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SECURITRON PB, PBA EXIT BUTTON
INSTALLATION AND OPERATING INSTRUCTIONS
1. DESCRIPTION
The model PB is a spring loaded momentary, 1 1/2" Diameter, exit button, with bi-color
illumination, mounted on a stainless steel single gang outlet box cover. The model PBA is
alternate action (push-on; push off). The NO and NC (DPST) contacts switch when the button is
depressed and return when it is released. The contacts are UL listed with 7 AMP capacity. The
indicator LED and the switch LED can be individually operated according to the needs of the
installation. The indicator LED is mounted above the button and the switch LED illuminates the
button itself. The PB can be used for momentary release of fail safe or fail secure electric locks.
If interfaced with a release hold timer, it can provide for timed release of electric locks. It may
also be used to input a REX (request to exit) signal to a card reader system. We recommend
that the local building or fire safety authorit y be consulted prior to using exit buttons for door
egress. They may require a "no special knowledge" exit device such as Securitron's Touch
Sense Bar.
2. INSTALLATION
The PB comes with a retrofit mounting device and color coded hookup wires installed. The
drawing below shows identification of the unit's connection points.
WIRE IDENTIFICATION
REMOVE RESISTOR
INDICATOR
LED
FOR 12 VDC
OPERATION
YELLOW
NC
NO
REMOVE RESISTOR
FOR 12 VDC
OPERATION
BLACK
B
A
GREEN
YELLOW= INDICATOR LED POSITIVE
GREEN= SWITCH LED POSITIVE
BLACK= COMMON DC NEGATIVE
NC
NO
REAR OF UNIT
SHOWN
3. LAMP OPERATION
Resistors are installed so that the LEDs may be operated on either 12 or 24 VDC. The yellow
wire drives the indicator LED and the green wire drives the switch LED. Both wire s have a sin gle
resistor soldered on them. If the power supply is 24 VDC, connect dire ctly to the wires. If the
power supply is 12 VDC, remove the resistor for proper operation at the lower voltage.
The switch LED draws 30 mA and the indicator LED draws 20 mA at either voltage. For
replacement LEDs see chart below:
4. WIRING
NOTE: LIGHTS
OPERATE ON
24 VDC IF
RESISTORS NOT
REMOVED
The PB can be used in many different ways but the drawings below show two common
applications. The first shows momentary release of a fail safe or fail secure electric lock. The PB
indicators are connected so that the switch button illuminator is normally on. When the button
is pressed, releasing the lock, the switch LED turns off and the indicator LED comes on. The
second drawing shows timed release of a fail safe electric lock using the PB and Securitron's
© Copyright, 2012, all rights reserved PN# 500-11200
Page 1 Rev. E, 02/12
TimeMate. Momentarily pressing the button will release the lock for the amount o f time set on
the TimeMate. The LEDs will switch colors during the lock release period. The wiring is also
done in double break fashion so that even if the timer fails, the button will still be able to
momentarily release the lock. This is for added safety.
MOMENTARY RELEASE OF FAIL SAFE OR FAIL SECURE ELECTRIC LOCK
POWER
SUPPLY
POWER
SUPPLY
NC
IF FAIL SAFE
GREEN
NC
+
NO
PB
NO
YELLOW
IF FAIL SECURE
BLACK
TIMED DOUBLE BREAK RELEASE OF FAIL SAFE LOCK
GREEN
YELLOW
NO
YELLOW
NO
+
NC
PB
NC
BLACK
WHITE
RED
BLUE
GREEN
TIMEMATE
BLACK
+
ELECTRIC
+
D.C. LOCK
+
FAIL SAFE
D.C. LOCK
5. ALTERNATE LENS/LED CHANGING
The pushbutton is factory shipped with a green lens and a green LED installed and an optional
Red lens and red LED. Changing to the Red LED/lens set is simple.
1) Grasp keyplate and unscrew the mushroom lens counter-clockwise. Remove mushroom
lens and insert, save the white insert.
2) Turn the keyplate over and locate the pink and blue locking tabs at the bottom of the
switch. With a flat bladed screw driver lift both tabs simultaneously until the contact
blocks are loose from switch body. Pull the contact block away from the switch.
3) Grasp top of LED and push down slightly and rotate counter-clockwise, then pull LED
straight out to remove.
4) Insert the Red LED into the socket and reverse the steps to lock the LED into the socket.
5) Snap the contact block back onto the switch body. The blue contact should be on the
right side.
6) Replace the white insert back on the lip of the switch – careful to mat ch the tabs on the
insert with the notches on the switch lip. The word EXIT should be correct reading
orientation to the keyplate.
7) Place the Red lens over the insert on the switch and tighten lens clockwise - careful not to
dislodge the insert sitting in the notches. Tighten hand tight until tight, do not over
tighten.
PN# 500-11200
Page 2 Rev. E, 02/12
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