Von Duprin 6216 Electric Strike: Spec It Right for Mortise Lock Applications

The Von Duprin 6216 electric strike is a Grade 1, fire-rated electric strike purpose-built for mortise locks with a 1-inch throw deadbolt on single door applications. It works across hollow metal, aluminum, and wood frame openings and ships standard in 24VDC fail secure configuration. Constructed entirely from stainless steel, it has been tested to over 250,000 cycles and holds at 1,500 lbs static strength. It directly retrofits the discontinued Folger Adam 310-3-1. If your project specifies a mortise lock with a deadbolt and requires remote access control, the 6216 is the strike that belongs on that door. Here is everything that affects the specification before the order is placed.

How an Electric Strike Actually Functions on a Mortise Door

Most specifiers understand what the 6216 does in principle. The detail that matters on a mortise application is understanding exactly what it controls and what it does not.

The 6216 replaces the fixed strike plate in the door frame. Instead of a stationary keeper, it uses a movable lip that releases via a solenoid when an access control signal is received, whether from a card reader, keypad, entry button, or access control panel. The door stays latched at all times. The outside lever cannot retract the latchbolt until the solenoid fires and the lip swings open. This means the mortise lock continues to function as a fully mechanical lock for any credential system that does not involve the strike, and access control is layered on top without replacing or modifying the lockset itself.

What makes the 6216 specific to the mortise deadbolt application is the keeper geometry and pocket depth. The strike is designed to accept a 3/4 inch throw latchbolt paired with a 1-inch throw deadbolt. The strike pocket insert accommodates different manufacturers' deadlocking trigger locations, which matters when the mortise lock on the schedule is a Sargent, Corbin Russwin, or Schlage rather than a Von Duprin body. The 9-inch by 1-3/8-inch faceplate fits standard ANSI frame prep, and the strike box is horizontally adjustable to compensate for door or frame misalignment that is common in field conditions.

The two-piece plug connector system is worth noting for installers. It allows the strike to be disconnected and reconnected during servicing without disturbing the frame wiring, which reduces the time and disruption of any maintenance call over the life of the hardware.

Voltage, Fail Mode, and Options: The Three Decisions Before You Order

Getting the 6216 specified correctly comes down to three decisions. Each one affects how the product is ordered and how it integrates with the access control system on site.

Voltage. The 6216 ships standard at 24VDC, drawing 0.33 amps continuous duty at 83 ohms. The 12VDC version draws 0.60 amps continuous at 21 ohms. The choice is determined by the power supply on the access control panel, not by the lock or the door. Confirm the panel output voltage before ordering. AC operation is available through the SO12 and SO24 rectifier kits, which install inline to the solenoid and convert AC to DC for panels that output AC rather than direct current.

Fail mode. Fail secure (FSE) is the factory standard. If fail secure, the strike lip stays locked when power is removed, meaning a power failure leaves the door secured. This is the correct configuration for offices, server rooms, interior security doors, and any opening where the code does not require the door to release on power loss. The fail safe (FS) configuration reverses this: power is applied to lock the strike, and the door releases when power is lost. Fail safe is used where fire code requires the door to unlock on alarm activation, typically stairwell reentry doors under IBC provisions. Building codes prohibit fail safe strikes on labeled fire door assemblies - and the 6216 carries a UL 10C fire rating, so this is not a theoretical concern. Both modes are field convertible with the parts provided. For a complete breakdown of when each applies across different door types, the fail secure vs fail safe guide on this site covers every scenario in detail.

Options. Four factory options change how the 6216 integrates with monitoring systems:

• DS (Dual Switch): Adds two SPDT contacts monitoring latchbolt insertion and strike lip status simultaneously. Specified whenever the access control panel needs to confirm the door is both closed and latched.

• DS-LC (Low Current Dual Switch): Same monitoring as DS but rated for 24VDC at 0.050 amp or less, for computer monitoring systems with low current switch inputs.

