This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
Issue:
Meaning of ANSI 50LR
Product Line:
Easergy P3 protection function
Resolution:
- In protection, ANSI code 50 refers to instantaneous operation which means that the action should be carried out as fast as possible with no delay. Meanwhile ANSI code 51 refers to time delayed operation.
- ANSI 50LR is simply an instantaneous overcurrent protection stage that is blocked during motor start.
- Locked rotor protection function in Easergy P3 protection relays (P3U10/20/30, P3M30, P3M32) is achieved by ANSI code 51LR with minimum time delay of 1 sec.
Meaning of ANSI 50LR
Product Line:
Easergy P3 protection function
Resolution:
- In protection, ANSI code 50 refers to instantaneous operation which means that the action should be carried out as fast as possible with no delay. Meanwhile ANSI code 51 refers to time delayed operation.
- ANSI 50LR is simply an instantaneous overcurrent protection stage that is blocked during motor start.
- Locked rotor protection function in Easergy P3 protection relays (P3U10/20/30, P3M30, P3M32) is achieved by ANSI code 51LR with minimum time delay of 1 sec.
Released for: Schneider Electric Egypt and North East Africa
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