ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
twh 10
Admin 4
Recent Posts
Correct rotation, wrong sequence
by SteveFehr. 05/26/17 05:27 PM
Dryer, Range grounding from "Main" panel
by sparkync. 05/25/17 05:49 PM
210.70 / Wall Switch / When adopted?
by gfretwell. 05/24/17 09:18 PM
Any UL 508 experts out there?
by sparkyinak. 05/23/17 11:04 PM
Heat pump conundrum
by sparkyinak. 05/21/17 08:49 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
236,833 Are you busy
171,851 Re: Forum
164,755 Need opinion
Who's Online Now
0 registered members (), 45 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#15604 - 10/23/02 04:28 PM Device grades  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
When did commercial, specification, residential, hospital-grade/green dot devices make their appearance?

Were devices graded in any other way prior to this for different anticipated usage?


Work Gear for Electricians and the Trades

#15605 - 10/23/02 04:46 PM Re: Device grades  
spyder  Offline
Member
Joined: Oct 2002
Posts: 210
Massachusetts
I am not sure when the classifications came to be. But I can tell you that I find using commercial grade recptacles over spec grade to be worth the extra money.


#15606 - 10/23/02 05:20 PM Re: Device grades  
SvenNYC  Offline
Member
Joined: Aug 2002
Posts: 1,691
New York City
Isn't commercial and spec. grade. the same?

I thought the noticable difference is between "residential" grade (the cheap, easily cracked devices in the 89 cent bins at the big orange store) and spec. grade and above.

I avoid residential grade devices like the plague, especially Leviton-branded ones.


#15607 - 10/23/02 06:01 PM Re: Device grades  
JBD  Offline
Member
Joined: Jul 2001
Posts: 599
WI, USA
There are no industry definitions of phrases like spec-grade , residential, or commercial. (Hospital grade is defined though.) There are some features we have come to expect in different grades but it is still judgemental.

These are simply marketing terms for expensive, cheap, and something in between.

In fact Hubbell calls most of their straight blade receptacles "specification grade".
HBL5262 - Heavy duty, Specification Grade
HBL5252 - Compact, Heavy Duty, Specification Grade
CR5252 - Heavy duty, Specification Grade, Construction and Commercial Series.

[This message has been edited by JBD (edited 10-23-2002).]


#15608 - 10/23/02 06:16 PM Re: Device grades  
spyder  Offline
Member
Joined: Oct 2002
Posts: 210
Massachusetts
JBD,
I think your right about the definitions. Manufacturers have different terms for the grade difference in devices. I personally use a lot of Leviton devices, so I guess I was saying that I prefer the CR-15 (commercial specification grade) to the 5320 (residential grade).


#15609 - 10/24/02 01:38 AM Re: Device grades  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Paul,
What exactly are we talking about, here?
Devices, Green Dots?, please expand. [Linked Image]


Let's face it, these days if you're not young, you're old - Red Green grin

#15610 - 10/24/02 01:56 PM Re: Device grades  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
Thanks guys. I can't say I really noticed the different names used by various manufacturers == I'll have to take a closer look in my Graybar catalog and compare Hubbell, Leviton, etc.

Trumpy,
We're talking about the grade, or quality specification which American receptacles and switches are sold under. Hospital grade recepts. are the highest quality, and are marked with a green dot on the face.

Correct me if I'm wrong folks, but don't hospital-grade devices have to meet certain criteria for minimum tension on the contacts after X insertions/withdrawals?



Member Spotlight
Attic Rat
Attic Rat
Bergen Co.,N.J. USA
Posts: 524
Joined: December 2003
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.012s Queries: 14 (0.002s) Memory: 0.7840 MB (Peak: 0.9354 MB) Zlib enabled. Server Time: 2017-05-26 22:38:54 UTC