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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 | Type: Instruction Sheet
Languages: English, French, Spanish | Version: 02
Document Number: MFR70008

Files

File Name
MFR70008.pdf.pdf

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