Nascom N78CWSHK-STHS, N78CW-STSD, N78CG-SWSD, N78CG-STFB, N78CWSHK-STSD Specsheet

N78C

3/4” RECESSED WIDE GAP STANDARD DOOR CONTACT SET

DESCRIPTION

Nascom’s N78C Series is a 3/4” recessed wide gap door contact designed for residential, commercial and industrial steel and wood door applications.

The N78C is the installer’s choice of contact configuration because the contact set is designed to cut installation times and helps to prevent false alarms caused by shifting or warping doors.

The N78C Series is designed for installation in every type of hinged door including wood doors.

FEATURES

• SNAP FIT ON STEEL - NO GLUE REQUIRED	• ENCAPSULATED HERMETICALLY SEALED CONTACTS
• 12” 22AWG WIRE LEADS	• POLYPROPYLENE HOUSINGS
• WIDE GAP - N35 NdFeB RARE EARTH MAGNET	• LISTED TO UL634 STANDARD

ORDERING INFORMATION

		OPERATE		CONTACT RATING			STATIC
			(Max DC/Peak AC Resistive)
PART							CONTACT
	COLOR	GAP
NUMBER			SWITCHING		CARRY		RESISTANCE
		(in inches)
			V	I	V	I	(50mV, 100mA)
CLOSED LOOP, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N78CB/ST	BROWN
N78CG/ST	GREY	1.00 to 2.00	200 VDC	0.5 Amps	10vA	1.5 Amps	150 mOhms
N78CT/ST	TAN
N78CW/ST	WHIITE
DUAL CLOSED LOOP, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N78CB/ST2CR	BROWN
N78CG/ST2CR	GREY	1.00 to 2.00	200 VDC	0.5 Amps	10vA	1.5 Amps	150 mOhms
N78CT/ST2CR	TAN
N78CW/ST2CR	WHIITE
OPEN LOOP, NORMALLY CLOSED, 1FB, SWITCH/MAGNET SET:
N78CB/STFB	BROWN
N78CG/STFB	GREY	0.75 to 1.25	30 VDC	0.2 Amps	3vA	0.5 Amps	150 mOhms
N78CT/STFB	TAN
N78CW/STFB	WHIITE
SINGLE POLE DOUBLE THROW, SWITCH/MAGNET SET:
N78CB/STSD	BROWN
N78CG/STSD	GREY	0.75 to 1.25	30 VDC	0.2 Amps	3vA	0.5 Amps	150 mOhms
N78CT/STSD	TAN
N78CW/STSD	WHIITE
DOUBLE POLE DOUBLE THROW, SWITCH/MAGNET SET:
N78CB/STDD	BROWN
N78CG/STDD	GREY	0.75 to 1.25	30 VDC	0.2 Amps	3vA	0.5 Amps	150 mOhms
N78CT/STDD	TAN
N78CW/STDD	WHIITE
HIGH SECURITY, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N78CB/STHS	BROWN
N78CG/STHS	GREY	0.1875 to	300 VDC	0.25	10vA	0.25	150 mOhms
N78CT/STHS	TAN	0.5000		Amps		Amps	initial
N78CW/STHS	WHIITE
							DWG No. 140204-02 Rev. 1
Royne Industries LLC, dba NASCOM |			P: 800.843.5530 |		F: 800.727.4041		| www.nascominc.com	38

N78C

3/4” RECESSED WIDE GAP STANDARD DOOR CONTACT SET

WIRING SCHEMATIC

SWITCH				SWITCH
CONTACT				CONTACT

CLOSED LOOP,		OPEN LOOP,		DUAL CLOSED LOOP,
NORMALLY OPEN CONTACT		NORMALLY CLOSED CONTACT		NORMALLY OPEN CONTACTS
		NC, OPEN LOOP (WHITE)
COMMON		NO, CLOSED LOOP (RED)			NC, OPEN LOOP (WHITE)
(BROWN)		NC, OPEN LOOP (WHITE)	COMMON		NO, CLOSED LOOP (RED)
COMMON		NC, OPEN LOOP (RED)	(BROWN)
(BROWN)
DPDT, DOUBLE POLE DOUBLE THROW			SPDT, SINGLE POLE DOUBLE THROW
DIMENSIONS - IN [mm]
	.910	.730		.910	.730
				23.11	18.54
	23.11	18.54
TOP			TOP
VIEW
	.490		VIEW
	12.45			.490
				12.45
	1.100	.375		1.100	.375
FRONT VIEW		9.53	FRONT VIEW		9.53
	27.94			27.94
	.060				.060
	1.52				1.52
	SWITCH			MAGNET

INSTALLATION INSTRUCTIONS

•Mark location for the switch on the door frame and mark the location for the magnet on the door.

•Make sure switch and magnet hole locations are aligned.

•Drill holes for the switch and magnet using a 3/4” Hole Saw for steel doors or a Forstner bit for wood doors.

•Press the magnet into the hole in the door until seated firmly against the head. Silicone may be used to secure the magnet in wood doors.

•Connect the switch leads to the alarm circuit conductors. Hold the wire leads (not the switch housing) when cutting and stripping to prevent damage to the switch.

•Feed the switch conductors into the hole and insert the switch housing pressing firmly until seated. Silicone may be used to secure the switch in wood doors.

•Test switch for correct operation and make sure gap performance is acceptable.

DWG No. 140204-02 Rev. 1

Royne Industries LLC, dba NASCOM | P: 800.843.5530 | F: 800.727.4041 | www.nascominc.com

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