ABB Industrial IT enabled REX 521 - Design description; Technical data

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Technical Reference Manual, General
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Rated frequency 50.0/60.0 Hz
Current inputs Rated current 0,2 A/1 A/5 A
Thermal withstand
capability
continuously 1.5 A/4 A/20 A
for 1 s 20 A/100 A/500 A
dynamic current withstand, half-wave
value
50 A/250 A/1250 A
input impedance <750 mΩ/<100mΩ/
<20 mΩ
Voltage inputs rated voltage 100 V/110 V/115 V/120 V
(parametrization)
voltage withstand, continuous 2 x U
n
(240 V)
burden at rated voltage <0.5 VA
Sensor inputs voltage range RMS 9.4 V RMS
voltage range peak ± 12 V
input impedance >4.7 MΩ
input capacitance <1 nF
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Type PS_87H
(REX521xxHxx)
PS_87L
(REX521xxLxx)
Input voltage, ac 110/120/220/240 V -
Input voltage, dc 110/125/220 V 24/48/60 V
Voltage variation ac 85…110%, dc 80…120% of rated
value
dc 80…120% of rated value
Burden <20 W
Ripple in dc auxiliary voltage max. 12% of the dc value
Interruption time in auxiliary dc
voltage without resetting
<40 ms, 110 V
<100 ms, 200 V
<15 ms, 24 V
<50 ms, 48 V
Internal overtemperature
indication
+78°C (+75…+83°C)
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Type PS_87H
(REX521xxHxx)
PS_87L
(REX521xxLxx)
Operating range, dc 80…265 V dc
DI9: 18...265 V
18...265 V
Input voltage, dc DI1...DI8: 110/125/220 V
DI9: 24/48/60/110/125/220 V)
DI1...DI9:
24/48/60/110/125/220 V
Current drain ~2…25 mA
Power consumption/input <0.8 W
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Max. system voltage 250 V ac/dc
Continuous carry 5 A
Make and carry for 0.5 s 10 A
Make and carry for 3 s 8 A
Breaking capacity when control
circuit time-constant L/R <40 ms,
at 48/110/220 V dc
1 A/0.25 A/0.15 A