Plenum Ratings for Cable Ties

UL AH-1 & AH-2 Certification

In the United States & Canada, cable ties installed in areas used for the exchange of environmental air (air-handling spaces or “plenums”) are required to be classified as AH-1 or AH-2. UL 62275 includes a Smoke and Heat Release Test which results in a specific minimum index of characteristics. This index is in line with the national mechanical installation codes.

1. The peak heat release rate shall be ≤ 100 kW
2. The peak normalized optical density shall be ≤ 0.5
3. The average normalized optical density shall be ≤ 0.15

The plenum ratings according to product type are:
　　　　　　　　　　　　

Product Type	Plenum rating
Metallic Cable ties and Fixing Devices	AH-1
Non-metallic or Composite Cable ties and Fixing Devices	AH-2

We have comprehensive range of plenum rated products, please contact us for more information.

Updated 2019/1/17

New Product

Cable Tie Holder
TEFZEL® Cable Ties

Plenum Ratings for Cable Ties | Over 40 Years Stainless Steel & Releasable Cable Ties Manufacturer | HUA WEI

Located in Taiwan since 1976, HUA WEI INDUSTRIAL CO., LTD. has been a plastic and stainless steel cable ties manufacturer. Their main cable ties, include plastic cable ties, stainless steel cable ties, heavy duty cable ties, cable markers, security seals, fasteners, cable clips, cable clamps, tie mounts and cable tie accessories, which are IATF 16949 and ISO certified and meet RoHS and REACH standards.

With more than 45 years' experience in designing and manufacturing of cable ties, Hua Wei's products have gained UL, CSA, GL, CE, and CQC accreditation and of high quality and suitable to apply to all kinds of severe industrial environments. Rich experience and specialty of precise molding wit engineering plastic polyamide 6,6. Advanced molding facilities, and outstanding R&D teamwork.

HUA WEI has been offering customers high-quality cable ties worldwide, both with advanced technology and 45 years of experience, HUA WEI ensures each customer's demands are met.