240.83(D) Used as Switches?

[anbm]

240.83(D) Used as Switches. Circuit breakers used as switches in
120-volt and 277-volt fluorescent lighting circuits shall be
listed and shall be marked SWD or HID. Circuit breakers
used as switches in high-intensity discharge lighting circuits
shall be listed and shall be marked as HID.


Under what application do we use above breakers without installing a light switch or timer downstream of them?

 

[Pierre C Belarge]

Warehouses and larger occupancies such as those, is an example.
Also see them in small stores where they enter the back door and leave by the back door.

 

[infinity]

Aren't most new circuit breakers listed as such?

 

[cpal]

not sure about the swd but, I thought UL 489 included HACR as part of its listing for all inverse trip as of a Code cycle or two past.

 

[Dennis Alwon]

All breakers I have used- resi guy here- are marked swd.

 

[telectric]

I have found and installed this configuration in stores and restaurants, not used everywhere in these locations, but in a shoe store, they were installed for all of the window show lighting and wall lighting - eliminated the need for switches, used switches for the overhead lighting.

 

[jim dungar]

Aren't most new circuit breakers listed as such?

No.

SWD only applies to 15 and 20A 120V and 277V breakers.

HID can be applied to most breakers up to 60A. Most manufacturers charge extra for HID ratings.