The Von Duprin 010057 is the OEM 12 VAC to 12 VDC Rectifier Kit for Von Duprin electric strikes, documented in the Von Duprin 6100 Series Data Sheet (doc 105282) and the Von Duprin Electrical Security Products and Accessories Catalog (doc 109981). The catalog ordering designation is SO-12. Per the official Von Duprin documentation: "For AC operation, Von Duprin SO12 (12VAC) or SO24 (24VAC) kit is recommended." The 010057 is listed as an available option across the full Von Duprin 6100 Series, covering the 6111, 6112, 6113, and 6121 strikes. No finish options. Available (3-4 weeks).

What the Von Duprin 010057 Rectifier Kit Does

The Von Duprin 6100 Series electric strikes are designed to operate on DC (direct current) voltage. The standard factory configuration ships as 24VDC fail secure. The 12VDC configuration is an available option. Both require a DC power source to operate correctly.

In many installations, the available power source at the door is AC (alternating current) rather than DC. This occurs in older buildings where fire alarm panels, intercom release systems, or access control systems were designed to output 12 VAC instead of 12 VDC. It also occurs in retrofit applications where an existing 12 VAC transformer powers the door release circuit and replacing the power supply is not practical. The 010057 rectifier kit solves this by converting 12 VAC to 12 VDC at the strike connection point, making the DC-rated 6100 Series strike fully compatible with a 12 VAC power source without requiring a new power supply.

From the 6100 Series Data Sheet ordering instructions: "If AC power is required, specify rectifier kit." The 010057 is ordered separately and installed at the strike as an add-on option, not factory-configured. It connects between the incoming 12 VAC feed and the strike solenoid wiring, converting the power before it reaches the strike solenoid.

Why DC Is the Correct Operating Voltage for Von Duprin Electric Strikes

Electric strike solenoids perform better and more reliably on DC power than on AC power for three reasons. First, a DC solenoid draws consistent current throughout energization. An AC solenoid experiences alternating current peaks that generate more heat in the coil winding, shortening solenoid service life in sustained-energization applications such as fail safe configurations where the strike remains powered for extended periods.

Second, AC solenoids produce audible 60Hz vibration - the familiar electrical hum - that is noticeable in quiet environments such as offices, healthcare facilities, and schools. DC solenoids are silent during operation. Third, DC solenoids have more predictable response times on activation and release, which is important in access control applications where door release timing is coordinated with reader credential processing.

The 010057 rectifier kit eliminates all three AC disadvantages by converting the power before it reaches the solenoid, allowing the DC solenoid to operate within its designed parameters regardless of the upstream power source.

Von Duprin SO-12 and SO-24: The Rectifier Kit Family

Von Duprin offers two rectifier kits within the 6100 Series option catalog, one for each of the two available strike voltages:

010057 (SO-12): Converts 12 VAC to 12 VDC. For use when the available power source is 12 VAC and the strike is configured for 12VDC operation.

SO-24: Converts 24 VAC to 24 VDC. For use when the available power source is 24 VAC and the strike is configured for 24VDC operation, which is the more common scenario since 24VDC is the 6100 Series standard configuration.

Selecting the correct kit requires confirming both the voltage of the available power source and the voltage configuration of the installed strike. Using a 12 VAC rectifier kit with a 24VDC-configured strike will result in incorrect voltage at the solenoid and unreliable or failed operation.

Electric Strike Parts: 010057 in the 6100 Series Option List

The full 6100 Series option list per the official Von Duprin Electrical Security Products and Accessories Catalog includes: rectifier kit for VAC to VDC conversion (the 010057), dual monitor switches, entry buzzer, and Allegion Connect wire extension. All four are add-on accessories ordered separately and specified at time of order. The 6100 Series comes standard with two-piece plug connectors for ease of installation and removal during strike servicing, which also simplifies adding options like the 010057 without rewiring the existing strike connections.

SecurityParts stocks OEM Von Duprin 6100 Series electric strike options and accessories. Free shipping on orders over $300.