Process Sealed Miniature Rockers
Series M2
Distinctive Characteristics
Antijamming design protects against mechanism damage from
downward force on the actuator.
O-ring surrounding top of lever prevents liquids
from reaching switch mechanism.
Ultrasonic welding of upper and lower housing
seals out contaminants and allows automated
soldering and cleaning.
Terminals are epoxy sealed to prevent entry
of flux, solvents, and other contaminants.
Bracketed models have crimped bracket legs
to ensure secure PC mounting and prevent
dislodging during automated soldering.
Logic level and power capabilities are available
to suit varying applications.
Actual Size
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Process Sealed Miniature Rockers
Series M2
General Specifications
Electrical Capacity (Resistive Load)
Power Level (code W):
Logic Level (code G):
Logic/Power Level (code A):
6A @ 125V AC or 3A @ 250V AC;
4A @ 30V DC (On-On circuit) & 3A @ 30V DC (all other circuits)
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.
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Contact Timing:
Angle of Throw:
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
25,000 operations minimum for silver; 50,000 operations minimum for gold
Nonshorting (break-before-make)
26°
Materials & Finishes
Lever:
Actuator Clip:
Support Bracket:
Bushing/Housing:
Sealing Ring:
Base:
Movable Contacts:
Stationary Contacts:
Terminals:
Brass with chrome plating
Polyacetal
Brass with tin plating
Glass fiber reinforced polyamide (UL94V-0)
Nitrile butadiene rubber
Glass fiber reinforced polyamide (UL94V-0)
Silver alloy with silver plating (code W); copper or phosphor bronze 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 alloy with gold plating (code A)
Copper or brass with silver or gold plating
Environmental Data
Operating Temp Range:
Humidity:
Vibration:
Shock:
–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)
PCB Processing
Soldering:
Cleaning:
Wave Soldering Recommended: See Profile B in Supplement section.
Manual Soldering: See Profile B in Supplement section.
Automated cleaning. See Cleaning specifications in Supplement section.
Standards & Certifications
Flammability Standards:
UL Recognized:
C-UL Recognized:
CSA Certified:
R
UL94V-0 rated bushing/housing & base
All models recognized at 6A @ 125V AC, 3A @ 250V AC, & 4A @ 30V DC or 0.4A @ 28V DC;
UL File No. WOYR2.E44145; add “/U” to end of part number to order UL mark on switch.
All models recognized at 6A @ 125V AC, 3A @ 250V AC, & 4A @ 30V DC or 0.4A @ 28V DC;
C-UL File No. WOYR8.E44145; add “/C-UL” to end of part number to order C-UL mark on switch.
All models certified at 6A @ 125V AC, 3A @ 250V AC, & 4A @ 30V DC;
CSA File No. 023535-0-000;
add “/C” to end of part number to order CSA mark on switch.
03-07
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
Process Sealed Miniature Rockers
TYPICAL SWITCH ORDERING EXAMPLE
Series M2
D
C
M2T
2
2
TX
G
41
POLES
1
2
SPDT
DPDT
CONTACT MATERIALS & RATINGS
W
G
A
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
ROCKERS/PADDLES
D
E
F
G
.365” (9.27mm)
Wide Rocker
.365” (9.27mm)
Wide Paddle
.450” (11.43mm)
Wide Rocker
.450” (11.43mm)
Wide Paddle
CIRCUITS
2
3
5
8
9
ON
ON
ON
(ON)
ON
NONE
OFF
NONE
OFF
OFF
ON
ON
(ON)
(ON)
(ON)
13
30
41
PC TERMINALS
Straight with
.460” (11.7mm) Bracket
.150” (3.81mm) Right Angle
.150” (3.81mm) Vertical
A
B
C
( ) = Momentary
ROCKER/PADDLE
COLORS
Black
White
Red
Yellow
Green
Blue
Gray
MOUNTING FRAME
TX
For Actuators with
Straight or Angle
PC Mount
E
IMPORTANT:
Switches are supplied without
UL, C-UL, & CSA marking unless
specified. Specific models & rat-
ings noted on General Specifica-
tions page.
