Series MB2000
Miniature Pushbuttons
General
Specifications
Electrical Capacity (Resistive Load)
Power Level (silver):
Logic Level (gold):
Logic/Power Level:
(gold over silver)
6A @ 125V AC & 3A @ 250V AC or 3A @ 30V DC
0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Combines silver & gold ratings
Note: Find additional explanation dual rating & operating range in Supplement section.
Pushbuttons
Rockers
Toggles
C
Other Ratings
Programmable Illuminated PB
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Force:
Contact Timing:
Plunger Travel:
Pretravel:
Overtravel:
Total Travel
10 milliohms maximum for silver; 20 milliohms maximum for gold
1,000 megohms minimum @ 500V DC
1,000V AC minimum between contacts for 1 minute minimum;
1,500V AC minimum between contacts & case for 1 minute minimum
50,000 operations minimum for splashproof models; 100,000 for all other models
25,000 operations minimum for silver; 50,000 operations minimum for gold
50,000 operations minimum for silver at 3A @ 125V AC
Momentary Action: 1-pole 9.32N; 2-pole 16.18N; 4-pole 25.54N;
Alternate Action: 1-pole 4.41N; 2-pole 7.06N; 4-pole 11.77N
Slow make, slow break
Screw-on Cap (Mom.)
Screw-on Cap (Alt.)
Snap-on Cap (Mom. & Alt.)
.028” (0.71mm)
.110” (2.80mm)
.125” (3.19mm)
.043” (1.09mm)
.043” (1.10mm)
.050” (1.26mm)
.071” (1.80mm)
.153” (3.90mm)
.175” (4.45mm)
Brass w/nickel plating; polyacetal w/B1 bushing
Bushing:
Brass with nickel plating
Stainless steel
Case:
Diallyl phthalate resin (UL94V-0)
Phosphor bronze with silver or gold plating
Silver alloy (code W); copper with gold plating (code G); or silver alloy with gold plating (code A)
Silver with silver plating (code W); copper or brass with gold plating (code G); or
silver with gold plating (code A)
Copper or brass with silver plating; copper or brass with gold plating
–30°C through +85°C (–22°F through +185°F)
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range
& returning in 1 minute; 3 right angled directions for 2 hours
50G (490m/s
2
) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
B3 & D3 bushing options equivalent to IP67
1.5Nm (13.0 lb
•
in) for double nut; .7Nm (6.0 lb
•
in) for single nut
80.0N (18.0 lbf) maximum downward force on actuator
Wave Soldering (PC version): See Profile A in Supplement section.
Manual Soldering: See Profile A in Supplement section.
These devices are not process sealed. Hand clean locally using alcohol based solution.
UL94V-0 case
File No. E44145 - Recognized only when ordered with marking on switch.
Add “/U” or “/CUL” before dash in part number to order UL recognized switch.
All models recognized at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V DC max.
File No. 023535_0_000 - Certified only when ordered with marking on switch.
Add “/C” before dash in part number to order CSA certified switch.
All models certified at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V max.
Rotaries
Keylocks
Materials & Finishes
Plunger:
Frame:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Tactiles
Slides
Environmental Data
Operating Temp Range:
Humidity:
Vibration:
Shock:
Sealing:
Tilt
Installation
Touch
Mounting Torque:
Cap Installation Force:
Soldering Time & Temp:
Process Seal:
Indicators
Standards & Certifications
Flammability Standards:
UL:
Accessories
CSA:
Supplement
C72
www.nkk.com
Miniature Pushbuttons
Series MB2000
Toggles
Distinctive
Characteristics
Guide interlocked with actuator block prevents window locking and
maintains correct plunger alignment to assure contact stability.
Employs an over-center actuator mechanism, which diminishes
sparking and increases operating life in AC circuits.
High torque bushing construction prevents rotation
or separation from frame during installation.
Splashproof option (D3 and B3 bushing codes) features an
o-ring within the bushing and one under the face nut
to protect from splashed, sprayed, or spilled liquids.
High insulating barriers, formed in the molded
diallyl phthalate case, increase isolation of circuits
in multipole devices.
Prominent external insulating barriers increase
insulation resistance and dielectric strength.
Epoxy sealed terminals prevent entry of solder
flux and other contaminants.
Clinching of the frame to the case well above the base
and terminals provides 1,500V dielectric strength.
C
Actual Size
Bracket PC Mount
Page C80
www.nkk.com
C73
Supplement
Large Bushing
Page C87
Accessories
Indicators
Touch
Bushing Mount
Page C74
Tilt
Tactiles
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
Rockers
Series MB2000
Toggles
Bushing Mount Miniature Pushbuttons
TYPICAL SWITCH ORDERING EXAMPLE
Pushbuttons
Rockers
MB
C
2011
S
S1
W
01
C
Caps
A
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
A
G
W
Programmable Illuminated PB
Contact Materials
& Ratings
Silver
Rated 6A @ 125V AC
& 3A @ 250V AC
Gold
Rated 0.4VA max @
28V AC/DC max
Gold over Silver
Rated 6A @ 125V AC
& 0.4VA max @ 28V
AC/DC max
B
C
.315” (8.0mm) Diameter
.394” (10.0mm) Diameter
Cap Colors
A
B
C
E
F
G
H
Black
White
Red
Yellow
Green
Blue
Gray
( ) = Momentary
Keylocks
Plunger Types
S
L
Plunger for Screw-on Caps
Plunger for Snap-on Caps
S1
S2
S4
D1
D3
Rotaries
Bushings
.335” (8.5mm)
Threaded with Keyway
.335” (8.5mm)
Smooth with Keyway
.335” (8.5mm) Metric
Threaded with Keyway
.335” (8.5mm)
Threaded with D-Flat
.335” (8.5mm)
Threaded Splashproof
without Keyway
01
02
03
05
06
07
08
Slides
Terminals
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
IMPORTANT:
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.
