7SG11 Argus 8 Performance Specification
11 Output Contacts
Contact rating to IEC 60255-0-20.
Carry continuously 5A ac or dc
Make and Carry
(limit L/R ≤ 40ms and V ≤ 300 volts)
For 0.5 sec 20A ac or dc
For 0.2 sec 30A ac or dc
Break
(limit ≤ 5A or ≤ 300 volts)
Ac resistive 1250VA
Ac inductive
250VA @ PF ≤ 0.4
Dc resistive 75W
Dc inductive
30W @ L/R ≤ 40 ms
50W @ L/R ≤ 10 ms
Minimum number of operations 1000 at maximum load
Minimum recommended load 0.5W, limits 10mA or 5V
12 Environmental Withstand
12.1 General
Temperature - IEC 60068- 2-1/2
Operating range -10°C to +55°C
Storage range -25°C to +70°C
Humidity - IEC 60068- 2-3
Operational test 56 days at 40°C and 95% RH
Transient Overvoltage – IEC 60255-5
Between all terminals and earth or between any two
independent circuits without damage or flashover
5kV 1.2 / 50µs 0.5J
Insulation - IEC 60255-5
Between all terminals and earth 2.0kV rms for 1 min
Between independent circuits 2.0kV rms for 1 min
Across normally open contacts 1.0kV rms for 1 min
12.2 Immunity
High Frequency Disturbance -
IEC 60255-22-1 Class III
Variation
2.5kV Common (Longitudinal) Mode
≤ 5%
1.0kV Series (Transverse) Mode
≤ 5%
Electrostatic Discharge -
IEC 60255-22-2 Class 3
Variation
6kV contact discharge
≤ 5%
8kV air discharge (to fascia)
≤ 5%
Radio Frequency Interference -
IEC 60255-22-3 Class III
Variation
80MHz to 1000MHz, 10V/m
≤ 5%
©2011 Siemens Protection Devices Limited Chapter 2 Page 7 of 9
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