N1175 3750
3/8” RECESSED MINI CONTACT WITH CYLINDER NdFeB MAGNET
DESCRIPTION
Nascom’s N1175 3750 Series, mini 3/8” recessed contact with cylinder
neodymium magnet, protects all nonferrous (e.g. wood, aluminum and vinyl)
doors and windows, in both residential and commercial settings.
The N1175 3750 is the installer’s choice of contact conguration where drill
depth is critical and excellent air and side-to-side gap are required to prevent
false alarms caused by shifting or warping doors and windows.
FEATURES
• PRESS FIT SWITCH - NO GLUE REQUIRED • ENCAPSULATED HERMETICALLY SEALED CONTACTS
• 12” 22AWG WIRE LEADS • POLYPROPYLENE HOUSING
• WIDE GAP - N35 NdFeB RARE EARTH MAGNET • LISTED TO UL634 STANDARD
ORDERING INFORMATION
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:
N11753750B/ST
N11753750G/ST
N11753750W/ST
HIGH SECURITY, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N11753750B/STHS
N11753750G/STHS
N11753750W/STHS
BROWN
GREY
WHIITE
BROWN
GREY
WHIITE
1.00 to 1.50 200 VDC 0.5 Amps 10vA 1.5 Amps 150 mOhms
0.1875 to 0.50 300 VDC
0.20
Amps
WIRING SCHEMATIC
SWITCH
CONTACT
CLOSED LOOP,
NORMALLY OPEN CONTACT
3vA 0.5 Amps
STATIC
CONTACT
RESISTANCE
(50mV, 100mA)
150 mOhms
initial
Royne Industries LLC, dba NASCOM
|
P: 800.843.5530
|
F: 800.727.4041
|
www.nascominc.com
DWG No. 131119-02 Rev. 1
1
.680
17.27
.030
0.76
.465
11.81
.355
9.02
FRONT
VIEW
TOP
VIEW
DIMENSIONS - IN [mm]
N1175 3750
3/8” RECESSED MINI CONTACT WITH CYLINDER NdFeB MAGNET
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 3/8” 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 3/8” 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. 131119-02 Rev. 1
2