That is what the fail safe parts in the 4800-AK are for. The kit supplies the fail safe plunger with spring and the fail safe cam, which are the components that change how a 4800 Series strike behaves when power is lost. Mounting screws, wire connector and wire caps are included so the strike can be reassembled and wired back up.

The 4800-AK is only a kit of replacement parts - a fail safe plunger with spring, a fail safe cam, six Trine patented anchoring pins, a wire connector, two wire caps and two mounting screws. It contains no strike body. If the opening needs a complete unit, the Adams Rite 7400A Series Ultraline electric strike body kit is a full strike body with field selectable fail safe or fail secure operation.

No. The 4800-AK is a replacement parts kit built for the Trine 4800 series, and its fail safe plunger with spring and fail safe cam are machined for that strike body. The Adams Rite 7400A Series Ultraline electric strike body kit is field selectable between fail safe and fail secure operation on its own, so it is changed over using its own built-in selector rather than by fitting Trine components into it. Keep the 4800-AK with 4800 series hardware.

It is built for the Trine 4800 Series. The plunger, cam and anchoring pins are sized to that strike body, so treat it as a 4800 Series part and not a universal accessory kit.

Neither should be specified on a fire rated opening on the basis of a fire label. The Adams Rite 7400A Series Ultraline strike body kit carries a fire rating of No. The Trine 4800-AK is a commercial replacement parts kit for 4800 series electric strikes rather than a rated assembly in itself. For labeled openings, confirm the rating of the complete strike and frame assembly being installed.

They are different product families and should not be treated as interchangeable without verifying the frame prep. The 7400A is an Adams Rite 7400 Series Ultraline strike body, while the 4800-AK is tied to the Trine 4800 series. Cutout dimensions, faceplate footprint and wiring terminations differ between manufacturers, so swapping families usually means reworking the frame rather than dropping a new body into the existing prep.

They are Trine's patented anchoring pins, used to secure the strike in the frame. Six ship in the 4800-AK, so a strike that was pulled, relocated, or lost pins during a retrofit can be re-anchored without sourcing them one at a time.

Yes. The Trine 4800-AK is a commercial door hardware item, part of the electronic access control side of the line rather than a residential accessory.