Nascom N55W-SWFB, N55B-SW, N55W-SW, N55W-STFB, N55W-ST Specsheet
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1/4 INCH RECESSED WIDE GAP STANDARD PRESS FIT SWITCH SET
DESCRIPTION
The N55 is a ¼ inch diameter recessed press t wide gap switch set with a ¼
inch X ¾ inch bare rare earth magnet. The N55 is designed for narrow applications where drilling space is limited.
The N55 is the installer’s choice of contact conguration where excellent air
and side-to-side gaps are required to stop false alarms, caused by shifting or
warping doors and windows.
FEATURES
• Slim design • Reduced false alarms
• Encapsulated hermitically sealed contacts • Polypropylene housing
• Press-t no glue required • 12 inch 22 AWG wire leads
• Wide gap - N35 NdFeB rare earth magnet • Listed to UL634 standard
ORDERING INFORMATION
N55
CONTACT RATING
PART
NUMBER
COLOR
OPERATE
GAP
(in inches)
(Max DC/Peak AC Resistive)
SWITCHING CARRY
V I V I
CLOSED LOOP, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N55B/ST
N55G/ST
N55W/ST
OPEN LOOP, NORMALLY CLOSED, 1FB, SWITCH/MAGNET SET:
N55B/STFB
N55G/STFB
N55W/STFB
BROWN
GREY
WHIITE
BROWN
GREY
WHIITE
0.75 to 1.25 200 VDC 0.5 Amps 10vA 1.5 Amps 150 mOhms
0.65 to 1.25 30 VDC 0.2 Amps 3vA 0.5 Amps 150 mOhms
WIRING SCHEMATIC
SWITCH
CONTACT
SWITCH
CONTACT
CLOSED LOOP,
NORMALLY OPEN CONTACT
OPEN LOOP,
NORMALLY CLOSED CONTACT
STATIC
CONTACT
RESISTANCE
(50mV, 100mA)
Royne Industries LLC, dba NASCOM
|
P: 800.843.5530
|
F: 800.727.4041
|
www.nascominc.com
DWG No. 131125-03 Rev. 1
1
1.175
29.85
12.00
304.80
2X
.050
1.27
.250
6.35
END VIEW
FRONT VIEW
.750
19.05
.250
6.35
FRONT VIEW
END VIEW
DIMENSIONS - IN [mm]
N55
1/4 INCH RECESSED WIDE GAP STANDARD PRESS FIT SWITCH SET
SWITCH
MAGNET
INSTALLATION INSTRUCTIONS
• Mark the desired location for the switch and magnet on the top edge of the door and door frame making sure your marks
are in alignment.
• Using a square, transfer the marks on to the top edge of the door and the opposing door frame.
• Using a tape measure or graduations on the square, locate the center of the door edge and place an intersecting line with
the rst mark. Drill a ¼” hole at the location where the marks intersect.
• Repeat the above step to locate the hole position for the switch in the door frame. Drill a ¼” hole in the door frame.
• Apply adhesive or RTV to the end of the magnet and press the magnet into the hole you drilled in the door until ush with
top edge of door.
• Connect the switch leads to the alarm system. Caution! Hold wire leads, not the switch housing while cutting and strip-
ping to prevent damage to switch.
• Insert wire leads into hole followed by the switch and press the switch into the hole until the head is ush with the door
frame.
• Test system for correct operation.
Royne Industries LLC, dba NASCOM
|
P: 800.843.5530
|
F: 800.727.4041
|
www.nascominc.com
DWG No. 131125-03 Rev. 1
2
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