Exit Devices For Access Control Tutorial

By: Brian Rhodes, Published on Aug 28, 2018

Exit Devices, also called 'Panic Bars' or 'Crash Bars' are required by safety codes the world over, and become integral parts of electronic access control systems.

However, they are often poorly understood, especially how they should be used in electronic access control systems.

Inside, we explain:

  • Where Exit Devices Must Be Used Per Code
  • What The Major Components Are
  • Why Mullions Or Vertical Rods Are Needed
  • Why Electronic Latch Retraction Is Useful For Access Control
  • How Power Is Routed To Exit Devices

Mandatory Use

The application of exit devices is determined during building design by codes. Depending on occupancy classification, openings are required to meet specific criteria related to their opening during a 'panic' or emergency situation. Many code passages through IBC and NFPA relate to this subject, but the sections below provide the basic performance requirements of this hardware:

NFPA 101 : 7.2.1.5.9 - 7.2.1.5.11, 2015:

Latches or other fastening device on a door shall be provided with a releasing device having an obvious method of operation under all lighting conditions.  The releasing mechanism (except existing installations) shall be located between 34" and 48" above the finished floor. Doors shall be openable with not more than 1 releasing operation:

  • each leaf of a pair in a means of egress shall have its own releasing device, and each device has to operate independently (can not require 1 device to be released before the other), except
  • no additional locking device (padlock, hasp, chain, deadbolt, etc.) shall be installed on a door which requires panic hardware

Exit devices are not specifically identified in codes as the only solution for these openings, however, the design of modern panic hardware typically represents the least expensive and most reliable products marketed to be code compliant.

**** *******, **** ****** 'Panic ****' ** '***** Bars' *** ******** ** safety ***** *** ***** over, *** ****** ******** parts ** ********** ****** control *******.

*******, **** *** ***** poorly **********, ********** *** they ****** ** **** in ********** ****** ******* systems.

******, ** *******:

  • ***** **** ******* **** Be **** *** ****
  • **** *** ***** ********** Are
  • *** ******** ** ******** Rods *** ******
  • *** ********** ***** ********** Is ****** *** ****** Control
  • *** ***** ** ****** To **** *******

Mandatory ***

*** *********** ** **** devices ** ********** ****** building ****** ** *****. Depending *********** **************, ******** *** ******** to **** ******** ******** related ** ***** ******* during * '*****' ** emergency *********. **** **** passages ******* *** *** NFPA ****** ** **** subject, *** *** ******** below ******* *** ***** performance ************ ** **** hardware:

**** *** : *.*.*.*.* - *.*.*.*.**, ****:

******* ** ***** ********* device ** * **** shall ** ************ * ********* ****** ****** an ******* ****** ** operation ***** *** ******** **********.  *** ********* ********* (except ******** *************) ***** be ******* ******* **" and **" ***** *** finished *****. ***** ***** be ************ *** **** **** 1 ********* *********:

  • **** **** ** * pair ** * ***** of ****** ***** **** its *** ********* ******, ******* ****** *** ** operate ************* (*** *** ******* 1 ****** ** ** released ****** *** *****), ******
  • ** ********** ******* ****** (padlock, ****, *****, ********, ***.) shall ** ********* ** a **** ***** ******** ***** hardware

**** ******* *** *** specifically ********** ** ***** ** the **** ******** *** these ********, *******, *** design ** ****** ***** hardware ********* ********** *** least ********* *** **** reliable ******** ******** ** be **** *********.

[***************]

'****** *******' *** ** alternative *** *** *** be ********** **** *** door **** ** ** code ********* ********* ** local *************** (**: ****** in '*** ******** **********')

** *******, **** ******* are ******** ** *** facility *****:

  • ******/***** ****** **********: (*****, public *********, ********, *********)
  • ***** ******** ** ****** is ********* (**********/****** **********)
  • ***** **** ******** ********** plans (**** **********/********** ***************)
  • ***** ***** ********** ** materials *** ****** (**********, storage **********)

**** ********* ****** *** majority ** ***-*********** **********.

Major **** ****** **********

***** *****, *****, *** potentially ************ *******, *** operation ** ** **** device ** ******: **** the ***, ******* *** latch, *** ***** **** a ****. *** ***** design ** **** ******* are ***** *****:

** ******** ** *** above ********, *** ******* to '*** ****' * device, ** **** *** bar/latch **** ** ********* position, ** * ****** feature. *********, **** ******** uses * ****** *** key ** **** * device ****.

