Insights & Tips

Majortel Distribution Breaker – Technical Bulletin

Technical Bulletin TB-018 for Majortel Power System Breaker

Distribution Circuit Breakers Insertion Procedure

1.  When inserting the distribution circuit breaker into the respective terminals, both spades may not fully seat in the female terminals and the auxiliary alarm spades are at high risk of being bent and/or broken during insertion.

• In some cases, this lack of attention to detail at application prep has caused auxiliary alarm terminals to break and voltage terminals to bend.
• The standard warranty does not cover bent or broken terminals on a breaker’s body nor on a circuit panel.

2.  The micro-distribution circuit breakers for the Majortel System(MTS) are unique in that they utilize small, spaded terminals for voltage throughput and, even smaller, spaded terminals for alarm sensory activation. It is imperative that the installer take the time to understand this installation process and potential trouble points before attempting breaker insertion.

Download technical bulletin TB-018 for complete details and illustrations before starting field configurations.