Nascom Recessed 3/4" SPDT Door Contact N78CW/STSD, Wide Gap Switch & Magnet Set with Wire Leads for Steel/Wood Doors, White

Name: Nascom Recessed 3/4" SPDT Door Contact N78CW/STSD, Wide Gap Switch & Magnet Set with Wire Leads for Steel/Wood Doors, White
Brand: Nascom
SKU: Raz-N78CW/STSD
Price: 61.75 USD
Availability: InStock

Hidden in the frame. Heard by the panel.

A 3/4" recessed SPDT magnetic door contact set that conceals inside steel or wood doors and frames, so your alarm zone knows when a door opens.

$61.75

In stock

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Nascom Recessed 3/4" SPDT Door Contact N78CW/STSD

Snaps into steel, no glueRecessed 3/4" fit

Standard Gap: 1.25"Wide gap N35 NdFeB magnet

Surface contacts show, and they get in the way.

A door contact that sits on the surface is visible on the door and frame. A recessed set sits inside both, which keeps the installation clean on commercial, industrial and residential doors.

Without itWithout it, you mount visible hardware on the door and frame, or fit a contact that offers only one circuit type.

✓

With the N78CW/STSDThe SPDT switch gives normally open and normally closed contacts, so you can wire open-loop or closed-loop and keep the hardware out of sight.

What you get

Built for clean door installs

The N78C series pairs a concealed fit with a switch and magnet built for burglar alarm wiring.

SPDT flexibility

Single pole, double throw switching provides both normally open and normally closed contacts for open-loop or closed-loop circuits.

Nascom Recessed 3/4" SPDT Door Contact N78CW/STSD, Wide Gap Switch & Magnet Set with Wire Leads for Steel/Wood Doors, White

1.25"

Standard gap

The wide gap N35 NdFeB magnet supports a wide operating gap between switch and magnet.

Snap fit on steel

The switch snaps into the drilled hole on steel doors, so no glue is required.

Sealed contacts

The switch contacts are encapsulated and hermetically sealed inside a polypropylene housing.

Wire leads attached

12" 22 AWG wire leads are pre-attached, making it simple to splice into the alarm zone wiring.

Details

Everything you need to know.

Brand	Nascom
Model	N78CW/STSD
Series	N78C
Contact Configuration	SPDT
Contact Type	Closed Loop
Mounting	Recessed, 3/4"
Standard Gap	1.25" (31.75 mm)
Contact Resistance	0.15 Ω
Lead Length / Gauge	12" (304.8 mm) / 22 AWG
Housing Material	Polypropylene
Certification	UL634
Color	White

Description

Nascom Recessed 3/4" SPDT Door Contact N78CW/STSD, Wide Gap Switch & Magnet Set with Wi...

The Nascom N78CW/STSD is a recessed 3/4" magnetic door contact set from the N78C series with a single pole, double throw (SPDT) switch. It is concealed inside the door and frame for a clean installation on steel or wood doors, and suits installers who need the flexibility of both normally open and normally closed contacts. This version comes in white.

Key Features

SPDT contact configuration – Single pole, double throw switching provides both normally open and normally closed contacts, so it can be wired for open-loop or closed-loop circuits.
Snap fit on steel – Snaps into the drilled hole on steel doors, so no glue is required.
Wide gap N35 NdFeB magnet – A grade N35 neodymium (NdFeB) rare-earth magnet supports a wide operating gap between switch and magnet.
Encapsulated, hermetically sealed contacts – The switch contacts are encapsulated and hermetically sealed inside the housing for consistent operation.
Polypropylene housings – The switch and magnet housings are molded from polypropylene.
12" 22 AWG wire leads – Pre-attached wire leads make it simple to splice the contact into the alarm zone wiring.
Listed to UL634 – Listed to the UL634 standard for connectors and switches used with burglar alarm systems.

Specifications

Brand: Nascom
Model: N78CW/STSD
Series: N78C
Product Type: Magnetic contact switch/magnet set
Connectivity: Wired
Mounting: Recessed
Size: 3/4" recessed
Contact Configuration: SPDT
Contact Type: Closed loop
Standard Gap: 1.25" (31.75 mm)
Contact Resistance: 0.15 Ω
Termination: Wire leads
Lead Length: 12" (304.8 mm)
Lead Gauge: 22 AWG
Recommended Use: Door
Application: Commercial, industrial, residential; steel and wood doors
Magnet Material: Neodymium (N35 NdFeB)
Housing Material: Polypropylene
Certification: UL634
Color: White

Typical Uses

Concealed perimeter protection on entry and exit doors
Residential, commercial and industrial intrusion alarm systems
Steel and wood door installations where a hidden contact is preferred
Installations requiring a switchable N.O. or N.C. output

Please verify the hole size, door/frame material and required gap for your opening, and confirm the contact configuration and electrical ratings are compatible with your alarm panel or access control input before installing.

Good to know: This set is built for steel and wood doors; the snap fit with no glue is described for steel doors, where the switch snaps into the drilled hole.