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ABB Industrial IT enabled REX 521 - Page 38

ABB Industrial IT enabled REX 521
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38
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Technical Reference Manual, General
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Max. system voltage 250 V ac/dc
Continuous carry 5 A
Make and carry for 0.5 s 30 A
Make and carry for 3 s 15 A
Breaking capacity when control
circuit time constant L/R <40 ms, at
48/110/220 V dc
5 A/3 A/1 A
Minimum contact load 100 mA, 24 V ac/dc (2.4 VA)
TCS (Trip-circuit
supervision)
Control voltage
range
20265 V ac/dc
Current drain
through the
supervision
circuit
approx. 1.5 mA (0.991.72 mA)
Minimum voltage
(threshold) over
a contact
20 V ac/dc (1520 V)
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Specified service temperature range -10+55°C
Transport and storage temperature range -40+70°C
Enclosure class Front side, flush-mounted IP 54
Rear side, connection terminals IP 20
Dry heat test according to IEC 60068-2-2
Dry cold test according to IEC 60068-2-1
Damp heat test, cyclic according to IEC 60068-2-30,
r.h. >93%, T = 2555°C
Storage temperature tests according to IEC 60068-2-48
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Insulation tests Dielectric test
IEC 60255-5
Test voltage 2 kV, 50 Hz, 1 min.
Impulse voltage
test
IEC 60255-5
Test voltage 5 kV, unipolar impulses,
waveform 1,2/50 µs, source
energy 0.5 J
Insulation
resistance
measurements
IEC 60255-5
Insulation resistance > 100 M, 500 V dc
Mechanical tests Vibration tests (sinusoidal) IEC 60255-21-1, class I
Shock and bump test IEC 60255-21-2, class I
Seismic test IEC 60255-21-3, class 2
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The EMC immunity test level fulfills the requirements listed below
1 MHz burst disturbance test, class
III, IEC 60255-22-1
common mode 2.5 kV
differential mode 1.0 kV
Electrostatic discharge test,
class III
IEC 61000-4-2 and 60255-22-2
for contact discharge 6 kV
for air discharge 8 kV
Radio frequency interference test conducted, common mode
IEC 61000-4-6, IEC 60255-22-6
10 V (rms),
f = 150 kHz80 MHz
radiated, amplitude-modulated
IEC 61000-4-3, IEC 60255-22-3
10 V/m (rms),
f = 801000 MHz
radiated, pulse-modulated
ENV 50204, IEC 60255-22-3
10 V/m,
f = 900 MHz

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