Folger Adam 310/2 Electric Strike: Vertical Rod Exit Device Guide

310/2 electric strike is the Folger Adam designation for the surface-mounted electric strike specifically designed for surface vertical rod (SVR) and concealed vertical rod (CVR) exit devices on commercial door openings. Where the companion 310/4 serves rim exit device applications, the 310/2 serves paired door and vertical rod hardware configurations that represent a significant portion of commercial egress openings. Understanding the difference between these two Folger Adam variants prevents the most expensive and time-consuming error on access control projects: ordering the wrong strike for the exit device configuration on the door.

What Makes the 310/2 Different From the 310/4

Both the 310/4 and 310/2 are surface-mounted electric strikes from Folger Adam (now manufactured under ASSA ABLOY's HES brand family). The fundamental difference is the latch type they accept:

310/4: Accepts a Pullman latch from a rim exit device. The latch projects horizontally from the rim device body into the strike keeper.

310/2: Accepts the top latch bolt from a surface vertical rod or concealed vertical rod exit device. On SVR and CVR exit devices, the top rod terminates in a latch bolt that engages the head strike at the frame header. The 310/2 replaces the fixed head strike and adds electric release capability to this top latch engagement point.

This means the 310/2 mounts at the door header (top of the frame), not at the standard lock height on the frame stile. This mounting location is the first thing an installer needs to confirm before ordering.

Exit Device Configurations Where the 310/2 Applies

The 310/2 is the correct electric strike for:

• Von Duprin 9927 and 9827 surface vertical rod exit devices (top latch bolt)

• Sargent 8700 Series SVR exit devices

• Corbin Russwin ED5400 SVR exit devices

• CVR exit devices including Von Duprin 7827 and Sargent 7700 Series

• Any paired door exit device where the inactive leaf uses vertical rod hardware

On paired door openings where both the active and inactive leaves carry exit devices, the 310/2 on the inactive leaf head strike enables coordinated electric release of both leaves through a single access control signal. This is the specification for school main entries, hospital main entries, and any paired glass or aluminum door requiring synchronized electric release.

Specifications and Electrical Data

The Folger Adam 310/2 confirmed specifications:

• Application: SVR and CVR exit devices, top latch bolt

• Mounting location: Frame header

• Static strength: 1,500 lbs

• Dynamic strength: 70 ft-lbs

• Cycle rating: 500,000 cycles

• Voltage: 12VDC or 24VDC, field selectable

• Function: Fail safe or fail secure, field selectable

• Listing: UL 1034 listed

• Handing: Non-handed

Why American Locksets for 310/2 Projects

The Folger Adam 310/2 is stocked in the electric strikes section at American Locksets alongside the 310/4 and other ASSA ABLOY HES electric strikes. For paired door projects where the 310/2 installs at the header alongside exit hardware from Von Duprin or Sargent, both ship on one authorized dealer order. Call 877-471-4870 with the exit device model to confirm the correct 310 series variant before ordering.

Conclusion

The Folger Adam 310/2 is the electric strike for surface and concealed vertical rod exit devices, mounting at the frame header to release the top latch bolt electrically. Field selectable for fail safe and fail secure on 12 or 24VDC. Static strength 1,500 lbs, 500,000 cycle rating, UL 1034 listed. For rim exit device applications, specify the 310/4 instead. American Locksets stocks both variants. Call 877-471-4870 or visit the electric strikes section.

FAQs

What is the Folger Adam 310/2 for? 

Surface vertical rod and concealed vertical rod exit devices. It releases the top latch bolt electrically at the frame header.

Where does the 310/2 mount? 

At the frame header (top of the door frame), where the top rod latch bolt from a vertical rod exit device engages.

Can I use a 310/2 on a single door? 

Only if the single door has a surface vertical rod exit device. Rim exit device doors require the 310/4 instead.

Does the 310/2 work on paired doors?

 Yes. It is specifically designed for paired door applications where both leaves carry vertical rod exit devices requiring simultaneous electric release.

Published by the American Locksets Hardware Team. Authorized Dealer, Est. 2001, Monroe, NY.