NKK MB2461A1A03 Snap-action pushbutton Datasheet

Snap-Action Pushbuttons
Series MB2400
Distinctive Characteristics
Snap-acting mechanism gives smooth actuation, short stroke,
light touch, and audible feedback. This mechanism also provides
long mechanical life.
High torque bushing construction prevents rotation or separation
from frame during installation.
Antijamming design protects contacts from damage due to
excessive downward force on the actuator.
Compatible companions with M series toggles. Body,
bushing, and footprint dimensions ideal for mounting
MB2400 pushbuttons and M toggles next to one another.
Stainless steel frame resists corrosion.
Longer center solder lug terminal simplifies wiring and
soldering.
Silver contacts of specially composed alloy for hardness.
Epoxy sealed terminals prevent entry of solder flux and other
contaminants.
Prominent external insulating barriers increase insulation resistance
and dielectric strength.
Actual Size
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Snap-Action Pushbuttons
Series MB2400
General Specifications
Electrical Capacity (Resistive Load)
Power Level (code W):
Logic Level (code G):
Logic/Power Level (code A):
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Force:
Travel
Materials & Finishes
Plunger:
Bushing:
Frame:
Case:
Base:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Environmental Data
Operating Temp Range:
Humidity:
Vibration:
Shock:
Installation
Mounting Torque:
Cap Installation Force:
Soldering:
Cleaning:
Standards & Certifications
Flammability Standards:
UL & C-UL Recognized:
R
CSA Certified:
3A @ 125V AC
0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Combines W & G ratings
Note: Find additional explanation of dual rating & operating range in Supplement section.
20 milliohms maximum for silver; 30 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
200,000 operations minimum
25,000 operations minimum for silver; 100,000 operations minimum for gold
Single pole 2.45N; double pole 3.92N
Pretravel .024” (0.6mm); Overtravel .016” (0.4mm); Total Travel .039” (1.0mm)
Brass with nickel plating
Brass with nickel plating
Stainless steel
Polybutylene terephthalate (PBT)
Diallyl phthalate resin
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 alloy 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/s2) acceleration (tested in 6 right angled directions, with 3 shocks in each direction)
1.5Nm (13.0 lb • in) for double nut; 0.7Nm (6.0 lb • in) for single nut
80.0N (18.0 lbf) maximum downward force on actuator
Wave Soldering (PC version): See Profile B in Supplement section.
Manual Soldering: See Profile B in Supplement section.
These devices are not process sealed. Hand clean locally using alcohol based solution.
See Cleaning Specifications in Supplement section.
UL94V-0 available
All single and double pole models recognized at 3A @ 125V AC or 0.4VA max. @ 28V DC max;
UL File No. WOYR2.E44145; add “/U” to end of part number to order UL mark on switch
C-UL File No. WOYR8.E44145; add “/C-UL” to end of part number to order C-UL mark on switch.
Single pole models with PC, solder lug, or Wirewrap terminals & double pole with PC or
Wirewrap terminals certified at 3A @ 125V AC or 0.4VA @ 28V maximum;
CSA File No. 023535-0-000; add “/C” to end of part number to order CSA mark on switch.
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Snap-Action Bushing Mount
Series MB2400
TYPICAL SWITCH ORDERING EXAMPLE
E1
11
MB24
61
SPDT
DPDT
ON
(ON)
ON
(ON)
W
Silver
Rated 3A @ 125V AC
G
Gold
Rated 0.4VA max @
28V AC/DC max
A
Gold over Silver
Rated 3A @ 125V AC
& 0.4VA max @ 28V
AC/DC max
( ) = Momentary
BUSHINGS
E1
.285” (7.24mm)
Threaded with D Flat
E2
.285” (7.24mm)
Smooth with D Flat
A1
.280” (7.1mm)
Threaded with Keyway
A2
.280” (7.1mm)
Smooth with Keyway
S1
.350” (8.9mm)
Threaded with Keyway
S2
.350” (8.9mm)
Smooth with Keyway
01
CONTACT MATERIALS
& RATINGS
POLES & CIRCUITS
11
W
F
A
CAPS
F
.201” (5.1mm)
Diameter
H
.295” (7.5mm)
Diameter
CAP COLORS
A
Black
B
White
C
Red
TERMINALS
01
Solder Lug
03
.250” (6.35mm) Straight PC
05
.425” (10.8mm) Wirewrap
06
.750” (19.05mm) Wirewrap
07
.964” (24.5mm) Wirewrap
IMPORTANT:
Switches are supplied without UL,
C-UL, & CSA markings unless
specified. Specific models & ratings noted on General Specifications page.
