NC1175T 3750
3/8” RECESSED MINI CONTACT SET WITH NdFeB MAGNET
DESCRIPTION
Nascom’s NC1175T 3750 Series, mini 3/8” recessed screw terminal contact,
protects all nonferrous (e.g. wood, aluminum and vinyl) doors and windows, in
both residential and commercial settings.
The NC1175T 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
• POLYPROPYLENE HOUSINGS • LISTED TO UL634 STANDARD
• WIDE GAP - N35 NdFeB RARE EARTH MAGNET
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:
NC1175T3750B/ST
NC1175T3750G/ST
NC1175T3750W/ST
HIGH SECURITY, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
NC1175T3750B/STHS
NC1175T3750G/STHS
NC1175T3750W/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. 131120-02 Rev. 1
1
DIMENSIONS - IN [mm]
26.29
1.035
17.27
.680
8.74
.344
21.13
.832
11.81
.465
NC1175T 3750
3/8” RECESSED MINI CONTACT SET WITH 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 wire leads to screw terminal.
• 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. 131120-02 Rev. 1
2