Large Bushing Miniature Pushbuttons
Series MB2000
W
01
B
C
D
E
TYPICAL SWITCH ORDERING EXAMPLE
Poles & Circuits
2011
2065
2061
2085
2181
2185
SPDT
SPDT
DPDT
DPDT
4PDT
4PDT
ON
ON
ON
ON
ON
ON
(ON)
ON
(ON)
ON
(ON)
ON
G
W
Contact Materials
& Ratings
Silver
Rated 6A @ 125V AC
& 3A @ 250V AC
Gold
Rated 0.4VA max @
28V AC/DC max
Caps
.315” (8.0mm) Diameter
.394” (10.0mm) Diameter
.520” (13.2mm) Diameter
.748” (19.0mm) Diameter
C
( ) = Momentary
Cap Colors
Terminals
A
B
C
*D
*E
F
*G
*H
Black
White
Red
Amber
Green
Blue
Gray
Yellow
Plunger Type
S
Plunger for Screw-on Caps
01
02
03
05
06
07
08
Solder Lug*
Quick Connect
.250” (6.35mm) Straight PC
.425” (10.8mm) Wirewrap
.750” (19.05mm) Wirewrap
.964” (24.5mm) Wirewrap
1.062” (27.0mm) Wirewrap
Bushings
B1
B3
.472” (12.0mm)
Threaded with Keyway
.472” (12.0mm)
Threaded w/Splashproof
*
Not available
with cap code E
*
Wire harness & cable assemblies
offered only in Americas
Switches are supplied without UL,
cULus & CSA marking unless specified.
UL, cULus & CSA recognized only when
ordered with marking on the switch.
Specific models, ratings, & ordering in-
structions are noted on General Specifi-
cations page.
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
MB2011SB1W01-DA
Black .520” (13.2mm)
Diameter Cap
Plunger for Screw-on Caps
.472” (12.0mm) Diameter
Threaded Bushing with Keyway
Silver Contacts with
6-Amp Rating
Solder Lug Terminals
www.nkk.com
SPDT ON-(ON) Circuit
C87
Supplement
Accessories
Indicators
Touch
Tilt
Tactiles
IMPORTANT:
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
Rockers
MB
2011
S
B1
D
A
Toggles
Series MB2000
Toggles
Large Bushing Miniature Pushbuttons
POLES & CIRCUITS
Plunger Position
( ) = Momentary
Rockers
Connected Terminals
Normal
Keyway
Throw & Switch Schematics
Note: Terminal numbers are
not actually on the switch.
2 (COM)
Normal
Pole
Model
Keyway
Down
Down
Pushbuttons
C
SP
MB2011
MB2065
MB2061
MB2085
MB2181
MB2185
ON
ON
ON
ON
ON
ON
(ON)
ON
(ON)
ON
(ON)
ON
2-3
2-1
SPDT
3
1
Programmable Illuminated PB
DP
2-3 5-6
2-1 5-4
DPDT
4PDT
3
2
3
(COM)
1
6
5
4
4P
2-3 5-6
8-9 11-12
2-1 5-4
8-7 11-10
2
1
6
5
(COM)
4
9
8
7
12
11
10
Keylocks
PLUNGER TYPE
S
Plunger for
Screw-on Caps
Plunger is plastic
for B1 bushing.
(6.4) Dia
.252
(5.3)
.208
(6.7) Dia
.264
Rotaries
Plunger is metal for
B3 bushing.
(5.3)
.208
On alternate action models, after
transferring circuit, the plunger
returns to its original position,
and does not latch down.
BUSHINGS
Slides
B1
.472” (12.0mm) Diameter
Threaded with Keyway
(1.85)
.073
(5.0)
.197
(1.1)
.043
M12P1
B3
.472” (12.0mm) Diameter
Threaded Splashproof
M12P1
(2.0)
.079
Maximum Panel
Thickness with
Standard Hardware:
.217” (5.5mm)
Maximum Panel
Thickness with
Standard Hardware:
.217” (5.5mm)
Tactiles
(4.9)
.193
Tilt
(12.0)
.472
(18.0) Dia
.709
(12.0)
.472
Panel Cutouts
(12.5) Dia
.492
Touch
For B1 Bushing
with Keyway
(1.5)
.060
(11.5)
.453
For B1 Bushing
with Locking
Ring
(12.5) Dia
.492
(9.0)
.354
(3.0) Dia
.118
For B3 Bushing
without Keyway
(12.5) Dia
.492
Indicators
CONTACT MATERIALS & RATINGS
W
G
Silver over Silver
Power Level
6A @ 125V AC & 3A @ 250V AC
Supplement
Accessories
Gold over Brass or Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Note: Complete explanation of operating range in Supplement section.
C88
www.nkk.com
Large Bushing Miniature Pushbuttons
TERMINALS
01
Solder Lug
Epoxy Seal
(2.0)
.079
(4.0)
.157
Series MB2000
02
.062” (1.57mm) Wide
Quick Connect
Epoxy Seal
(6.35)
.250
(1.57)
.062
Thk = (0.8)
.031
03
.250” (6.35mm)
Straight PC
3
2
3
(4.8)
.189
C
6
5
4
3
6
5
4
9
8
7
12
11
10
(4.8) Typ
.189
(4.7) Typ
.185
(4.7) Typ
.185
(1.8) Dia Typ
.073
2
1
(4.7) Typ
.185
2
1
Epoxy Seal
(6.35)
(4.8) .250
.189
1
(1.17)
.046
Thk = (0.8)
.031
(1.8) Dia Typ
.073
(1.8) Dia Typ
.073
Single Pole
Double Pole
Four Pole
06
07
08
.750” (19.05mm)
Wirewrap or Extended PC
.964” (24.5mm)
Wirewrap or Extended PC
1.062” (27.0mm)
Wirewrap or Extended PC
Epoxy Seal
A
(1.27)
.050
Thk = (0.8)
.031
If using as extended PC terminal, refer to the above footprints.
