Nascom N205AU-STSD, N205AU-STHS, N205AU-STFB, N205AU-STDD, N205AU-ST2CR Specsheet
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N205AU
OVERHEAD DOOR SWITCH WITH UNIVERSAL MAGNET
DESCRIPTION
Nascom’s N205AU is a wide gap standard size oor mount for commercial and
industrial overhead door applications with a universal magnet.
The N205AU combines the installers’ choice of contact conguration for maximum gap performance.
The closed loop versions of the N205AU prevent false alarms caused by the
side to side shifting of overhead doors with our unique NO DEAD SPOT™
technology.
FEATURES
• NO DEAD SPOT™ TECHNOLOGY • UNIVERSAL MOUNT
• EXTRA WIDE GAP - N35 NdFeB RARE EARTH MAGNET • 36” 22AWG WIRE LEADS
• 24” ARMORED CABLE LEAD PROTECTION • EXTRUDED ANODIZED (TYPE II) ALUMINUM
• INDUSTRY STANDARD SWITCH MOUNTING HOLES • 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:
N205AU/ST SILVER 2.00 to 3.50 200 VDC 0.5 Amps 10vA 1.5 Amps 150 mOhms
DUAL CLOSED LOOP, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N205AU/ST2CR SILVER 2.00 to 3.50 200 VDC 0.5 Amps 10vA 0.5 Amps 150 mOhms
OPEN LOOP, NORMALLY CLOSED, 1FB, SWITCH/MAGNET SET:
N205AU/STFB SILVER 1.75 to 3.00 30 VDC 0.2 Amps 3vA 0.5 Amps 100 mOhms
SINGLE POLE DOUBLE THROW, SWITCH/MAGNET SET:
N205AU/STSD SILVER 1.75 to 3.00 30 VDC 0.2 Amps 3vA 0.5 Amps 100 mOhms
DOUBLE POLE DOUBLE THROW, SWITCH/MAGNET SET:
N205AU/STDD SILVER
HIGH SECURITY, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N205AU/STHS SILVER 0.1875 to 0.50 300 VDC
1.75 to 3.00 30 VDC 0.2 Amps 3vA 0.5 Amps 100 mOhms
0.25
Amps
10vA
0.25
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. 120405-01 Rev. 2
1
4.300
109.22
.380
9.65
Front View
2.250
57.15
.876
22.25
1.375
34.93
Top View
4.000
101.60
4.300
109.22
.769
19.53
2.125
53.98
.406
10.31
1.157
29.39
2.645
67.18
Front View
End View
WIRING SCHEMATIC
N205AU
OVERHEAD DOOR SWITCH WITH UNIVERSAL MAGNET
SWITCH
CONTACT
CLOSED LOOP,
NORMALLY OPEN CONTACT
COMMON
(BROWN)
COMMON
(BROWN)
OPEN LOOP,
NORMALLY CLOSED CONTACT
NC, OPEN LOOP (WHITE)
NO, CLOSED LOOP (RED)
NC, OPEN LOOP (WHITE)
NC, OPEN LOOP (WHITE)
SWITCH
CONTACT
COMMON
(BROWN)
DUAL CLOSED LOOP,
NORMALLY OPEN CONTACTS
DPDT, DOUBLE POLE DOUBLE THROW SPDT, SINGLE POLE DOUBLE THROW
DIMENSIONS - IN [mm]
NC, OPEN LOOP (WHITE)
NO, CLOSED LOOP (RED)
SWITCH
MAGNET
INSTALLATION INSTRUCTIONS
The switch can be mounted on the oor at the base of the door or on the wall at the top of the door. For best performance, align the switch
and magnet housings and keep the gap distance between the switch and magnet as close as possible.
FLOOR MOUNT:
• With the overhead door closed, position the magnet on the lower right or left side of the door, then align the switch under the magnet.
Adjust the position of the switch and magnet to ensure there is adequate clearance between the housings (1/4” minimum).
• Make sure the stainless steel armored cable will not interfere with the door operation.
• Mark the mounting hole locations for the switch and magnet.
• Drill the marked locations on the door using a high speed drill adequately sized for self-tapping screws or machine screws.
• Mount the magnet on the door.
• Raise the door and drill the switch mounting hole locations using a masonry bit for concrete oors, sized to t expansion anchors for
#6 self-tapping screws.
• Secure the switch to the oor.
• Test the switch by attaching an ohm meter to the switch leads and operate the door.
• Connect the leads to the alarm system conductors.
Royne Industries LLC dba NASCOM
|
P: 800.843.5530
|
F: 800.727.4041
|
www.nascominc.com
DWG No. 1200405-01 Rev. 1
2
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