Siemens 7SR12 Argus - Page 365

7SR11 & 7SR12 Applications Guide
©2017 Siemens Protection Devices Limited Chapter 7 Page 9 of 48
BI
(19
V
)
LOW
BURDEN
30
V DC Nominal
(
24 –
37
.
5V Operative
)
I
OP
> 10
mA
470
1K
5
48V DC Nominal
(37
.
5 –
60
V Operative
)
I
OP
> 10
mA
1
K6
1
K5
110V DC Nominal
(87
.5 –
137.
5V Operative)
I
OP
>
25mA
2K1
560
HIGH
BURDEN
30V DC Nominal
(24
–
37
.5
V Operative
)
I
OP
> 20
mA
220
820
48
V DC Nominal
(
37.5 – 60V Operative)
I
OP
> 20
mA
820
820
110
V DC Nominal
(87.
5 –
137.5
V Operative)
I
OP
>
50mA
1K2
330
BI Pickup DTL = 15
ms
(
10
µF,
60V Capacitance discharge
)
BI Pickup DTL
= 15ms
(
10µF, 150
V Capacitance discharge)
BI
(19
V
)
BI (
19V)
BI (
19
V)
BI (
19V
)
BI (
19V)
+
-
+
+
+
+
+
-
-
-
-
-
Resistor power ratings:
30V DC Nominal >3W
48V DC Nominal >3W
110V DC Nominal >10W
(Low Burden)
110V DC Nominal >20W (High Burden)
Resistors must be wired with crimped connections as they may run hot
110V DC Nominal
(87.
5 –
137.5V Operative)
I
OP
> 25mA
2
K7
110V DC Nominal
(
87.5
– 137.
5V Operative)
I
OP
> 50mA
1K3
BI Pickup DTL = 15ms
(10µF
, 150V Capacitance discharge)
BI (88V
)
BI (88V)
+
+
-
-
Figure 1.2-3 Binary Input Configurations Providing Trip Relay Levels of ENA TS 48-4