New ABLOY USA Critical Infrastructure Key-In-Knob Cylinder earns UL Listed Mark


January 12, 2021 – ABLOY USA Critical Infrastructure is introducing the new CY436T Key-In-Knob cylinder which bears the prestigious UL Listed Mark. The latest ABLOY® PROTEC2 key system with the UL Mark, ABLOY is the only hybrid high security solution that offers mechanical, electro-mechanical and Bluetooth products.

”Critical Infrastructure projects often prove to be very complicated,” acknowledged Jerry Burhans, Managing Director of ABLOY USA Critical Infrastructure. ”These type of projects are usually spread out over vast, remote areas incorporating unmanned locations requiring a multitude of technologies. We have the ability to provide products – such as the new CY436T door cylinder – that meet the very best standards in the industry. Projects that require the UL437 security rating will now be able to look to ABLOY for a complete, high security cylinder solution.”

Underwriters Laboratories is recognized as a global safety science leader that helps companies demonstrate safety, strength security, manage risk and achieve regulatory compliance. The UL 437 security rating is regarded as a standard of safety for key locks. Products designated with the UL Listed Mark are considered to have representing samples that have been evaluated by UL and meet applicable safety standards.

Joining the ABLOY Protec2 family of ANSI North American cylinders puts the CY436T in good company. ABLOY’s patented rotating disc technology offers simple and reliable functionality, even in extreme environments. Designed to retrofit cylindrical locksets, padlocks and deadbolts, it features the durability of brass construction and can be operated with just a single key.

To place an order or for more information, email ABLOY USA:

About ABLOY USA Critical Infrastructure

ABLOY USA Critical Infrastructure is a performance partner for critical infrastructure customers. We provide critical asset security and remote access management solutions, minimizing security risks and increasing the efficiency of processes at critical infrastructure owned by governments and businesses globally. Visit for more information.