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Siemens Argus 7SR22 User Manual

Siemens Argus 7SR22
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7SR210 & 7SR220 Description of Operation
Unrestricted ©2018 Siemens Protection Devices Limited Page 10 of 94
Figure 1.5-1 Functional Diagram of 7SR21 Relay

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Siemens Argus 7SR22 Specifications

General IconGeneral
TypeFeeder Protection Relay
Frequency50/60 Hz
Binary OutputsUp to 8
Current Inputs1 A or 5 A
CommunicationEthernet, RS485
ProtocolsModbus, DNP3
Protection FunctionsOvercurrent, Earth Fault, Thermal Overload
Operating Temperature-25 to +70 °C
Humidity5 to 95% non-condensing

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