Siemens 7SR12 Argus - Binary (Digital) Outputs; Binary (Digital) Inputs

7SR11 & 7SR12 Performance Specification
©2017 Siemens Protection Devices Limited Chapter 3 Page 11 of 56
1.2.4 Binary (Digital) Outputs
Contact rating to IEC 60255-0-2
Attribute Value
Carry continuously 5A AC or DC
Make and carry
(L/R ≤ 40 ms and V ≤ 300 V)
for 0.5 s 20A AC or DC
for 0.2 s 30A AC or DC
Break
( ≤ 5 A and ≤ 300 V)
AC resistive 1250 VA
AC inductive
250 VA at p.f. ≤ 0.4
DC resistive 75 W
DC inductive
30 W at L/R ≤ 40ms
50 W at L/R ≤ 10ms
Contact Operate / Release Time 7ms / 3ms
Minimum number of operations 1000 at maximum load
Minimum recommended load 0.5 W at minimum of 10mA or 5V
1.2.5 Binary (Digital) Inputs
DC operation ENATS48-4
Type (maximum threshold) Nominal Voltage Minimum threshold Maximum withstand
V
BI
19 VDC 24, 48, 60 110, 220 V DC 17 VDC 320 VDC
88 VDC 110, 220 V DC 74 VDC 320 VDC
AC operation
Type Operating Range
V
BI
19 VDC 92 to 138 V
RMS
AC. Nominal 100, 110,115,120 V AC*
* Binary inputs are not rated for use on 220-250 V AC.
1.2.5.1 DC Performance
Attribute Value
Maximum DC current for
operation
V
BI
= 19 V
1.5mA
V
BI
= 88 V
1.5mA
Reset/Operate voltage ratio
≥ 90 %
Response time < 9ms*
Response time when programmed to energise an
output relay contact (i.e. includes output relay
operation)
< 20ms*
* The binary inputs have a low minimum operate current and can be set for high speed operation. To achieve
immunity from AC interference, a BI pick-up delay of typically one-cycle can be applied. This setting is applied by
default.