Tactiles
Tilt
Touch
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
*
Wire harness & cable assemblies
offered only in Americas
MB2011SS1W01-CA
Indicators
Black .394” (10.0mm)
Diameter Cap
Plunger for Screw-on Caps
.335” (8.5mm) Threaded Bushing
with Keyway
Accessories
SPDT
ON-(ON) Circuit
Silver Contacts
with 6-Amp Rating
Supplement
Solder Lug Terminals
C74
www.nkk.com
Bushing Mount Miniature Pushbuttons
POLES & CIRCUITS
Plunger Position
( ) = Momentary
Normal
Pole
Model
Keyway
Series MB2000
Throw & Switch Schematics
Note: Terminal numbers are
not actually on the switch.
Rockers
Toggles
2 (COM)
Connected Terminals
Normal
Keyway
Down
Down
MB2011
SP
MB2065
ON
ON
(ON)
2-3
ON
2-1
SPDT
3
C
MB2061
DP
MB2085
ON
ON
(ON)
2-3 5-6
ON
4PDT
2-3 5-6
8-9 11-12
2-1 5-4
8-7 11-10
2
3
1
6
5
2-1 5-4
DPDT
3
2
(COM)
1
6
5
4
MB2181
4P
MB2185
ON
ON
(ON)
ON
4
9
7
12
10
On alternate action models, after transferring circuit, the plunger returns to its original position and does not latch down.
S
Plunger for Screw-on Caps
(2.9)
.114
(2.9)
.114
(3.0)
.118
(2.3)
.091
(4.7)
.185
(4.0)
.157
Momentary
Plunger Length
Momentary
Cap Location
Alternate
Plunger Length
Alternate
Cap Location
Touch
L
Plunger for Snap-on Caps
(3.0) Dia
.118
(10.4)
.410
(3.6)
.142
www.nkk.com
C75
Supplement
Momentary & Alternate
Plunger Length
Momentary & Alternate
Cap Location
Accessories
Indicators
Tilt
Tactiles
Slides
Rotaries
PLUNGER TYPES
Keylocks
(COM)
8
11
Programmable Illuminated PB
1
Pushbuttons
Series MB2000
Toggles
Bushing Mount Miniature Pushbuttons
BUSHINGS
Rockers
S1
(0.8)
.031
.335” (8.5mm)
Threaded with Keyway
S2
.335” (8.5mm)
Smooth with Keyway
S4
.335” (8.5mm) Metric
Threaded with Keyway
(0.8)
.031
1/4-40 Thd
(0.8)
.031
(9.0) Dia
.354
(6.2) Dia
.244
(9.0) Dia
.354
M6P0.75
Pushbuttons
C
(9.0) Dia
.354
(2.5)
.098
(8.5)
.335
(3.5)
.138
(2.5)
.098
(8.5)
.335
(3.5)
.138
(2.5)
.098
(8.5)
.335
(3.5)
.138
Programmable Illuminated PB
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
D1
.335” (8.5mm)
Threaded with D Flat
D3
1/4-40 Thd
.335” (8.5mm)
Threaded Splashproof without Keyway
1/4-40 Thd
(10.0) Dia
.394
(8.5)
.335
(3.5)
.138
Keylocks
(9.0) Dia
.354
(2.5)
.098
(8.5)
.335
(3.5)
.138
Rotaries
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
Panel Cutouts
For S1, S2, or S4 Bushing
with
Keyway
(5.6)
.220
(6.5) Dia
.256
(0.6)
.024
Maximum Panel Thickness with
Standard Hardware: .240” (6.1mm)
Slides
For S1 or S4 Bushing
with
Optional Locking Ring
For D1 Bushing
with
D Flat
(5.8)
.228
For D3 Bushing
without
Keyway
Tactiles
(6.5) Dia
.256
(2.2) Dia
.087
(6.5)
.256
(6.5) Dia
.256
(6.5) Dia
.256
Standard hardware for bushings S1, S4, & D1 includes 2 hex nuts & 1 lockwasher; D3 bushing has 1 hex nut & 1 o-ring.
Standard & optional hardware are illustrated following the Typical Switch Dimension drawings.
Tilt
Touch
CONTACT MATERIALS & RATINGS
W
G
Silver over Silver
Power Level
6A @ 125V AC & 3A @ 250V AC
Indicators
Gold over Brass or Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Accessories
Note: Complete explanation of operating range in Supplement section.
A
Gold over Silver
Power Level
or Logic Level
6A @ 125V AC & 3A @ 250V AC
or 0.4VA maximum @ 28V AC/DC maximum
Supplement
Note: This dual rated option is suitable when two or more identical switches are used in logic and in power circuits
within the same application. See Supplement section for complete explanation of dual rating and operating range.
C76
www.nkk.com
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