Adams Rite 74R1 Ultraline Electric Strike For Rim Devices - For Wood, H.M. & Aluminum Door Jamb

The Adams Rite 74R1 is an electric strike specifically engineered for rim exit devices using a 3/4-inch Pullman type latchbolt - the standard latch configuration on most commercial rim panic devices. When the strike receives a signal from a card reader, keypad, or access control system, it releases the latchbolt holder electrically, allowing the door to open by pushing on the frame side without the person inside operating the exit device at all. This is the mechanism behind credential-controlled single-door access on lobbies, vestibules, controlled building entries, and restricted perimeter doors where a rim exit device is the required egress hardware.

Which Exit Devices This Strike Is Compatible With

The 74R1 accepts the 3/4-inch Pullman latch from rim exit devices that do not use auxiliary deadlocking bolts. Von Duprin 98 and 99 rim devices, Sargent 8800 Series rim devices, Corbin Russwin ED5200 rim devices, and similar rim configurations with a 3/4-inch Pullman bolt without a secondary auxiliary bolt are all compatible. Exit devices with auxiliary deadlocking bolts - where a second bolt projects alongside the main latch - are not compatible with this strike. The strike opening accepts the Pullman bolt only. If your exit device uses auxiliary bolts, confirm compatibility before ordering.

The companion product 74R2 serves narrow stile rim devices with a 1/2-inch Pullman bolt - the configuration found on narrow stile aluminum storefront exit devices. If the door is aluminum storefront with a narrow stile crossbar, confirm the Pullman bolt size before selecting between 74R1 and 74R2.

Preload Tolerance: Why It Matters

Door preload is the pressure pushing a door against the frame caused by HVAC pressure differentials, warped door frames, door misalignment, or wind load. Most standard electric strikes cannot release under door preload - the door pressure holds the latch against the jaw and the solenoid cannot overcome it. The 74R1 Ultraline releases electrically under up to 35 pounds of door preload. This is not a minor specification. Buildings with HVAC systems, exterior doors exposed to wind, or aging door frames that have shifted over time consistently defeat lower-rated strikes. The 74R1 handles those conditions without a separate strike release device.

Holding Force, Security, and Certifications

In fail-secure mode, the stainless steel split-jaw keeper provides over 1,500 pounds of static holding force. The case is zinc aluminum alloy. The strike carries UL 1034 listing for burglary resistance and suitability for outdoor use, UL 294, ULC-S319, and ANSI/BHMA A156.31 Grade 1. Grade 1 is the correct specification for commercial and institutional applications. The non-handed design installs on either a left-hand or right-hand door without modification.

Fail-State and Voltage - Field Selectable at Installation

Fail-safe and fail-secure modes are field selectable during installation - no factory modification required and no separate part number for each fail state. The solenoid is single-unit, operating on 12, 16, or 24 VDC. Note: 16 VDC requires the VA7400-16VDC adapter, sold separately. Current draw is 0.44A at 12 VDC, 0.46A at 16 VDC, and 0.23A at 24 VDC - 24 VDC is the lower-current, more efficient choice for facilities using modern access control power supplies. The strike connects via a quick connect plug-in type connector, simplifying field installation and service replacement.

Finish Selection: Matching the 74R1 to Your Hardware

Three finish options are available. 

The 74R1-130 matches clear anodized aluminum (628 equivalent) - the standard for aluminum storefront frames. 

The 74R1-121 matches dark bronze anodized (313 equivalent) for dark bronze aluminum systems. 

The 74R1-119 matches black anodized (335 equivalent) for black aluminum frame installations. Select the finish that matches the existing frame and exit device hardware on the door.