mvannevel
Senior Member
- Location
- Hesperia, Michigan
I have in front of me, a T&B circuit breaker which states that it is, "Classified by UL for use in UL Listed panelboards by Challenger, GE, Murray, Siemens, Thomas & Betts, and Westinghouse, in place of UL Listed circuit breakers listed below". Now, the UL product marking states, "This circuit beaker is Listed for use in circuit breaker enclosures and panelboards intended and marked for its use. This circuit breaker is Classified for use, where the available short-circuit current is 10kA, 120/240 V ac or less, in the compatible panelboards shown in Publicaction No. T5651B63 provided with this circuit breaker". My understanding is that although UL has tested this breaker in these panels and found it suitable, it can only be used in them if these panel manufacturers specifically list it suitable for replacement use. Am I all wet on this? My other inspectors and I turn down all installations when we find a breaker like this in a panel. Any clarification would be appreciated.
[ May 08, 2003, 07:56 AM: Message edited by: mvannevel ]
[ May 08, 2003, 07:56 AM: Message edited by: mvannevel ]