Maintenance Mode Switch (MMS) Installation Instructions
The maintenance mode setting (MMS) switch is designed to temporarily reduce the short-time delay setting of the circuit breaker MMS is installed, ZSI cannot be applied for short-time on the same circuit breaker. Either solution (ZSI or MMS) meets the National Electrical Code (NEC) 240.87 requirements for arc flash reduction.
Date:
Jan 01 2025
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Type:
Instruction Sheet
Languages:
English, French, Spanish
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Version:
02
Document Number:
MFR70008