Energy
IEC 62053-22 Class 0.5S, ANSI C12.20
0.5%
Reactive Power
and Energy
IEC 62053-23 Class 2, 2%
Current 0.4% (+0.015% per °C deviation from
25°C) from 5% to 100% of range;
0.8% (+0.015% per °C deviation from
25°C) from 1% to 5% of range
Voltage 0.4% (+0.015% per °C deviation from
25°C) from 90V
L-L
to 600VAC
L-L
Sample Rate 2520 samples per second
Data Update Rate 1 sec
Type of Measure-
ment
True RMS up to the 21st harmonic 60 Hz
One to three phase AC system
Input Voltage Characteristics:
Measured AC Volt-
age
Minimum 90V
L-N
(156V
L-L
) for stated
accuracy;
UL Maximums: 600V
L-L
(347V
L-N
)
CE Maximums: 300V
L-N
(520V
L-L
)
Metering Over-
Range
+20%
Impedance 2.5 MΩ
L-N
/5 MΩ
L-L
Frequency Range 45 to 65 Hz
Input Current Characteristics:
CT Scaling Primary: Adjustable from 5A to 32,000A
Measurement Input
Range
0 to 0.333VAC or 0 to 1.0VAC (+20% over-
range)
Impedance 10.6kΩ (1/3 V mode) or 32.1kΩ (1 V mode)
Control Power:
AC 5VA max.; 90V min.
UL Maximums: 600V
L-L
(347V
L-N
)
CE Maximums: 300V
L-N
(520V
L-L
)
DC* 3W max.; UL and CE: 125 to 300VDC
Ride Through Time 100 msec at 120VAC
Output:
Alarm Contacts (all
models)
N.C., static output
(30VAC/DC, 100mA max. @ 25°C,
derate 0.56mA per °C above 25°C)
Table 1-1 - Energy Meter Specifications
Real Energy Pulse
Contacts (all mod-
els) AND
N.O., static output
Reactive Energy
Pulse Contacts
(30VAC/DC, 100mA max. @ 25°C,
derate 0.56mA per °C above 25°C)
RS-485 Port 2-wire, 1200 to 38400 baud, Modbus RTU
Mechanical Characteristics:
Weight 0.62 lb (0.28 kg)
IP Degree of Pro-
tection (IEC
60529)
IP40 front display; IP20 Meter
Display Character-
istics
Back-lit blue LCD
Terminal Block
Screw Torque
0.37 ft-lb (0.5 N.m) nominal/0.44 ft-lb (0.6
N.m) max.
Terminal Block
Wire Size
26 to 14 AWG (0.13 to 2.08 mm
2
)
Rail T35 (35mm) DIN Rail per EN50022
Environmental Conditions:
Operating Temper-
ature
-30°C to 70°C (86°F to 158°F)
Storage Tempera-
ture
-40°C to 85°C (-40°F to 185°F)
Humidity Range <95% RH (non-condensing)
Altitude of Opera-
tion
3 km max.
Metering Category:
US and Canada CAT III; for distribution systems up to
347 V
L-N
/600VAC
L-L
CE CAT III; for distribution systems up to
300 V
L-N
/480VAC
L-L
Dielectric With-
stand
Per UL 508, EN61010
Conducted and
Radiated Emissions
FCC part 15 Class B, EN55011/EN61000
Class B
(residential and light industrial)
Conducted and
Radiated Immunity
EN61000 Class A (heavy industrial)
Safety:
US and Canada
(cULus)
UL508 (open type device)/CSA 22.2 No.
14-05
Europe (CE) EN61010-1:2001
Table 1-1 - Energy Meter Specifications