**** ******* *** ******* devices ******* ** *** '*** **** **** * releasing *********' **** *********** **** often ***** *** ****** latches **** ** ********* in ******** ********* ** multiple ********** **** *** motion. **** ******* ***** include ********** ******** *** are ********* ** *********** and *********** **** *** door *****.  

***** *** '******* ****' configuration ** ** **** device ** ******* ********** of ****, *** '*******' or '*********' **** ** a ****** ** ******* to **** *************. ** many *****, * ****** door ****** ** ****, but '******* *** ******' that ****** ** ******* lock ** ****** *** door **** *** ********* side ** ****.

Latch ********

*** ******** ** *** latch ** * ******** feature, ********** **** **** devices **** **** **** EAC *******.

*** ***** ** ********* because ** ** *** physical ********* **** ******* the ****. **** **** devices, ***** *** ********* three ********* ***** *********, with * ****** ****** controlling ** ** ***** latches **************.

Mullions ** ******** ****

** ***** ***********, ****** doors *** ****** ******* they ****** **** ****** to ***** ** ***** than * ****** ****. As ****, **** ******* are ***** ***** ** double *****. ** **** cases, *** ******** ** a ****** ****, ****** a *******, ******* *** latch ********. **** *** mullion ** *******, ******* are ********* ********* ** the '****** ****'. *******, when *** ******* ** missing, *** **** **** be ******* **** *** top ** ****** ** the **** *******.

******* **** ** ******* use ****:

******* **** ******* ***** without ****:

******* *** ***** ******** changes, **** ******* *** way *** **** ********** with ** ****** ******. For *******, ** *** affect *** ********* ** an ******** ****** ** be * ***-***** ******* double ******** *** ******. Or *** ******** ** the ******** **** *** complicate *** ******** ******** of * *******. ** either ****, ********* ** electrified ******* ******** ** affected ** *** **** of **** ****** **** on *** ****. 

Electronic ***** **********

******* ****** ** ** apply '********** ***** **********' to *** ******. **** powered ******* **** ** the ***** ** ** the *** *** ***** pushed **** * ********** is ****. **** ****** an **** ****** ** remain '********', *** ****** from *** ******* ********** of **** ** ********* on *** ****** ** the ****:

**** **** *** ****** is *** ********* ********* with **** *******, ******** kits *** ********* **** many ************* ** ******* units. 

**** **** **** ***, the **** ****** ********** with *** ********** **** a ****** - ********* the **** ** ********* until * ********** **** causes *** ****** ** apply ***** ** *** retraction *********. ********** ** the **** ** ******* used - *********/******* ****, or ****** *******, ********** on ******** ***** ********** are *********.

Getting ***** ** *******

**** **** ******* **** electricity, ******** **** *** be * *********. ****** other ******** ***** **** are ******* ** ******* run ******* *** *****, exit ******* **** **, and **** ***** ****, the **** ****. 

*******, ******* *** ***** retraction *** ***** *********** features ** *** ** the ****** ** *** of *** ****: **** Loops ** ******** ******:

******** (** *******) ****** are *** ********* ** mechanically ********* **** ******** hinges, **** ****** *** constructed ** **** ******* power **** *** ***** to *** ***** **** internal ******** ********. ******* the **** (*****) ****** on ******, *** *********** and ****** ** ***** conductors *** ********. *************, power ****** ***** **** and ***** **** **** years, *** *** ********* may **** ** ** periodically ********.

******* ********** ** ******** hinges *** **** **** be *** ****** '****** core' *****. ***** ******* power ********** ** *** door ** ***** *** more ****** **** ********* risk, ** ******** '***** core' ***** ****** ********** core ******* ******** [**** no ****** *********] ** performed.

** **** *********, * 'door ****' ** ****, which ** *********** ** externally *** *****, ******* in **** **** ** flexible ******* *******. *** loop ** *** ** the ******* (******) ** the ****, *** ********** vandalism ** *** ********* an *****, *** ******** tampering *** ****** *** be.

***** ****** ******** ********* power ** **** ******* are:

  • ******:******* *** ********* **** emit ** ***** **** the *** ** ****** and *** **** *****. This ** * ****** feature *** '********* *****' that *** *** '******' passages. **** ******* ***** the ****, *** ***** attracts *********.
  • ******* ******:** **** *****, *** door *** ** **** locked *** * ***** period ** **** ****** opening. ***** ***** ******* legislate *** ********** *** of ******* ******, *** in *** *****, * siren **** ***** ****** a ******* ******. ** we ******* ** *** '******* ****** ********' ******, **** ** a ****** ******* ** keep ****** ******* *** a ***** ****** ** time ***** ***** ******** emergency *******.

