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Technical Data - Siemens 7 SK 88 A Series Installation And Maintenance Instructions Manual

Idmtl overcurrent relay
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Techn
i cal
Data
Auxiliary voltage
UN
Operating range
Max.
penn. residual ripple
Current demand. operated, including
output relay
at
UN
=
110-220 V
at
~
=
60
V
Test voltage at 50
Hz
for 60 s
Impulse voltage test to IEC 225-4
High~frequency
test
1
MHz,
400/s
Limiting temperature
for operation
for storage and transport
Case
Weight (approx.)
Material
Colour
Degree of protection (IEC 144)
Humidity class ace.
DIN
40040
Mechanical withstarxi ace.
DIN
60046·
for operation
for storage and transport
Specifications or recommendations
- 17 -
V
d.e.
60, 110, 125,
220
(preferred
values)
rnA
rnA
kV
kV
kV
kg
80 - 115 )
10
)
ca.
60
ca. 75
2
5
2.5
(for preferred
values)
-5
0
Cto+50oC
-25
°c
to
+65
°c
1.5 (CT powered version 1.8)
Makrolon, fibreglass reinforced
Stone grey,
RAL
7032
IP 54 (termdnals IP 04)
class
F,
i.e.
75
J
average
95
%
for max.
3 months p.a •
10 •••• 60 Hz: 0.035 mm
extentricit~
60 ••• 500 Hz: 0.5
g
5 ....• 8 Hz: 7.5 mm extentricity
8 ••• 500
Hz: 2 g
mc
225-4,
VDE
0435, BS 142

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