The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Parking lot pole light swap....
by gfretwell
10/24/16 08:46 PM
International Wire Colour Codes
by Tjia1981
10/23/16 12:08 PM
Son of Sparky
by HotLine1
10/20/16 07:43 PM
Speaking of Plugmold ...
by gfretwell
10/17/16 02:37 PM
Broken battery charger? Check for cobwebs!
by gfretwell
10/17/16 02:30 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 14
HotLine1 7
ghost307 7
renosteinke 6
Potseal 4
Who's Online
1 registered (ampherder), 281 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#14363 - 09/19/02 03:20 PM HVAC marked circuit breakers
Frank Cinker Offline

Registered: 07/29/01
Posts: 317
Loc: Pennsylvania
If a circuit breaker is used as an overcurrent protective device for air conditioning equipment must it be marked "HVAC"?
I've searched Article 240 and could not locate that as a requirement.
I found SWD and HID marked circuit breakers (NEC 240.83(D) but no requirement for HVAC.

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#14364 - 09/19/02 03:42 PM Re: HVAC marked circuit breakers
HotLine1 Offline


Registered: 04/03/02
Posts: 6792
Loc: Brick, NJ USA
I can't give articles as my NEC is at the office.
The nameplate that is on the condenser unit, states either FUSE or HACR CB as the required overcurrent protection required for each unit.
We have to follow the mfg instructions, and use the nameplate data.
IF it says "fuses" then the circuit must be protected by fuses. If it says "HACR CB" then a HCAR CB in the panel and a non-fused disco at the unit.
Somebody post the articles please.

The above is stated IMHO, as "Sparky66WV says


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals