T-Code of enclosure

timchengyong

Member
Location
China
Greetings! I am confused by a dual markings of below picture. It can be used in C1D1 and C1D2 location as UL approval, but refer to ATEX certificate, it is a U-certificate component, can't be used in Zone area directly. So what's wrong with it? IMG_20210904_170629.jpg
 

Jimmy B

Member
Location
Canada
Occupation
Electrician/Technologist
The enclosure seems fine for ATEX, I don't see the issue. I'm guessing you are referencing the 1025U number? I don't know what that means, but the main ATEX code II 2G Ex d IIB means it is good for Zone 1 & 2 for group A & B gases (basically everything but Acetyline and Hydrogen). Maybe if you clarify your question?
 

rbalex

Moderator
Staff member
Location
Mission Viejo, CA
Occupation
Professional Electrical Engineer
The important question is, “Where is this going to be installed?” One of the nameplates may be useless. An ATEX rating means absolutely nothing in US domestic installations. A UL “Classified” rating means nothing in ATEX jurisdictions. It also has a very limited meaning in US domestic jurisdictions where it means it must be part of a specific assembly of components. The CSA rating permits broader application in Canada (which does recognize ATEX) but not the US.
 

timchengyong

Member
Location
China
The important question is, “Where is this going to be installed?” One of the nameplates may be useless. An ATEX rating means absolutely nothing in US domestic installations. A UL “Classified” rating means nothing in ATEX jurisdictions. It also has a very limited meaning in US domestic jurisdictions where it means it must be part of a specific assembly of components. The CSA rating permits broader application in Canada (which does recognize ATEX) but not the US.
It's installed in C1D2 location, Yes, it is certified as components. I want to konw what's the limitation for classified parts when using in hazardous location? if it can be site certificated T-code with assembly? Thanks!
 

rbalex

Moderator
Staff member
Location
Mission Viejo, CA
Occupation
Professional Electrical Engineer
It's installed in C1D2 location, Yes, it is certified as components. I want to konw what's the limitation for classified parts when using in hazardous location? if it can be site certificated T-code with assembly? Thanks!
Answer my question, “Where is this going to be installed?”, and we may be able to answer yours.
 

Jimmy B

Member
Location
Canada
Occupation
Electrician/Technologist
rbalex, as a passing comment, he mentioned C1D2. :)

It sounds to me like the OP is wondering what can be installed inside? Are you putting in some electronic component that generates heat? Also, the ATEX certificate and your question about the T-code are irrelevant if it's installed in Class 1 Div 2. All that matters is the UL certification. Pretend it has no ATEX markings at all.
 

rbalex

Moderator
Staff member
Location
Mission Viejo, CA
Occupation
Professional Electrical Engineer
rbalex, as a passing comment, he mentioned C1D2. :)

It sounds to me like the OP is wondering what can be installed inside? Are you putting in some electronic component that generates heat? Also, the ATEX certificate and your question about the T-code are irrelevant if it's installed in Class 1 Div 2. All that matters is the UL certification. Pretend it has no ATEX markings at all.
Yes, he did. It still matters what jurisdiction it’s being installed under.

Since he mentioned C1D2, ATEX is useless - so there’s nothing to pretend.

If it is a US jurisdiction the component must be a part of a specific listed assembly which will have its own nameplate and will indicate its “T-Code”. If it’s a non-US jurisdiction that “kinda/sorta” uses the NEC and he’s trying to find out the component’s “T-Code” in a non-listed assembly then he will need to contact the manufacturer - there’s no practical way we can answer it here.

Can it be site-certified? Possibly; it will be up to the certifying agency AND THE JURISDICTION IT WILL BE INSTALLED UNDER.
 

timchengyong

Member
Location
China
Yes, he did. It still matters what jurisdiction it’s being installed under.

Since he mentioned C1D2, ATEX is useless - so there’s nothing to pretend.

If it is a US jurisdiction the component must be a part of a specific listed assembly which will have its own nameplate and will indicate its “T-Code”. If it’s a non-US jurisdiction that “kinda/sorta” uses the NEC and he’s trying to find out the component’s “T-Code” in a non-listed assembly then he will need to contact the manufacturer - there’s no practical way we can answer it here.

Can it be site-certified? Possibly; it will be up to the certifying agency AND THE JURISDICTION IT WILL BE INSTALLED UNDER.
Thanks for your clarification. It's installed in offshore oil & gas platform in China. The platform was desiged as API500, API14F standards. My further question is if all the UL certified parts need a assembly certificate including outlet boxes of conduit wiring?
 

timchengyong

Member
Location
China
rbalex, as a passing comment, he mentioned C1D2. :)

It sounds to me like the OP is wondering what can be installed inside? Are you putting in some electronic component that generates heat? Also, the ATEX certificate and your question about the T-code are irrelevant if it's installed in Class 1 Div 2. All that matters is the UL certification. Pretend it has no ATEX markings at all.
Yes. I want to have a guideline regarding UL classified parts using in hazadous location. Maybe is complex in different case. in different area, or different assembly. Thanks!
 
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