F
G
H
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
M2T22TXG41-DC
DPDT
ON-NONE-ON Circuit
Mounting Frame for Actuators
with Straight or Angle PC Mount
.150” (3.81mm) Vertical Terminals
.365” (9.27mm) Wide
Red Rocker
Gold Contacts with 0.4VA Rating
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Process Sealed Miniature Rockers
POLES & CIRCUITS
Rocker Position
( ) = Momentary
Down
Pole
Model
M2T12
M2T13
M2T15
M2T18
M2T19
M2T22
M2T23
M2T25
M2T28
M2T29
ON
ON
ON
(ON)
ON
ON
ON
ON
(ON)
ON
NONE
OFF
NONE
OFF
OFF
NONE
OFF
NONE
OFF
OFF
ON
ON
(ON)
(ON)
(ON)
ON
ON
(ON)
(ON)
(ON)
Center
Up
Connected Terminals
Down
Center
Up
Note:
Series M2
Throw & Schematics
Terminal numbers are
not actually on the switch.
2 (COM)
SP
2-3
OPEN
2-1
SPDT
3
1
DP
2-3 5-6
OPEN
2-1 5-4
DPDT
2
3
(COM)
1
6
5
4
MOUNTING FRAME
TX
Mounting Frame for Rockers or Paddles
with Straight or Angle PC Terminals
Straight PC Mounting
Right Angle PC Mounting
Vertical PC Mounting
26°
(2.54) Dia
.100
(2.54) Dia
.100
26°
(2.54) Dia
.100
Actuators & Panel Cutouts
Direction of Actuation
Direction of Actuation
(17.8)
.701
(12.7)
.500
AT4148
AT4149
(10.1)
.398
AT4150
AT4151
(12.4)
.490
CONTACT MATERIALS & RATINGS
W
G
Silver over Silver
Power Level
6A @ 125V AC & 3A @ 250V AC
Gold over Brass or Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Complete explanation of operating range in Supplement section.
A
Gold over Silver
Power Level
or Logic Level
6A @ 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.
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Process Sealed Miniature Rockers
PC TERMINALS
13
Straight with
.460” (11.7mm)
Bracket
(11.7)
.460
(5.9)
.232
(3.81)
.150
Series M2
30
.150” (3.81mm)
Right Angle
41
.150” (3.81mm)
Vertical
(3.81)
.150
ROCKERS & PADDLES
D
AT4148
.365” (9.27mm) Wide Rocker
(9.27)
.365
(16.87)
.664
(13.49)
.531
(7.9) (6.15)
.242
.311
(8.8)
.346
(4.2)
.165
(16.8)
.661
E
AT4149
.365” (9.27mm) Wide Paddle
(9.27)
.365
(2.13)
.084
(3.96)
.156
(8.43) R
.331
Material: Polyamide
Finish: Matte
Material: Polyamide
Finish: Matte
(18.8)
.740
(4.2)
.165
F
AT4150
.450” (11.43mm) Wide Rocker
(11.43)
.450
(11.8)
.465
(9.19)
.362
(8.1) (6.3)
.319 .248
(7.7)
.303
(4.2)
.165
G
AT4151
.450” (11.43mm) Wide Paddle
(11.43)
.450
(2.36)
.093
(3.18)
.125
(5.84) R
.232
(16.36)
.644
Material: Polyamide
Finish: Matte
Material: Polyamide
Finish: Matte
(4.2)
.165
(11.8)
.465
Cap Colors
Available:
A
Black
B
White
C
Red
E
Yellow
F
Green
G
Blue
H
Gray
TYPICAL SWITCH DIMENSIONS
Straight PC • Bracket
26°
(8.8)
.346
(1.6) Typ
.063
(11.7) Typ
.460
(4.8)
.189
(4.7) Typ
.185
3
2
1
Single Pole
(6.15)
.242
(4.2)
.165
NKK P/N
This Side
Double Pole
(1.6) Typ
.063
(2.4) Typ
.095
3
2
1
6
5
4
(7.9) Typ
.311
(4.7) Typ
.185
(1.8) Dia Typ
.073
(1.5) Dia Typ
.059
(7.9) Typ
.311
(4.7) Typ
.185
(1.8) Dia Typ
.073
(1.5) Dia Typ
.059
1
2
3
(0.5) Typ
.020
(0.8) Typ
.031
(4.7) Typ
.185
(15.75)
.620
(1.17) Typ
.046
(1.17) Typ
.046
(8.0)
.315
(11.5)
.453
(4.8)
.189
(3.2) Typ
.126
C
L
M2T12TXG13-DC
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