Dimension A = terminal lengths as shown beside the terminal
codes at the left.
CAPS & CAP COLORS
B
AT078
.315” (8.0mm)
Diameter Screw-on Cap
C
AT079
.394” (10.0mm)
Diameter Screw-on Cap
D
AT414
.520” (13.2mm)
Diameter Screw-on Cap
E
AT412
.748” (19.0mm)
Diameter Screw-on Cap
Colors Available:
ABCEFGH
Colors Available:
ABCEFGH
(10.0) Dia
.394
(6.5)
.256
(13.28)
.523
(8.0)
.315
Colors Available:
ABCDEFGH
(13.2) Dia
.520
(11.0)
.433
Colors Available:
ABCF
(19.0) Dia
.748
(12.0)
.472
(8.0)
.315
(8.0) Dia
.315
(11.79)
.464
(15.0)
.590
Cap Color
Codes:
A
Black
B
White
C
Red
D
Amber
E
Yellow
F
Green
G
Blue
H
Gray
www.nkk.com
C89
Supplement
Accessories
Indicators
Touch
Material:
Polystyrene
Finish:
Glossy
Material:
Polystyrene
Finish:
Glossy
Material:
PBT
Finish:
Glossy
Material:
Polystyrene
Finish:
Glossy
Tilt
Tactiles
Slides
Rotaries
Keylocks
05
.425” (10.8mm)
Wirewrap or Extended PC
Programmable Illuminated PB
Pushbuttons
(2.0)
(1.1) .079
.043
Thk = (0.8)
.031
Rockers
Toggles
Series MB2000
Toggles
Large Bushing Miniature Pushbuttons
TYPICAL SWITCH DIMENSIONS
Solder Lug
Rockers
Single Pole
Keyway
M12P1
Pushbuttons
(1.1) x (2.0) Dia Typ
.043 x .079
(0.8) Typ
.031
3
C
(13.2) Dia
.520
(4.7) Typ
.185
(4.0)
.157
(13.0)
.512
(0.5)
.020
(4.5)
.177
COM
2
(13.0)
.512
1
Programmable Illuminated PB
(7.9)
.311
(15.0)
.590
(12.0)
.472
(17.5)
.689
(2.0)
.079
MB2011SB1W01-DA
Keylocks
Solder Lug
Double Pole
Keyway
M12P1
(1.1) x (2.0) Dia Typ
.043 x .079
(0.8) Typ
.031
6
3
Rotaries
(13.2) Dia
.520
COM
5
2
(4.7) Typ
.185
(4.0)
.157
(13.0)
.512
(0.5)
.020
(4.5)
.177
(13.0)
.512
4
1
Slides
(2.0) Typ
.079
(4.8)
.189
(12.7)
.500
(15.0)
.590
(12.0)
.472
(17.5)
.689
Tactiles
MB2061SB1W01-DA
Touch
Tilt
Solder Lug
Four Pole
Keyway
M12P1
(1.1) x (2.0) Dia Typ
.043 x .079
(0.8) Typ
.031
12
9
8
7
6
5
4
3
2
1
Indicators
(13.2) Dia
.520
COM
11
10
(4.7) Typ
.185
(4.0)
.157
(13.0)
.512
(0.5)
.020
(4.5)
.177
(13.0)
.512
Accessories
(2.0) Typ
.079
(4.8) Typ
.189
(22.3)
.878
(15.0)
.590
(12.0)
.472
(17.5)
.689
Supplement
MB2181SB1W01-DA
C90
www.nkk.com
Large Bushing Miniature Pushbuttons
HARDWARE
Standard Hardware for B1 Bushing
AT503M
Hex Face Nut
Material:
Brass with Chrome plating
AT508
Lockwasher
Material:
Steel with Zinc/Chromate
AT527M
Hex Nut
Series MB2000
Toggles
AT506M
Locking Ring
Material:
Steel with Zinc/Chromate
C
M12 P1
M12 P1
(14.3)
.563
(15.8) Dia
.622
(14.0)
.551
(2.8)
.110
(11.5)
.453
(18.2) Dia
.717
(13.8) Dia
.543
Standard Hardware for B3 Bushing
AT503M
Hex Face Nut
Material:
Brass with Chrome plating
AT401P
O-ring
(14.3)
.563
M12 P1
(16.0)
.630
(2.4)
.094
(1.5)
.059
Optional Splashproof Boot for B1 Bushing
AT4043
Splashproof Boot
Material: Silicone Rubber
Operating Life: 10,000 for momentary
30,000 for alternate action
When using a splashproof boot, no cap is required.
(10.7)
.421
(9.0)
.354
M12 P1
(4.0) Max
.157
(3.5) Min
.138
www.nkk.com
C91
Supplement
Accessories
Indicators
(18.0) Dia
.709
(12.6) Dia
.496
(9.6) Dia
.378
Touch
Tilt
Tactiles
Slides
Material:
Nitrile butadiene rubber
(12.1) Dia
.476
(17.5) Dia
.689
Rotaries
Keylocks
(16.0)
.630
(2.4)
.094
(1.0)
.039
(0.5)
.020
(16.0)
.630
(2.0)
.079
(2.8)
.110
(9.5)
.374
(1.0)
.039
Programmable Illuminated PB
(12.1)
.476
(12.1) Dia
.476
Pushbuttons
Material:
Steel with Nickel plating
Rockers