Relative ****

*** ***** ***** *** an **** ****** ****** wildly, **** ***** $*** economy ***** ******* ** $4,000 ***** ****, *************** styled *****. ** *******, the ******** ********** **** cost ****** $***, *** other ******* ******** **** strikes ** ******** **** inline **** ******* *******, from $*** ** $*** depending ** ***** *** holding *****.

Other *******

**** ** *** **** when ********** *** ** exit ****** *****, *** actual devices **** ******* **** specified, *********, *** ** use. *******, ***** *********** factor **** ********** *** exit ******* ** *****, namely ** ****** *** door **** (*****, ****, or *****). ** **** address ***** ****** ************ in ******** *****.

Comments (21)

**** *******. * ***** like ** *** *** caveat. **** ****** *** changes ** * ****, it ** ********* ** know *** **** ******. Any ******** *** *** to *** **** ***** to ***** *** **** fire ****** ** *** opening.

"******* *** ********** ** electric ************* **** ** *** inside '****** ****' *****. While ******* ***** ********** to *** **** ** safer *** **** ****** from ********* ****, ** excludes '***** ****' *****, like **** *****, ***** are."

 

******** ** ** **** difficult, ** ** ******** to *** ** ******** hinge ** * ***** core ****. *** ******* way ** ** **** it ******* ** *** factory, *** ** *** also ** **** ** the ***** **** *** use ** * **** Core ***** ******. 

****'* * **** *****, and *'** **** *** post ** ******* ********* door ******* ******, ****:

 

*** ***** *'** ******* people *****-***** ***** **** doors *** **** ********** Wiegand *****, *** *** most ********* ** ******* of ****** *** *******; that ******** ******** ***** in *** **** ** brand *** $**,***-$**,*** **** for ****** *** *******.

*****. ** ** *** a *** *** *** the '*** ***' **, and *** ******* ******** can ***$*** - $*,*******.

* ***** * ****** Electric **** (**) **** Electric ***** ********** (***)

***** ********** ** ******* could **** **** ****** on *** **** & Cons ** ***** * options.

******** ****** ***** **** manufacturers ***** * ***** ELR ******, ******** ***** it ****, *****'* *** a ****** ** *** QELR ** ******, *** I ******'* *** *** loud ***** ** *********** ELR *** ** ****. 

******!

** *** (****** ***********) the *********** **** ********.  The ********** ** ** how **** ********.  ********** trim ********* * ******** which ****** *** *** outside ***** ** "*******" but *** **** ******* latched ***** *** **** turns *** ***** *** walks ******* *** ****.  The *** **** * motor ** ******** **** the **** ** ***** cables *** **** *** user ****** ***** *** door ****.  *** **** to ** ******* ******.  The ********** **** (** some ******** ******) **** not ***** *** ***-********, so ** **** ** a ***** **** ***** a **** *** ** required, *** ***** **** to *** ********.  ***** is * ****** ***** in *** *** ***** the ********** **** ** instant.

***** *** ****. **** summary ** ********** ******* that * ****** ***** with ********** *********** ****. :) 

***** *** ******** ********, and ** **** ***** near-requirements, *** ***** *********** trim. **** ****, **'* definitely *** ****** *** right ******.

******** **** ** ***** and ************ ******** (********* on ***) *** ********* doors ***** * ***** device ** ********. ***** they're **********, *** ***** are ******** ** ******** a "******** *****" ** that **** ***'* ** blown ** ****** **** by * ****, *** they **** ** ******** to ***** **** ******* in *** ***. ****'** also **** *****, ** they're ***** ** ***** where *** **** ***** of ** **/*** (** even * ***/***) ******'* work.

*** ******* **** **** is **** ******* ** my **** ***** ***** their **** *******, **** are ****** *** ** robust ** **/*** ** QEL/MLR ********. * ***'* say **'* ******, *** I've ******** **** **** ET's **** **** * have ******** **** ** panic ******* **** ****.

