EL9957EO.1220.US28 Electric Latch Three Point Locking Device
MPN: EL9957EO.1220.US28
Finishes: US28 Anodized Aluminium
from stock - next working day wherever possible
EL9957EO.1220.US28
Heavy Duty Electric Latch Retraction Three Point Locking Device - (suits doors <1220mm x <2134mm) Anodized Aluminium
The Quiet One®
A fluid dampener decelerates the touch bar on its return stroke and eliminates most noise associated with exit device operations. Furnished on all 99 Series Exit Devices
In accordance with BS EN 1125: 2008 Annexe A (informative) the device should be installed with the touch bar normally at a height between 900mm and 1100mm from the finished floor level when the door is in the secure position. Where it is known that the majority of the occupants of the premises will be young children, it is acceptable to reduce the fixing height accordingly.
Trade Customers - Ask us about trade terms/prices.
- Device Functions - Ships ready for functions; EO, DT & NL - for TP, K & L remove the NL drive screw from the reverse of the device
- Device Lengths - This device suits doors to 1220mm, optional device suits doors to 915mm
- Finishes - US28 (628) Anodized Aluminium. Alternative plated finishes are available to special order (consult Relcross for details)
- Strikes - Ships with standard 299 roller strike, bottom strikes 248L-4 and 304L. Optional strikes are available to suit alternative frame details (consult the Relcross for details). 299 top roller strike with 21mm projection, used with conventional frames where a reveal >32mm exists. 248L-4 Bottom Strike for use with flat top thresholds. Since the strike projects by 10mm care should be taken to ensure installation does not pose a trip hazard. 304L Optional Bottom Strike for use where a mortice installation is desired. Please note - Both the 248L-4 & 304L Bottom Strikes are supplied as standard with all surface mounted vertical rod devices.
- Fasteners - Includes fixings for both metal and timber doors 19mm 425 for bolt through fixings
- Latch Bolt - Easy action friction free deadlocking latches cannot be depressed from the outside - with 19mm throw
Electric Options -
- LX Latchbolt Monitor Switch
- RX Touch Bar Monitor Switch
- RX2 Double Touch Bar Monitor Switch (RX2 feature uses two RX switches)
- ALK Alarm Exit Kit
- EL Electric Latch Retraction
The EL feature allows for the remote unlatching of exit devices. A control station operator can flip a switch to retract the latch bolt and immediately change an exit door to push-pull operation. A powerful, continuous duty solenoid retracts the latch bolt, either for momentary unlatching, or for extended periods of time. The EL feature is an alternative to manual dogging.
If dogging is required, the standard cylinder dogging is not available, but special centre case dogging is available, specify SD-EL.
EL devices are also useful with automatic door operators and may be applied to fire-rated applications when under the control of an automatic fire alarm system.
The EL option does not include the power transfer from door to frame, the power supply, or the control operator. Refer to EPT-2 power transfer and the PS0.ELBB - 24Vdc Power Supply/Fire Relay (PSU) w. Battery Back-Up.
Solenoid Specifications:
- Continuous Duty – 24 VDC
- Current Inrush – 16 Amps
- Current Holding – 0.3 Amps
Solenoid Resistance:
- grn-yel 1.2 – 2 OHMS
- grn-org 106 – 150 OHMS
Special Centre Case Dogging - Use prefix SD-EL, example SD-EL33L
- PN Pneumatic Latch Retraction
- CX Chexit Delayed Exit
Optional Trim (for Outside Access)
add suffix -
DT - Dummy Trim
EO - Exit Only
K - Knob
L - Lever
L-BE - Lever (Blank Escutcheon)
NL - Night Latch
NL-OP - Rim Cylinder (Optional Pull Required)
TP - Thumbpiece
UK Fire Certification in accordance with EN 1634-1:2000 (timber)
WFRC No. C132276 120mins, BS EN 1125: 2008
Important note - the addition of outside access devices restricts the fire certification to 60 minutes.
Von Duprin 98/99 Series Exit Hardware
Best suited to heavy duty situations on perimeter and internal doors where architectural grade safe egress in panic emergency situations is a requirement.
This range of architectural grade escape devices includes the 98 Series with its smooth mechanism case and the established 99 Series with its familiar grooved design. The two styles are mechanically and dimensionally identical and provide a solution specifically for standard stile applications down to 89mm.
