Relay Case Shorting Contacts - Siemens 7SR21 Manual

1.7

Relay Case Shorting Contacts

CT inputs and terminals B25-B26 (Relay Withdrawn Alarm) are fitted with case mounted shorting contacts which
provide a closed contact when the relay is withdrawn from the case. The operation of these contacts should be
checked.
CT Shorting contacts checked
Relay Withdrawn Alarm Checked
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7SR21 & 7SR22 Argus Commissioning and Maintenance
Chapter 6 Page 12 of 69