************, ***** **** ** probably * ***** ********, electrified **** **** **** not **** **** ****** with * **** ********, since *** **** *****'* actually ******* *** ****. The **** ***** **** makes ** *** ***** fit *** ********* ***** is **** ******** ** from ******* **** *********. I ***'* **** *** how **** ***** *'** seen ****** ******* *********** trim ** * **** with ** ******** ******* it's *** *****-********* ******, only ** ******* ***** it's ********* **** ** won't ***** ****...

*********** ***** ********** ** pretty **** ***** ****** out.  **** ************* ******* their ******* ***** ****** to ** ******* ***** the **** ****** **-** feet, ******** * ****** circuit *** **** ******** a ******* ***** ***** from *** ** ** the ***** ***.  ***** are ******* ********* *** that ***** ** ********** no ****** ** *** EL ********.

****'* ***********.  ***** ******* are ****** **'* *****?

*** ******** ********, *** QEL ** ** ****** as *********.

******** ***** ** ******* are ***** ****** ***. Motorized ** ******* *** taking ***** *****. **** still *** "******** ***** retraction"

* ***** ******** **** there ** "********** ** reason ** *** ** function."

****** ***, *** **** rating ** *** ***/*** devices (** ***** *** that * ** ***** of) ** ***** **** their **/*** ************, *** in **** ***** ************* so. *** ********* ****-******* or ****-***** ***** (*.*. schools, *********, ** ***** similar *********), **** *** make * *********** ********** in *********** *** ********, especially ******* *** ***-******** are ************* *****-******* *** can't ******** ******** **** alignments ** ******, ***. Not * *** **** for *** ***** *** years ** ** *******, but **** * **** has **** ******* *** baking ** *** *** for * ***** *** being **** *** ***** a ***, ** ******* an *****.

*****'* ** ******** **** QEL/MLR ** ******** **** and **** ******* ** the ***** **** **/*** is ****** ****, *** that *****'* **** ****'** always *** ***** ***. If **'* *** ************ and ***** ******* *** required, * **** ****** lean ******* ** **/*** device **** * ***/*** device***** ***** **** *** EL/ELR **** *** ** an *****. ****'** **** more ****** ******* *** will **** *** ***** issues ** *** **** run.

*** *** ***** *** require *** ** ***** up ** *** **** and ** ***** *** longer *********. ****** *** that *** ***** **** solenoid ****** ** **** of ****** ******* ** 24VDC (*** .* ******) in ***** ** ***** the ********** *******. *** new *** ** * motor-driven *********** *** *****'* use **** ********. ** uses ** ******** ********* power ****** (*****), *** thus ******* ***** ****. There *** *****-***** ******** kits ********* **** *** that **** **** * 1 *** ***** ****** and **** ** ***** wire. **'** *** ********** success **** **** (**** 100 ************* ** *** field *** **** *** callback **** *** *** fault ** *** *********). Personally, * ***'* *** latch ********** ***** **** - * *** ** being ********** **** ***********.

***** ** ********* **** I *** *** *** it ****. *** ** I **** ** *** an ********** **** ** an ********* **** , if *** **** ***** that *** *** ************ you ***** *** **** people ****** **** ******** and **** ***** ** able ** ****** ****** !!? *** ** ** an ********* ****, ** it *******'* ** **** from ******* (*** * main ****). * ***** I ****** *** * sensor/monitor ** ******* **** door ** *** ****** or ****. **** ** what * ***** * need ** *******, ** I ******* ? ******* i'm ********.

*** ** * **** to *** ** ********** lock ** ** ********* door , ** *** code ***** **** *** any ************ *** ***** not **** ****** ****** your ******** *** **** shall ** **** ** egress ****** !!?

******* *** *** **** people ***, ** **** them ******* *** **** permit **** ****** ******* the **** ** **** are **********.

*** ***** **** ***** extender? * **** ***** seen ******** **** **.

****'* * ***** ****:

* **** *** **** one ** *****, *****. It ***** ***** ** the *****. ****, ** you're *** *******, ** will **** * ***** of ***** ** *** try ** **** ******* the ****, ** ** sticks *** ***** * inches **** *** *******.

**** ****** **** *** idea *** ** ****** this *** ****** *******? The ***** *** ***** work **** * *** 9400 ** ****, ** this **** ******, ** on * ****** **** jamb. *'* *** **** what ** ** ****, other **** ********* *** whole ***** *** ******** over.

********** *** ************-******** ***** trim ** *** **** series **** ** **** in ***** ** ******** strikes. ** ****** - **********

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