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1.2
Inputs and Outputs
1.2.1
Auxiliary Power Supply
Nominal
V
30, 48, 110, 220 VDC
AUX
1.2.1.1
Burden
Attribute
30V DC
48V DC
110V DC
220V DC
Typical for relay size E8
When supplied with additional Ethernet communication interface the above burdens are increased by 2.5W.
1.2.1.2
DC Supply Variation
IEC 60255-6, IEC 60255-11,
Quantity
Allowable superimposed ac component
Allowable breaks/dips in supply
(collapse to zero from nominal voltage)
©2013 Siemens Protection Devices Limited
Operating Range
24 to 290 VDC
Value
Quiescent (typical)
7.5W
Quiescent (backlight)
9.0W
Quiescent (typical)
7.3W
Quiescent (backlight)
8.8W
Quiescent (typical)
6.8W
Quiescent (backlight)
8.1W
Quiescent (typical)
6.4W
Quiescent (backlight)
7.7W
Chapter 3) 7SR23 DAD Performance Specification
Value
12% of DC voltage
50ms
Chapter 3 Page 5 of 20
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