7SG12 DAD N Performance Specification
8kV contact discharge
≤ 5%
Conducted & Radiated Emissions -
EN 55022 Class A (IEC 60255-25)
Conducted 0.15MHz – 30MHz
Radiated 30MHz – 1GHz
Conducted Immunity -
(IEC 61000-4-6; IEC 60255-22-6)
Variation
0.15MHz – 80MHz 10V rms 80% modulation
≤ 5%
Radiated Immunity -
IEC60255-22-3 Class III
Variation
80MHz to 1000MHz, 10V/m
80% modulated
≤ 5%
Fast Transient – IEC 60255-22-4 Class IV
Variation
4kV 5/50ns 2.5kHz repetitive
≤ 5%
Surge Impulse -
IEC 61000-4-5 Class IV; (IEC 60255-22-5)
Variation
4KV Line-Earth (O/C Test voltage 10%)
2KV Line-Line
≤ 10
Vibration (Sinusoidal) –IEC 60255-21-1 Class 1
Variation
Vibration response 0.5gn
≤ 5%
Vibration endurance 1.0gn
≤ 5%
Shock and Bump–IEC 60255-21-2 Class 1
Variation
Shock response 5 gn 11ms
≤ 5%
Shock withstand 15 gn 11ms
≤ 5%
Bump test 10 gn 16ms
≤ 5%
Seismic – IEC 60255-21-3 Class 1
Variation
Seismic Response 1gn
≤ 5%
Mechanical Classification
Durability
In excess of 10
6
operations
4.2 Auxiliary Energizing Quantity
DC Power Supply
Nominal Operating Range
24/30V 18V to 37.5V dc
50/110V 37.5V to 137.5V dc
220/250V 175V to 286V dc
Auxiliary DC Supply – IEC 60255-11
Allowable superimposed ac component
≤ 12% of DC voltage
Allowable breaks/dips in supply (collapse to zero
from nominal voltage)
≤ 20ms
D.C. Burden
Quiescent (Typical) 15
Max 27
©2010 Siemens Protection Devices Limited Chapter 2 Page 4 of 7
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