[RE-wrenches] Flammable Vapor Ignition Resistant

[Chris Schaefer]

So Sue, where does the MN PowerFlo 16 product stand in regards to class I,
div II rating?

Christopher

On Wed, Sep 10, 2025 at 6:58 AM Sue Stankevitz via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> They may be looking for the Class 1 Div 2 rating with means that it has
> been designed to safely operate in environments where flammable vapors or
> gases exist and have the potential to rise to ignitable concentrations.
> Midnite had to get a charge controller certified to that standard several
> years ago.
>
>
>
> Sue Stankevitz
> MidNite Solar, Inc. <https://www.midnitesolar.com/index.php>
> (360) 403-7207 (XT122)
>
>
>
> *From:* RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> *On
> Behalf Of *Jay via RE-wrenches
> *Sent:* Tuesday, September 9, 2025 6:27 PM
> *To:* RE-wrenches <re-wrenches at lists.re-wrenches.org>
> *Cc:* Jay <jay.peltz at gmail.com>
> *Subject:* Re: [RE-wrenches] Flammable Vapor Ignition Resistant
>
>
>
> What would be the rating for that?
>
>
>
> Is it a NEMA or?
>
>
>
> Jay
>
>
>
> On Sep 9, 2025, at 3:08 PM, Glenn via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
>
> Unfortunately  codes and standards are constantly changing and inspectors
> are trying to catchup and interpret them as quickly as possible to ensure
> compliance for safety sake.
>
> Erring on the side of safety is their job until educated otherwise
>
>
>
> -Glenn
>
>
>
> On Sep 9, 2025 17:00, Jason Szumlanski via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>
> That's a first for me. The Enphase battery is sealed, but I don't know if
> that qualifies as sealed against vapor.
>
>
>
> I'd reach out to Enphase to get some guidance on that. It's always
> something with these AHJs.
>
>
> Jason Szumlanski
>
> Principal Solar Designer | Florida Solar Design Group
> NABCEP Certified Solar Professional (PVIP)
> Florida State Certified Solar Contractor CVC56956
>
> Florida Certified Electrical Contractor EC13013208
>
>
>
>
>
> On Tue, Sep 9, 2025 at 4:13 PM Zeke Yewdall via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> My interpretation of this is that he wants to make sure that the battery
> cannot ignite a flammable vapor cloud from gasoline being spilled in
> the garage.  If he's saying that no electrical equipment that might create
> a spark (such as with a relay or switch or circuit breaker) can be below
> 18", that may be the case.   I might be completely off base here, but I
> don't think it has anything to do with it being a battery really, but just
> a piece of electrical equipment that might have relays or sparking things
> inside?  Maybe?  In which case... does the 5p have any relays or
> contactors, or is it's BMS all solid state?  And second question would be
> can you document that.
>
>
>
> Zeke
>
>
>
> ---------------------------------
>
> Seeking your suggestions and direction. My AHJ - after acknowledging that
> the Enphase 5p battery has a floor mount option - now insists that it must
> be 18-inches above the garage floor unless I can produce something that
> says it is "Flammable Vapor Ignition Resistant."
>
> We all know there is no open flame from an ESS and I know the 9540A
> depicts a battery at 6-inches.
>
> Anybody run into this and have suggestions on what I might show back to
> the AHJ?
>
> Howard "Scot" Arey
> Owner, Solar CenTex
>
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-- 

Chris Schaefer’s


*Tel 585-229-2083 or Cell 585-748-1870 *
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