3 Amp Momentary Pushbuttons
Series SB
Distinctive Characteristics
Optional caps in different colors to vary appearance
as needed.
Low operating force for ease of actuation.
Rear panel bushing mount with compact
behind panel dimension.
Internal antijamming feature to protect the
contacts from damage due to excessive
force on the plunger.
Low cost device of rugged one-piece bushing
and housing construction.
Reliability of construction with an internal guide to
maintain contact alignment.
Epoxy sealed terminals.
Actual Size
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
½½½½½½½½½½½½½½½½½½½½½½½½½½½
3 Amp Momentary Pushbuttons
½½½½½½½½½½½
Series SB
½½½½½½½½½½½½½½½½½½½½½
General Specifications
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½
½
½
½
½½½½½½½½½½½½½
½½½½½½½½½½½½½½
½
½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
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½½½½½½½½½½½½½
½
½½½½½½½½½½½½½½½½½½½½½
½
½
½
½½½½½½½½½½½½½½½½½½½½½½½
½
½½½½½½½½½½½½½½½½½½½½½
½
½½½½½½½½½½½½½½½½½
½
½½½½½½½½½½½½½½½½½
½ ½½½½½½½½½½½½½½½½½½½½½½½½½
½
½½½½½½½½
½
½
½
½
½
½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
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½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½
½½½½½½½½½½½½½½½
½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½
½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½
½
½
½
½
½
½
½½½½½½½½½
½½½½½½½½½
½½½½½½
½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½
½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½
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½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½
½
½
½
½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½
Soldering Time &
½½½½½½½½½½½½½
Temperature:
½
UL Recognized:
Standards & Certifications
½
½
½
½½½½½½½½½½½½½½½
½
C-UL Recognized:
½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
Manual Soldering:
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
See Profile A in Supplement section.
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
Models rated 3A @ 125V AC & 2A @ 250V AC.
½½½½½½½½½½½½½½½½½½½½½½½½½½
pole: Momentary action circuit with solder lug terminations.
Single
R
½
½
½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
UL File Number: WOYR2.E44145; add “/U” to end of part number to order UL mark on switch.
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
Models rated 3A @ 125V AC & 2A @ 250V AC. Single pole: Momentary action circuit with solder
lug terminations. C-UL File Number: WOYR8.E44145; add “/C-UL” to end of part number to order
½½½½½½½½½½½½½½
C-UL mark on switch.
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½ ½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
CSA Certified:
½
Models rated 3A @ 125V AC & 2A @ 250V AC. Single pole: Momentary action circuit with solder
lug terminations. CSA File Number: 023535-0-000; add “/C” to end of part number to order
CSA mark on switch.
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
½½½½
3 Amp Momentary Pushbuttons
TYPICAL SWITCH ORDERING EXAMPLE
Series SB
SB40
POLE & CIRCUITS
Normally Open
11NO
11NC
SPST
SPST
OFF
ON
11NO
M
CONTACT MATERIALS & RATINGS
No
Code
G
Silver Contacts
3A @ 125V AC or 2A @ 250V DC
Gold Contacts
0.4VA max. @ 28V AC/DC max.
PLUNGER COLORS
No Code
Black
Red
C
(ON)
(OFF)
Normally Closed
( ) = Momentary
BUSHINGS
M
H
Metric Threaded M12 P1
Inch Threaded 15/32-32 NS
SLIP-ON CAP & COLORS
No Code
2A
2B
2C
2E
2F
2G
Without Cap
Black
White
Red
Yellow
Green
Blue
IMPORTANT:
Switches are supplied without UL,
C-UL & CSA markings unless speci-
fied. Specific models & ratings are
noted on General Specifications page.
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
SB4011NOM
Standard Black Plunger
without Slip-on Cap
SPST OFF-(ON)
Normally Open Circuit
Metric Threaded Bushing
Silver Contacts with
3-Amp Rating
POLE & CIRCUITS
Plunger Position
( ) = Momentary
Normal
Pole
SP
Model
SB4011NO
SB4011NC
OFF
ON
(ON)
(OFF)
OPEN
1-2
1-2
OPEN
SPST
Down
Connected Terminals
Normal
Down
Throw & Switch Schematics
Note: Terminal numbers are
not actually on the switch.
NO
1
2
NC
1
2
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
FPGA/CPLD
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