Understanding electric strikes parts and diagrams saves facilities teams from a common and expensive problem: replacing an entire electric strike when only the solenoid has failed. Von Duprin's 6000 Series electric strike line, covering the 5100, 6100, 6200, and 6300 models, is the most widely installed commercial electric strike in North America. These devices are built to be field-serviceable, with the solenoid as the primary replaceable component. The Von Duprin 050240 solenoid kit fits every model in the 6000 Series at 24VDC (with 12VDC in 050237 and 16VDC in 050239), which means one stocked solenoid kit covers the most common failure across the entire product line. But accurate sourcing requires understanding the full component diagram, knowing the difference between fail-safe and fail-secure operation, and confirming the voltage and finish before ordering any finish-specific parts.

How an Electric Strike Works: The Four-Component System

An electric strike replaces a conventional strike plate in the door frame. Instead of a fixed pocket for the latch bolt, the electric strike uses a spring-loaded keeper (also called the lip or gate) that can either stay engaged to keep the door latched or release to allow the door to open without retracting the latch bolt. This is the essential distinction from an electric lock: the electric strike releases from the frame side, so the latch bolt on the door hardware does not need to move.

The four primary components visible in the Von Duprin 6000 Series diagram are:

Strike Body: The main housing that mounts into the door frame cutout. The strike body contains the solenoid, the keeper mechanism, the latch pocket, and the mounting hardware. Strike body dimensions are specific to the strike model and the frame prep. The 6100 and 6200 Series are designed for new construction applications. Retrofit applications may require frame modification when replacing a competitive or older Von Duprin strike.

Solenoid Assembly: The electromechanical component that drives the keeper release. When energized, the solenoid plunger moves, releasing the keeper so the door can swing open. On fail-safe strikes, the solenoid must be energized (power applied) to hold the keeper in the locked position. On fail-secure strikes, the solenoid must be energized to release the keeper.

The Von Duprin solenoid kits by voltage: 050237 (12VDC), 050239 (16VDC), 050240 (24VDC). All three fit every model in the 6000 Series. Note: 16VDC and 28VDC solenoids are sold only as replacement parts for existing strikes in the field. They are not specified for new installations. For AC power operation, the Von Duprin SO12 (12VAC) or SO24 (24VAC) rectifier kit converts AC to the DC the solenoid requires.

Keeper (Strike Lip or Gate): The pivoting component that the latch bolt rides over when the door closes and that either holds or releases the latch when the solenoid is energized or de-energized. The keeper on the 6000 Series is spring-loaded to return to the locked position when the solenoid de-energizes. This spring is a separate serviceable component in the 6000 Series refurbish kit.

Cover Plate and Mounting Hardware: The visible face plate that conceals the strike housing in the frame. Finish must match the installed hardware. Finish-specific items in the 6000 Series are designated with an "X in Finish column" notation in the parts manual, meaning the finish code must be specified when ordering.

Fail-Safe vs Fail-Secure: The Most Operationally Important Distinction in Electric Strike Parts

This distinction affects which solenoid behavior is correct for the installation and has direct code compliance implications for fire door and life safety applications.

Fail-secure operation: The door is normally locked. Power must be applied to unlock (release the keeper). When power is lost (power failure, fire alarm cutoff), the door remains locked. Fail-secure strikes are available for fire-rated openings. The Von Duprin 6100 fail-secure is specified FSE at time of order.

Fail-safe operation: The door is normally unlocked when powered. Power must be removed to lock (engage the keeper). When power is lost, the door unlocks. Fail-safe strikes are commonly used for life safety applications and are non-fire-rated. This is because a fire door must be able to latch under fire conditions, and a fail-safe strike that opens when power is cut would prevent latching during a fire event when building power may be compromised.

When the solenoid fails in a fail-secure installation, the door will typically remain locked regardless of any input signal. When the solenoid fails in a fail-safe installation, the door may fail open or may fail in an intermediate position depending on the spring return and keeper condition.

The entry buzzer (EB) option is available only with fail-secure strikes. It is installed in the frame in parallel with the strike circuit and provides an audible signal to the visitor when the door can be opened.

The Six Series in the Von Duprin Electric Strike Lineup

5100 Series: Standard commercial electric strike for rim exit devices on single doors and pairs. Designed for Von Duprin rim panic hardware applications specifically. Not for use with mortise or cylindrical locks.

6100 Series: Standard commercial electric strike for mortise locks and cylindrical locks. Available in fail-safe and fail-secure. Standard 24VDC. Optional 12VDC and AC operation. Power requirements: 12VDC at 0.38 amp, 24VDC at 0.19 amp. Compatible with a wide range of frame preps.

