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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 m
Ω
/<100m
Ω/
<20 m
Ω
Voltage inputs
rated voltage
100 V/110 V/115 V/120 V
(parameterization)
voltage withstand, continuous
2 x U
n
(240 V)
burden at rated voltage
<0.5 VA
Sensor inputs, max 9
AC voltage range
9.4 V RMS
DC voltage range
±13.3 V peak
input impedance
>4.7 M
Ω
input capacitance
<1 nF
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Type
PS1/240V
(REF 541,
REF 543)
PS2/240V
(REF 545
only)
External
display
module
PS1/48V
(REF 541,
REF 543)
PS2/48V
(REF 545
only)
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
<50 W
Ripple in dc auxiliary voltage
max. 12% of the dc value
Interruption time in auxiliary dc
voltage without resetting
<40 ms, 110 V and
<100 ms, 200 V
<60 ms, 48 V and
<100 ms, 60 V
Internal overtemperature
indication
+78
°
C (+75…+83
°
C)
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Power supply version
PS1/240 V (High)
PS1/240 V (Medium),
PS2/240 V
PS1/48 V (Low), PS2/48 V
Input voltage, dc
220 V
110/125/220 V
24/48/60/110/125/220 V
Activating range, dc
140...265 V
80...265 V
18…265 V
Current drain
~2…25 mA
Power consumption/input
<0.8 W
Pulse counting (specific
digital inputs), frequency range
0...100 Hz
