DO NOT REMOVE TERMINAL BOX COVER DURING SERVICE OR MAINTENANCE, UNLESS MAIN POWER IS SWITCHED OFF.
This safety notice is about a potential safety hazard (electrical shock) during service or maintenance operations on the product “MLE Model F motor” size (15-30 hp), manufactured since April 3, 2017. These motors are used with CRE, MTRE, and multi-pump boosters.
We have become aware of incidents where service on MLE model F has been performed while having the terminal box cover removed and main power connected (ON). Such procedure is not in accordance with Grundfos Service Instructions and poses a safety risk due to potential exposure to live 480V terminals.
IMPORTANT: All service or maintenance operations that require removal of terminal box cover shall only be performed with power OFF and only by specifically trained personal and in accordance with locally applicable health and safety rules and regulations on electrical work.
Further, it must be observed that live parts can be dangerous to touch up to 30 minutes after disconnection. Reference is made to Grundfos Service instructions which must be observed:
If you have any questions about this information, please contact your local Grundfos sales company.