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Case Dimensions:
Steel Case
Dial Size
10" Round Steel-Surface
10" Round Steel-Flush
12" Round Steel-Surface
12" Round Steel-Low Profile
12" Round Steel-Flush
12"Square Steel-Surface
16"Round Steel-Surface
16" Round Steel-Flush
Surface Mounting with Standard Surface Bracket
Case Styles: Surface, Low-Profile
Movement Types: SS-120V, SS-24V or SS-WIFI-2B/4B
Mount the surface bracket to the securely mounted single gang or handy electrical
box using 6-32 screws. The top of the clock case will be approximately 0.75" above
the electrical box. Leave a minimum of 4" to the ceiling to allow installation of the
acorn nut. Dimension D=1.0" for all clock sizes.
Case Styles: Surface, Low-Profile
Movement Types: SS-WIFI-HW
The mounting plate includes the transformer assembly. Connect the 120VAC wires to the
transformer and mount the bracket to a handy box with the transformer inside the box.
The plug-in cable will provide 24VAC to power the clock. Leave a minimum of 4" to the
ceiling to allow installation of the acorn nut.
Tel: (248) 380-6264 • (800) 326-8456 • Fax: (248) 380-6268 • 28045 Oakland Oaks Court • Wixom, MI 48393
ModElS SS-24 ,SS-120, SS-WiFi; STEEl CaSES
Flush
Surface
Low Profile
A
B
C
11.65"
3.25"
-
11.13"
1.38"
0.55"
13.50"
3.25"
-
13.38"
2.00"
-
13.00"
1.38"
0.55"
12.50"
2.75"
14.50"
16.98"
4.75"
-
16.50"
1.38"
0.55"
Case Styles: Surface, Low-Profile
Movement Types: SS-24V or SS-WIFI-2B/4B
Mount the surface bracket to the wall using wall anchors appropriate for the wall con-
struction. Battery powered and low voltage systems may not require an electrical box.
Mount the bracket at the desired height for the top of the clock case. Leave a minimum
of 4" to the ceiling to allow installation of the acorn nut.
Case Styles: Surface, Low-Profile
Movement Types: SS-WIFI-WT
Mount the surface bracket over a handy box with a duplex outlet. The wall transformer
plugs into the top outlet to power the clock. Leave a minimum of 4" to the ceiling to
allow installation of the acorn nut.
SPECTRUM SERiES
Steel Double Face
Dial Size
10" Round Steel-Double Face
12" Round Steel-Double Face
16" Round Steel-Double Face
12" Square Steel-Double Face
A
B
C
11.65"
8.63"
14.00"
13.50"
8.63"
16.00"
16.98"
8.63"
19.00"
12.50"
8.63"
14.50"
w w w . n a t s c o . n e t
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Summary of Contents for National SS-24 Series
- Page 1 SPECTRUM SERiES MoUnTing inSTRUCTionS ModElS SS-24 ,SS-120, SS-WiFi; STEEl CaSES Case Dimensions: Flush Steel Case Surface Low Profile Steel Double Face Dial Size Dial Size 10” Round Steel-Surface 11.65” 3.25” 10” Round Steel-Double Face 11.65” 8.63” 14.00” 10” Round Steel-Flush 11.13”...
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Page 2: Mounting Instructions
MounTIng InSTruCTIonS (ConTInuED) Surface Mounting with optional Screw Mount Bracket Case Style: Low-Profile Movement Types: SS-24V or SS-WIFI Use an appropriate wall anchor for the wall construction and place screw 1” lower that the desired height of the clock case. Mount the bracket at the desired height for the top of the clock case.