ES15 Strike, 1250kg, ANSI Footprint, Non-Monitored

The patented RIM-Mounted, FES15 Series Electric Door Strikes are designed for pedestrian gate application or any other light commercial/ residential application where a RIM Mounted strike is required. They accept voltages of either 12 or 24VDC, are fire tested up to a 2 hour fire resistance rating to both Australian and British Fire Test Standards.

The strike are easily site-interchangeable Power To Lock (PTL) or Power To Release (PTR) by simply changing over the Barbell mechanism. The device comes with a 5 year warranty and has a holding strength of up to 1250kg. The FES15M version comes with Door Status Sensor (door latch monitoring) and the non-monitored FES15 version is weather resistant IP56 rated.

Features:

• Barbell mechanism for easy change of locking function
• Low power consumption
• Weather resistant IP56 (FES15 non monitored only)
• Superior holding strength of up to 1250kg
• 5 year warranty
• 12 or 24VDC operation
• Surface mount for RIM-Locks

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Choosing an electronic door locks

The electronic door strike is installed within the door and activated by an intercom or access control system.

All strikes work on the principle of electronically controlling the temporary free movement of the jaw (striker) allowing for door opening without manual retraction of the latchbolt.

Ideally, the latch should have a dead-locking facility whereby the latch bolt cannot be forced back into its case because of the action of the snib resting against the electric strike forend. This facility offers extra protection when a strike is fitted to an outward opening door.

WHICH DOOR STRIKE SHOULD BE USED?

This depends on a number of factors. What level of security is needed? What type of door material is the strike to be fitted to? Single or double door? Is monitoring of the strike required? What power supply unit is to be used in the system? Is the system AC or DC? What else is running off the PSU?

LEVEL OF SECURITY

There are three basic categories.

1. Light: normally with no quoted holding force or life. Usually AC and used for low cost door entry systems.
2. Medium: Holding force of at least 1,000lb with guarantees of two or three years.
3. High: Holding force of at least 3,000lb with guarantees of up to five years. Some are available with UL approval.

TYPE OF DOOR

Door material - internal or external, single or double doors.

Electric strikes can only be used on single action inward OR outward opening doors. For double action swing-through doors other locking solutions like solenoid bolts, magnetic shear locks or double action electric latches are available. Nowadays there are strikes suitable for nearly all door styles and materials, the most popular being timber and aluminum followed by steel, and occasionally, uPVC.

Potentially, uPVC causes the most problems because of the narrow and often complicated section containing steel reinforcing. Another problem is the fitting of a suitable lock case into the narrow uPVC framing to operate with the strike. If the door contains a multi-point lock it is likely to be impossible to fit an electric strike.

If the door contains, or can be fitted with a latch, the best option could be to fit a narrow style sash lock and operate with a sash lock strike either in a UK or DIN faceplate format.

Whilst a sash lock can improve the level of security in any door when the deadlock is thrown, care should be taken to ensure that the bolt is removed prior to attempting the operation of the strike.

MONITORING

Depending on model, most manufacturers produce strikes with or without a monitoring facility. This function relays back the state of the strike via single point monitoring of the latch in the jaw of the strike or by dual monitoring of both the latch and solenoid operation. For door state monitoring, consideration should be given to using a separate reed switch on the door/frame.

POWER TO LOCK/POWER TO OPEN

Fail Open (Power to Lock) or Fail Secure (Power to Open) are features of the electric strike that will be site dependent. For example, if the strikes are tied into the fire alarm system it is likely that they will be required to Fail Open (Fail Unlocked) once power to the strike is removed. Under other circumstances the strike may be required to fail in the locked position requiring the use of a Fail Secure (Power to Open) strike.

AC OR DC?

Where security is involved you cannot always expect a low cost AC strike to offer the same level of security that can be achieved by using a more expensive medium/high duty strike. Pick a product that is fit for the purpose. Short-term savings can work out very expensive. Most of the low cost door entry systems operate on AC rather than DC. Alternating Current produces the familiar buzzing sound which is not heard with DC systems, and AC strikes are only available as Fail Secure (Power to Open). More sophisticated systems operate on DC allowing for continuous silent Fail Open (Power to Lock) or Fail Secure (Power to Open) operation.

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