FCC ID: 2BX7P-DGB-63TT WIFI Smart Circuit Breaker

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Yueging Nanchao Electric Co., Ltd Add: No. 360, Jingqi Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang, China Date: 2026-9-18 FCC ID: 2BX7P-DGB-631T Dear Sir/Madam, We, Yueqing Nanchao Electric Co., Ltd Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model:

Product name: WIFI Smart Circuit Breaker Model no. DGB-63TT,DGB-63T,DGB-63TM,DGB-63TD, DGB-63Z, DGB-63ZM, DGB-63ZT,DGB-

63E,DGB-63ET, DGB-D40T, DGB-P63TT, DGB-P63TD, DGC-63T, DG Y-L4T, DGY-NL4,DGY-

L4EE,DGY-NL4EE, DGB-40T, DGB-40TT, DGB-40ET, DGB-S63T,DGB-S63TM, DGB-S63TT,DGB-

S63E,DGB-S63ET, DGLBD-125/2W,DGLBD-125/4W Sincerely, Wei Now Name/Title: Wei Nan/manager Company: Yueging Nanchao Electric Co., Ltd Address: No. 360, Jinggi Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang, China Phone: 13603034005 Fax:

E-Mail: [email protected]

Yueqing Nanchao Electric Co,, Ltd No. 360, Jingqi Road, Yueging Economic Development Zone, Wenzhou,Zhejiang, China Date: 2026-9-18, FCC ID: 2BX7P-DGB-631T Model Number:

DGB-63TT, DGB-63T, DGB-63TM, DGB-63TD, DGB-63Z, DGB-63ZM, DGB-63Z1T, DGB-6 3E,DGB-63ET, DGB-D40T, DGB-P63TT, DGB-P63TD, DGC-63T, DGY-L4T, DGY-NL4,D GY-L4EE, DGY-NI4EE DGB-40T, DGB-40TT, DGB-40ET, DGB-S63T, DGB-S63TM,DGB

-863TT, DGB-S63E, DGB-S63ET, DGLBD-125/2W, DGLBD-125/4W To:

Federal Communications Commission Authorization and Evaluation Di 7435 Oakland Mills Road Columbia, MD To Whom It May Concern, We, Yueqing Nanchao Electric Co., Ltd, declare that this FUT (FCC ID:

2BX7P-DGB-63TT) doesnt have Ad Hoc mode function on non-US/Canada frequencies. In addition. The frequency selection feature is disabled by firmware for devices marked to the US/Canada. For DTS part of this device, only channels 1-11 will be used in North America, Country code selection is disabled. Should you have any questions or comments regarding this matter, please have my best attention, Sincerely, Wei Now Name/Title: Wei Nan/manager Company: Yueqing Nanchao Electric Co,, Ltd Address: No. 360, Jinggi Road, Yueqing Economic Development Zone, Wenzhou Zhejiang, China Phone: 13603034005 Fax E-mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following product FCCID Model name 2BX7P-DGB-63TT DGB-63TT, DGB-63T,DGB-63TM,DGB-

63TD,DGB-63Z,DGB-63ZM,DGB-63ZT,DGB-

63E,DGB-63ET, DGB-D40T,DGB-P63TT,DGB-

P63TD,DGC-63T, DGY-LAT,DGY-NL4,DGY-

L4EE,DGY-NL4EE,DGB-40T,DGB-40TT,DGB-

AQET,DGB-S63T,DGB-S63TM,DGB-

S63TT,DGB-S63E,DGB-S63ET, DGLBD-

125/2W,DGLBD-125/4W_ For the products listed above, we request permanent confidentiality for all applicable exhibits as there are:

* the Operational Description the Block Diagram the Schematics the Parts Lists the Tune Up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date: 2026-9-18 Printed Name of Signee: Wei Nan/manager Company: Yueqing Nanchao Electric Co., Ltd Address: No. 360, Jingqi Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang, China Phone: 13603034005 Fax:

Email: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commissions Rules (47 C.F.R.) we attest as follows for the product listed below:

FCCID | Model name 2BX7P-DGB-63TT DGB-63TT, DGB-63T,DGB-63TM,DGB-

63TD,DGB-63Z,DGB-63ZM,DGB-63ZT,DGB-

63E,DGB-63ET, DGB-D40T,DGB-P63TT,DGB-

P63TD,DGC-63T, DGY-LAT, DGY-NL4,DGY-

L4EE,DGY-NL4EE,DGB-40T,DGB-40TT,DGB-

AQET,DGB-S63T,DGB-S63TM,DGB-

S63TT,DGB-S63E,DGB-S63ET,DGLBD-

125/2W,DGLBD-125/4W_ We, Applicant, Company Name: | Yueqing Nanchao Electric Co., Ltd Address: | No. 360, Jingqi Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang, China Phone: | 13603034005 certify that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees. We certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date: 2026-9-18 Printed Name of Signee: Wei Nan/manager Company: Yueqing Nanchao Electric Co., Ltd Address: No. 360, Jingqi Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang, China Phone: 13603034005 Fax:

Email: [email protected]

Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commissions Rules (47 C.F.R.) we attest as follows for the product listed below:

FCC ID | Model name 2BX7P-DGB-63TT DGB-63TT,DGB-63T, DGB-63TM, DGB-

63TD, DGB-63Z,DGB-63ZM, DGB-63ZT, DGB-

63E, DGB-63ET, DGB-D40T, DGB-P63TT,DGB-

P63TD,DGC-63T,DGY-L4T, DGY-NL4, DGY-

L4EE, DGY-NL4EE, DGB-40T, DGB-40TT, DGB-

4QET,DGB-S63T, DGB-S63TM,DGB-

S63TT, DGB-S63E,DGB-S63ET, DGLBD-

125/2W,DGLBD-125/4W We hereby acknowledge as follows:

i. both signees confirm that the point of contact accepts responsibility to act as a US-

American Representative on behalf of the applicant ii. the point of contact provides the physical U.S. address and email as listed below iii. both parties maintain the requirements of this agreement for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. iv. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. US-American Point of Contact Applicant/Approval Holder Wei Now

{ _otee 6 Signature ere 2026-9-18 Signature Date: 2026-9-18 Company Name: HOORAY INDUSTRY LLC Yueqing Nanchao Electric Co., Ltd FRN: 0033926106 0038874376 Contact Name: Cindy Wu Wei Nan Address: 1408 Pinon Place Fullerton, CA No. 360, Jinggi Road, Yueqing 92835 United States Economic Development Zone, Wenzhou,Zhejiang, China Phone: (626) 910-5808 13603034005 Email: [email protected] [email protected]