6200 Series: The high-security electric strike with ANSI/BHMA 156.5 Grade 1 certification and 1500-pound holding force rating. UL 294 Listed, UL 1034 Listed for burglary-resistant electric door strikes. Fire rated UL 10C to 3 hours on single doors, 90 minutes on pair doors with inactive leaf. Compatible with Schlage, Von Duprin, and Falcon cylindrical and mortise locksets as well as many other manufacturers' products. Available for new construction and retrofit applications. The 6200 Series can retrofit a number of competitive and older model Von Duprin electric door strikes.

6300 Series: The widest compatibility electric strike in the Von Duprin lineup, designed for applications where the specific lock manufacturer or model cannot be easily specified at time of order. Covers cylindrical, mortise, and panic hardware applications in a single platform.

J2 Series (6111, 6112, 6113): Specifically engineered for wood frame applications. The 6211WF is recommended on wood frames for new installations. For retrofit applications on wood frames replacing Folger Adam competitive strikes, the J2 Series maintains dimensional compatibility with legacy frame preps.

Monitor Strike Option: What It Adds

The monitor strike option adds a switch inside the strike body that monitors both latch bolt position (whether the latch is in the strike pocket) and lock status (whether the keeper is in the locked position). This allows the access control system to confirm that the door is both closed and latched, rather than just confirming that the strike released. Monitor strike configurations are designated "M" in the model number and require wiring for both the solenoid circuit and the monitor switch circuit.

The monitor option is specified in security-sensitive applications including government access control, healthcare, and financial institutions where door status verification is required by the access control specification.

The 6000 Series Refurbish Kit

Von Duprin produces a 6000 Series refurbish kit that contains the spring-loaded keeper, the pivot pin, and the mounting hardware needed to restore a worn or damaged 6000 Series strike body to full function without replacing the full unit. The refurbish kit is the correct maintenance approach when the keeper is worn, the spring return is weak, or the pivot pin is corroded, but the strike body housing and solenoid are otherwise functional.

The refurbish kit does not include the solenoid. If both the keeper mechanism and the solenoid are failed, the solenoid must be ordered separately alongside the refurbish kit.

Sourcing Electric Strike Parts Accurately

Security Parts organizes the complete electric strikes parts and diagrams catalog for Von Duprin 5100, 6100, 6200, and 6300 Series. Every series page carries component-level organization with interactive diagrams. The Von Duprin Von Duprin brand page covers the full electric strike lineup alongside exit devices and other Von Duprin hardware.

Two ordering notes specific to 6000 Series parts: finish-specific items require the finish code. Items without a finish designation ship in the manufacturer's standard finish, which may not match the installation. Second, 16VDC and 28VDC solenoids are replacement-only parts and cannot be ordered for new applications. Pre-order compatibility support at 845-935-0301 or sales@securityparts.com for frame prep confirmation and lock compatibility questions before an order is placed.

Conclusion

The Von Duprin 6000 Series electric strike is a four-component system: the strike body, the solenoid, the keeper, and the cover plate. The solenoid kit in the correct voltage (050237 for 12VDC, 050239 for 16VDC, 050240 for 24VDC) fits every model in the series and is the most common single repair in the field. Fail-secure strikes are available for fire-rated openings. Fail-safe strikes are non-fire-rated. The 6200 Series carries a 1500-pound holding force and 3-hour UL 10C fire rating on single doors. The refurbish kit restores keeper and spring function without replacing the full unit. Sourcing correct electric strikes parts and diagrams starts with confirming the series, the voltage, the fail mode, and the finish before the order is placed. Security Parts stocks every 6000 Series component with same-day shipping and pre-order support at 845-935-0301.

FAQs

What is the Von Duprin 050240 solenoid kit? 

The 24VDC replacement solenoid for all Von Duprin 6000 Series electric strikes. Available in 12VDC (050237) and 16VDC (050239). Note: 16VDC is a replacement-only voltage not available for new installations.

What is the difference between fail-safe and fail-secure electric strikes? 

Fail-secure stays locked without power, unlocks when power is applied. Fire-rated strikes are fail-secure. Fail-safe stays unlocked without power, locks when power is applied. Fail-safe strikes are non-fire-rated and are used for life safety applications.

What is the holding force rating on the Von Duprin 6200 Series? 

1500 pounds, ANSI/BHMA 156.5 Grade 1. The 6200 Series carries UL 294, UL 1034 (burglary-resistant), and UL 10C (fire) listings with a 3-hour rating on single doors.

What does the 6000 Series refurbish kit include? 

The spring-loaded keeper, pivot pin, and mounting hardware for restoring a worn 6000 Series strike body. The solenoid is not included and must be ordered separately if the solenoid has also failed.

What is a monitor strike? 

An electric strike with an internal switch that monitors both latch bolt position (closed) and lock status (latched). Required in access control specifications where door status verification rather than just release signal confirmation is needed.