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
MB2411E1W01-FA
Black .201” (5.1mm) Diameter Cap
SPDT ON-(ON) Circuit
Silver Contacts with
3-Amp Rating
.285” (7.24mm) Threaded Bushing
with D Flat
Solder Lug Terminals
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Snap-Action Bushing Mount
Series MB2400
POLES & CIRCUITS
Plunger Position
( ) = Momentary
Normal
Connected Terminals
Down
Normal
Keyway
Throw & Switch Schematics
Down
Note: Terminal numbers are
not actually on the switch.
Keyway
Pole
Model
SP
MB2411
ON
(ON)
1-3
1-2
SPDT
DP
MB2461
ON
(ON)
1-3 4-6
1-2 4-5
DPDT
1 (COM)
3
2
1 (COM)
3
2
4
6
5
BUSHINGS
Note: Plunger selection is not required for MB2400 pushbuttons. The plunger can be used with or without a cap.
E1
.285” (7.24mm)
Threaded with D Flat
(0.8)
.031
1/4-40 Thd
(2.84) Dia
.112
(8.0) Dia
.315
(8.0) Dia
.315
(2.5)
.098
(5.54) (7.24)
.218 .285
.285” (7.24mm)
Smooth with D Flat
(8.0) Dia
.315
(5.54) (7.24)
.218 .285
(5.54)
.218
(6.2) Dia
.244
(2.84) Dia
.112
(8.0) Dia
.315
(5.54) (7.1)
.218 .280
(0.9)
.035
.350” (8.9mm)
Smooth with Keyway
(0.8)
.031
(2.5)
.098
(8.9)
.350
Maximum Panel Thickness with
Standard Hardware: .134” (3.40mm)
S2
(6.2) Dia
.244
(2.84) Dia
.112
(0.9)
.035
(2.5)
.098
(0.9)
.035
.280” (7.1mm)
Smooth with Keyway
(8.0) Dia
.315
(2.5)
.098
1/4-40 Thd
(2.84) Dia
.112
(8.0) Dia
.315
Maximum Panel Thickness with
Standard Hardware: .068” (1.74mm)
(0.8)
.031
.350” (8.9mm)
Threaded with Keyway
(0.8)
.031
(2.5)
.098
(5.54) (7.1)
.218 .280
A2
(6.2) Dia
.244
(2.84) Dia
.112
S1
1/4-40 Thd
(2.84) Dia
.112
(0.9)
.035
Maximum Panel Thickness with
Standard Hardware: .068” (1.74mm)
E2
.280” (7.1mm)
Threaded with Keyway
A1
(2.5)
.098
(0.9)
.035
(5.54)
.218
(8.9)
.350
(0.9)
.035
Panel Cutouts
For A1, A2, S1, or S2 Bushing
with Keyway
For E1 or E2 Bushing
with D Flat
(5.6)
.220
(6.5) Dia
.256
(0.6)
.024
(6.5) Dia
.256
With
Optional Locking Ring
(5.8)
.228
Standard hardware includes 2 hex nuts & 1 lockwasher.
Hardware is illustrated following the Typical Switch Dimension drawings.
(6.5) Dia
.256
(2.2) Dia
.087
(6.5)
.256
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Series MB2400
Snap-Action Bushing Mount
CONTACT MATERIALS & RATINGS
W
Silver over Silver
Power Level
3A @ 125V AC
G
Gold over Brass or Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Note: Complete explanation of operating range in Supplement section.