• EB (Entry Buzzer): Sounds when the fail secure strike is unlocked. Wired in parallel with the circuit and installed in the frame. Used where a visual indicator alone is not sufficient at the door.

• Allegion Connect: Factory-installed Molex connector compatible with Allegion Connect hinge wiring systems, simplifying wire routing across the door gap.

Why the Specification Decision Starts and Ends With the Supplier

There is a straightforward reason why sourcing Von Duprin hardware through an authorized Allegion dealer matters more on a product like the 6216 than it does on a standard mechanical lockset. The 6216 is a safety-critical component on an access-controlled opening. It carries fire-rated listings. It integrates with an access control system. And it has configuration options that determine how the door behaves during a power failure or fire alarm condition.

When any one of those variables is specified incorrectly, the problem does not surface at the time of purchase. It surfaces during a fire inspection, a building code review, or a security audit months later. At that point, the origin of the hardware matters: whether it came through official Allegion distribution with a valid warranty and current factory documentation, or through a grey-market channel with inventory of uncertain provenance and no warranty path.

American Locksets has been an authorized Allegion dealer since 2001. The 6216 we ship is current production, fully warranted, and comes with the documentation that AHJs and facilities managers require on controlled openings. Same-day shipping from multiple US warehouses means the hardware schedule is not held up on the supply side. And because the complete Von Duprin lineup is available through our electric strikes section, the full 6200 Series - including the 6211 for standard latchbolt applications and the 6216 for mortise deadbolt openings - can be sourced from a single order without splitting across multiple suppliers.

For projects where the 6216 ships alongside electronic hardware including power supplies, credential readers, and request-to-exit devices, that single-source advantage eliminates the coordination overhead of managing multiple delivery windows across different suppliers. When the project also includes Von Duprin exit devices on egress doors, our exit hardware section carries the complete panic device lineup that the 6216 frequently accompanies on the same hardware schedule. For the mortise and cylindrical locksets the 6216 serves, the full selection is available through commercial locks.

Call 877-471-4870 before the order is placed. We confirm the voltage, fail mode, and option configuration against the access control system before it ships, not after it arrives on site.

Conclusion

The Von Duprin 6216 is built for one specific application: access control on a mortise lock opening with a 1-inch throw deadbolt. Its fire-rated listings, Grade 1 construction, field-convertible fail modes, and 250,000-cycle durability make it the correct specification for that door type across new construction and retrofit projects. Get the voltage right by confirming the panel output. Get the fail mode right by checking the applicable code for the door type. Add the DS switch if the panel needs to monitor both latchbolt and strike status. American Locksets carries the complete Von Duprin 6216 line from authorized Allegion stock with same-day shipping. Browse the full product listing at americanlocksets.com or call 877-471-4870.

Frequently Asked Questions

What is the Von Duprin 6216 electric strike designed for? 

Mortise locks with a 1-inch throw deadbolt on single door applications, across hollow metal, aluminum, and wood frame types.

What voltage does the Von Duprin 6216 run on?

 24VDC at 0.33 amps is standard. 12VDC at 0.60 amps and AC operation with rectifier kits are available options.

Is the 6216 fail secure or fail safe? 

Fail secure is the factory standard. Fail safe is available but is prohibited on labeled fire door assemblies per building code.

What does the DS switch option do on the 6216?

 It adds dual monitoring contacts: one for latchbolt insertion into the strike pocket, one for strike lip position - open or closed.

What discontinued model does the 6216 replace? 

The Folger Adam 310-3-1. The 6216 is the direct replacement for that application.

Is the Von Duprin 6216 fire rated? 

Yes. It is UL 1034 burglary-resistant listed and UL 10C fire-rated. It also meets ANSI/BHMA Grade 1.

Where can I buy the Von Duprin 6216?

 American Locksets carries the full 6216 line at americanlocksets.com/von-duprin-6216-electric-strike-for-mortise-locks. Call 877-471-4870 to confirm your configuration.