AT4146-020 NKK Switches, AT4146-020 Datasheet - Page 32
![REPLACEMENT KEY FOR CKM SERIES](/photos/38/63/386343/nkk_at4146-020_sml.jpg)
AT4146-020
Manufacturer Part Number
AT4146-020
Description
REPLACEMENT KEY FOR CKM SERIES
Manufacturer
NKK Switches
Type
Key, Tubularr
Series
ATr
Specifications of AT4146-020
Accessory Type
Replacement Key
Color
Black
Illumination
Not Illuminated
Height
3.5 mm
Length
33.5 mm
Width
26 mm
For Use With/related Products
CKM Series Tubular Key
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
CKM Series
Other names
Q2443014A
AT4179
Round Cap for Bright LED
Polycarbonate
Colors: JB JC JD JF
Series: LB Panel Seal
AT4181
Splashproof Boot Assembly
Boot Material: Black silicon rubber
Hex Nut Material & Finish:
Nickel plated brass
O-ring Material: Natural rubber
Series: M P S WT
1. Install switch bushing into mounting hole of panel from the back and
2. Install o-ring on bushing and tighten nut from above.
3. Insert boot onto nut. Be sure the boot and nut are a firm, secure fit.
Use boot, nut and o-ring as shown. Use lockwasher and hexagon nut
(from standard switch hardware) behind panel.
adjust bushing to protrude 3.5 ~ 5.5mm (.138 ~ .217”).
Color Codes:
• M Series B2 Toggles with 12mm B1 & B3 Bushings
• P Series B Toggles with 12mm Bushing
• S31 ~ 39, S41 ~ 49, S31F ~ 33F, S41F ~ S43F, S31T ~ 33T, S41T ~ 43T
• S301 ~ 309, S331 ~ 339, S301F, S331F ~ 333F, S335F, S301T ~ 309T, S331T ~ 339T
• S421 ~ 429, S421T ~ 429
• WT11S ~ 29S, WT11T ~ 29T, WT11L ~ 29L
• S1A ~ 7A, S21A, S1F ~ 7F, S21F
• S114, S116
• S1AW ~ 9AW, S21AW, S25AW ~ 29AW
M, P or S Toggles with 12mm Bushings
(19.0) Dia
.748
(3.5) ~ (5.5)
.138 ~ .217
Switch Installation Instructions
Non-Splashproof Switches
.354
(9.0)
A Black
(24.3)
.957
B White
(18.6)
.732
Boot
(14.8)
Nut
.583
O-ring
Panel
Series or Part Numbers
(12.1) Dia
.476
C Red
(21.5) Dia
.846
AT4180
Snap-on Knob
Polyamide
Knob: Black
Flange: Transparent brown
Series: FR01
(8.0) Dia
.315
M12 P1
(17.5) Dia
.689
D Amber
.378
(9.6)
.039
(1.0)
www.nkk.com
Accessories & Hardware
(3.5) ~ (5.5)
.138 ~ .217
S1AW ~ S29AW S Toggles
1. Stretch base of the boot to fit around outer edges of the nut.
2. The ridge inside of boot must be firmly seated in groove of the nut.
3. Moving all around perimeter, push (with about 10N of force) toward
Use boot, nut and o-ring as shown. Use o-ring only (from standard switch
hardware) behind panel.
center to assure boot seals tightly into groove (with no air pockets).
E Yellow
1
.083
(0.8)
.031
(2.1)
For 12mm Bushings in M, P, S & WT Toggles
1
2
F Green
Boot & Nut Assembly Instructions
Boot
Nut
O-ring
Panel
Splashproof Switches
3
Panel Thickness (Maximum)
G Blue
WT Toggles or M Toggle with B3 Bushing
3
3
5.0mm (.197”)
3.5mm (.138”)
3.0mm (.118”)
(3.5) ~ (5.5)
.138 ~ .217
H Gray
3
3
J Clear
Boot
Nut
O-ring
Panel
3
Y33
Y