A
Power Level
or Logic Level
Gold over Silver
3A @ 125V AC
or 0.4VA maximum @ 28V AC/DC maximum
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.
TERMINALS
01
Epoxy Seal
.250” (6.35mm)
Straight PC
03
Solder Lug
(4.0)
.157
Epoxy Seal
(2.0)
.079
(2.0)
(1.1) .079
.043
Thk = (0.8)
.031
(6.35)
(4.8) .250
.189
(1.17)
.046
Thk = (0.8)
.031
(4.8)
.189
3
2
(4.7) Typ
.185
1
(1.8) Dia Typ
.073
Single Pole
3
6
2
5
1
4
(4.7) Typ
.185
(1.8) Dia Typ
.073
Double Pole
05
.425” (10.8mm)
Wirewrap or Extended PC
06
.750” (19.05mm)
Wirewrap or Extended PC
07
.964” (24.5mm)
Wirewrap or Extended PC
Refer to the
footprints if using
as extended PC
terminal.
Epoxy Seal
A
Dimension A =
terminal lengths as
shown beside the
code boxes above.
(1.27)
.050
Thk = (0.8)
.031
CAPS & CAP COLORS
F
AT475
.201” (5.1mm)
Diameter Cap
Material: Polyamide
H
(5.1) Dia
.201
(6.4)
.253
(4.0)
.157
AT496
.295” (7.5mm)
Diameter Cap
(7.5) Dia
.295
(6.4)
.253
(4.0)
.157
Material: Polyamide
Finish: Glossy
Finish: Glossy
Cap Colors
Available:
A
Black
B
White
C
Red
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Series MB2400
Snap-Action Bushing Mount
TYPICAL SWITCH DIMENSIONS
Solder Lug
Single Pole
(1.1) x (2.0) Typ
.043 x .079
(0.8) Typ
.031
(2.4)
.096
(5.1) Dia
.201
(2.84) Dia
.112
Flat
(13.0)
.512
NC
(4.7) Typ
.185
1/4-40 Thd
(6.4)
.253
(7.24)
.285
(0.9)
(4.5)
.035
.177
(14.0)
.552
3
NO
2
COM
1
(4.0)
.157
(2.0)
.079
(7.9)
.311
MB2411E1W01-FA
Solder Lug
Double Pole
(1.1) x (2.0) Typ
.043 x .079
(0.8) Typ
.031
(2.4)
.096
(5.1) Dia
.201
(2.84) Dia
.112
Flat
(13.0)
.512
(4.7) Typ
.185
1/40-40 Thd
(6.4)
.253
(7.24)
.285
(0.9)
(4.5)
.035
.177
(14.0)
.552
NC
6
3
NO
5
2
COM
4
1
(4.0)
.157
(4.8)
.189
(12.7)
.500
(2.0) Typ
.079
MB2461E1W01-FA
HARDWARE
Standard Hardware
1/4-40 Thd
AT513H Inch Threaded
Hexagon Nut
(8.0)
.315
2 included with each switch
AT509
Lockwasher
(6.4) Dia (10.2) Dia
.252
.402
1 included with each switch
Material:
Brass with Nickel Plating
(9.0)
.354
Material:
Steel with Zinc/Chromate
(1.5)
.059
(0.5)
.020
Optional Hardware
AT507H
Locking Ring
for A1 or S1 Bushing
(6.35) Dia
.250
(12.0) Dia
.472
(2.0)
.079
Material:
Steel with Zinc/Chromate
Material:
Steel with Zinc/Chromate
(5.5) or
.229
(1.7)
.067
AT515
Locking Ring
for E1 Bushing
(0.8)
.031
(6.2) Dia
.244
(2.0)
.079
(1.68)
.066
(5.5)
.217
(12.0) Dia
.472
(0.8)
.031
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
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