Magnetic Lock Controlled Entrance Code Criteria

By Robb Rittner

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International Building Code (IBC), 2009
Chapter 10: Means of Egress
Section 1008: Doors, Gates and Turnstiles

1008.1.4.4 Access-controlled egress doors.
The entrance doors in a means of egress in buildings with an occupancy in Group A, B, E, I-2, M, R-1 or R-2 and entrance doors to tenant spaces in occupancies in Groups A, B, E, I-2, M, R-1 and R-2 are permitted to be equipped with an approved entrance and egress access control system which shall be installed in accordance with all of the following criteria:

  1. A sensor shall be provided on the egress side arranged to detect an occupant approaching the doors. The doors shall be arranged to unlock by a signal from or loss of power to the sensor.
  2. Loss of power to that part of the access control system which locks the doors shall automatically unlock the doors.
  3. The doors shall be arranged to unlock from a manual unlocking device located 40 inches to 48 inches (1016 mm to 1219 mm) vertically above the floor and within 5 feet (1524 mm) of the secured doors. Ready access shall be provided to the manual unlocking device and the device shall be clearly identified by a sign that reads “PUSH TO EXIT.” When operated, the manual unlocking device shall result in direct interruption of power to the lock—independent of the access control sys- tem electronics—and the doors shall remain unlocked for a minimum of 30 seconds.
  4. Activation of the building fire alarm system, if provided, shall automatically unlock the doors, and the doors shall remain unlocked until the fire alarm system has been reset.
  5. Activation of the building automatic sprinkler or fire detection system, if provided, shall automatically unlock the doors. The doors shall remain unlocked until the fire alarm system has been reset.
  6. Entrance doors in buildings with an occupancy in Group A, B, E or M shall not be secured from the egress side during periods that the building is open to the general public.

350 EMLock® Retrofits Discontinued Locknetics 350+ Maglock

350 EMLock® Retrofits Discontinued Locknetics 350+ Maglock

SDC, a leading manufacturer of premium grade access control hardware, is pleased to introduce the new failsafe 350 Narrow Line EmLock. An electromagnetic lock with 1200lb holding force, and ultra unobtrusive design that blends into high profile architecturally superior narrow frame openings.  Plus, the 350 EmLock is a direct equivalent and retrofits the discontinued Locknetics magforce 350+ with identical mounting template, physical dimensions, appearance and features. Plus, no charge for standard features such as Magnetic Bond and Door Status, Interlocking Quick Mount Bracket for hands free installation using self drilling/tapping mounting screws. The SDC 350 is only 12-1/2” long, 1-11/16 deep, with very short 2-1/8 projection from the frame into the opening, compared to traditional magnetic locks that project 3” to 3-1/2” into the opening. The standard armature housing eliminates noise, sagging and adds to the overall superior appearance. Auto-sensing 12/24VDC input is standard.