Technical Data - Siemens SIPROTEC easy 7SJ45 Manual

Numerical overcurrent protection
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Manual 7SJ45
2.11

Technical Data

Current inputs
Rated frequency f
N
Rated current I
N
Power consumption
– at I
= 1 A or 5 A
N
Overload capability of current
path
– thermal (rms)
– dynamic (peak value)
Recommended primary current
transformers:
C53000-K1174-C001-7
50 Hz or 60 Hz (adjustable)
1 A or 5 A
approx. 1.4 VA at I
N
50·I
for 1 s
N
15·I
for 10 s
N
2·I
continuous
N
100·I
for one half-cycle
N
10P 10, 2.5 VA or according to the
requirements and the required tripping
power
Outputs
1 impulse output (7SJ45XX-0*)
Number:
Relay output (7SJ45XX-1*)
Number:
Switching capability
Switching voltage
Permissible current per contact
Interference suppression capaci-
tors across relay contacts
UL-Listing for relay output with the following rated data:
120 Vac
Pilot duty, B300
240 Vac
Pilot duty, B300
240 Vac
5 A General Purpose
24 Vdc
5 A General Purpose
48 Vdc
0.8 A General Purpose
240 Vdc
0.1 A General Purpose
120 Vac
1/6 hp (4.4 FLA)
240 Vac
1/2 hp (4.9 FLA)
Technical Data
1 pulse output
24 V DC / 0.1 Ws
1 changeover contact
MAKE 1000 W/VA
BREAK 30 VA
40 W resistive
25 VA at L/R ≤ 50 ms
≤ 250 V DC, ≤ 240 V AC
5 A continuous;
30 A for 0.5 s (inrush current)
Ceramic, 4.7 nF, 250 V
65

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