Page 103 - MCCB-XT2-XT4

ABB | SACE Tmax XT

3 - Class 1 Power & Energy Metering

List and performance Presence of the Class 1 Power & Energy Metering package allows higher measuring accuracy to be
obtained for the following quantities:
Accuracy of
Measurement Monitor time (min-max) Normal operating range
read value
Standard IEC 61557-12,
Phase currents (8) 0,004 ÷ 64 In 0,5 % (1)
tables 20-22
Internal earth fault current Standard IEC 61557-12, (1)
(2) 0,08 ÷ 64 In table 20 0,5 %
Line frequency 30 ÷ 80 Hz (3) fn ± 10 % (4) ± 0,02 Hz
Total active and apparent |Pmin ÷ Pmax| (5) Standard IEC 61557-12, 1 % (1)
power tables 8-11-14
Active and apparent phase (5) Standard IEC 61557-12, (1)
power |Pmin ÷ Pmax| tables 8-11-14 1 %
Total active and apparent 1 kWh ÷ 2 TWh; 1 kVARh ÷ 2 Standard IEC 61557-12, (1)
energy TVARh; 1 kVAh ÷ 2 TVAh tables 8-11-14 1 %
Standard IEC 61557-12,
Power factor 0,5 ÷ 1 1% (1)
table 27
(1) the accuracy values refer to the normal operating intervals and conditions established by IEC
61557-12, for each quantity and class declared
(2) available with LSIG versions
(3) available for voltage values of over 30 V (with Un < 277 V) or 60 V (with Un ≥ 277 V)
(4) 47 ÷ 55 Hz with fn = 50 Hz; 54 ÷ 66 Hz with fn = 60 Hz
(5) Pmin = 0,5 In x 5 V; Pmax= 3 x 16 In x 900 V
(8) internal phase current; in the presence of an external Neutral, the accuracy of current Ne is 1%

Functional characteristics The measuring performance of the Class 1 Power & Energy Metering package is guaranteed in the
following conditions (from table 43 of standard IEC 61557-12):
Characteristic Value
Classification of performance measuring
and monitoring device (PMD) in accordance PMD-DD
with chapter 4.3 of the standard
Operating: T= -25°C to +70°C; Storage: T = -30°C to
Temperature
+70°C; Class: K70
Up to 90% relative humidity without condensation;
humidity and altitude
From 0 to 2000 meters
Performance class for active energy and 1
power

Information page Presence of the Class 1 Power & Energy Metering package activates the IEC 61557-12 information page,
which can be consulted in the About menu
The page shows the activation state of the Class 1 Power & Energy Metering package (Activated/
Deactivated) and the serial numbers of certain accessories installed on the CB for the specific purpose of
conforming to the characteristics of the package (electronic units and internal current sensors)

101 | © 2022 ABB | 1SDH002031A1002 - ECN000212994 Ekip Touch - Measurements | 3 - Class 1 Power & Energy Metering