P
USHBUTTON
S
WITCHES
16
MM
M
INIATURE
P
ANEL
S
EALED
M
ETAL
The 57M is a miniature switch designed for
rugged environments. The housing is zinc alloy
with velour chrome plating. It is available as
maintained or momentary action, Electro-
mechanical operation with Gold plated contacts
and solder terminals. It is ideal for a multitude of
applications.
A
PPLICATIONS
•
•
•
•
•
•
•
Security Equipment
Industrial Control
Medical Equipment
Military Equipment
Food Processing
Transportation
Computers
A
CTUAL
S
IZE
K
EY
F
EATURES
:
•
Zinc Alloy/Velour Chrome Plated
•
Center Spot LED and Non-Lighted
Versions
•
Maintained or Momentary Action
•
•
•
•
Panel Sealed to IP67
RoHS Compliant
Electro-Mechanical
Gold Plated Contacts and
Terminals
O
RDERING
I
NFORMATION
:
† Lighted switches come
with wires on LEDs to
protect from solder heat.
* Current limiting resistor is
required to limit LED
forward current to 20 mA
(not included).
** 12 and 24 V resistors are
available with wirelead
versions only.
S
TANDARDS
/ A
GENCY
/ R
ATINGS
:
www.itwswitches.com
28
Contact an Authorized Distributor or Factory for Pricing
S
ERIES
57M: 16
MM
M
INIATURE
P
ANEL
S
EALED
M
ETAL
P
RODUCT
D
RAWINGS
2.2
.09
19.8
.78
3.6
.14
[2.8] [0.5]
.11 X .02 (2)
18.5
.73
LED WIRES
RED:
(+) COLOR 1
(-) COLOR 2
BLACK:
(-) COLOR 1
(+) COLOR 2
RECOMMENDED PANEL CUT-OUT
16.10
16.05
.634
.632
FLATS FOR
ILLUMINATED
POWER/STANDBY
VERSION ONLY.
P
USHBUTTON
S
WITCHES
MECHANICAL CHARACTERISTICS
CIRCUIT:
SPST-NO-DB (FORM X)
BUTTON TRAVEL (NOM):
[2.3] .09
OPERATING FORCE (NOM):
[3N] 306g
CONTACT BOUNCE (NOM):
1 ms
PANEL THICKNESS:
[0.0 to 6.0] .00 to .24
NUT TORQUE (MAX):
[11.5 kgf/cm] 10 lb/in
HARDWARE:
14.90
14.82
.587
.584
1.3
.05
112
4.4
M16 X 1-6g BRITISH
ISO METRIC THREAD
SOLDER TERMINALS
2.3
.09
3.5
.14
[1.0] [0.5]
.04 X .02 (2)
5.59±0.08
.220±.003
C
L
2.92 ±0.08
.115 ±.003
0.89 ±0.08
.035 ±.003 (2)
LED
1.27±0.08
.050±.003 (2)
SWITCH
BULK PACKAGED SEALING
WASHER AND HEX NUT ARE
INCLUDED.
ENVIRONMENTAL SPECIFICATIONS
ACTUATOR INGRESS
PROTECTION:
IP67
OPERATING TEMPERATURE:
NON-LIT: [-40 C to +85 C]
-40 F to +185 F
ILLUMINATED: [-25 C to +85 C]
-13 F to +185 F
ELECTRICAL SPECIFICATIONS
CURRENT RATING (resistive):
250mA @ 12VDC, 100K CYCLES
150mA @ 28VDC, 150K CYCLES
(MOMENTARY)
100mA @ 48VDC, 100K CYCLES
10mA @ 12VDC, 1 MILLION CYCLES
(MOMENTARY)
C
L
PC TERMINALS
2.54 ±0.08
.100 ±.003
RECOMMENDED PCB HOLE PATTERN
(WITH LED WIRES CLIPPED OFF)
25.7
1.01
9.9
.39
10.5
.41
500
19.7
POTTED SLEEVE
WIRE LEADS OPTION
PVC COVER ON VERSIONS WITH
5V, 12V, OR 24V RESISTORS
12.4
.49
BUTTON
3.3
.13
LIGHT PIPE
20.0
.79 HEX
ILLUMINATED
RING
HOUSING
FLAT
CENTER SPOT ILLUMINATION
10.9
.43
METAL PAD
RING ILLUMINATION
ILLUMINATED
POWER/STANDBY SYMBOL
Copyright © 2013 ITW Switches 3/13
[MILLIMETERS]
INCHES
DIELECTRIC STRENGTH:
1,000 VAC
INSULATION RESISTANCE:
1G OHM
CONTACT RESISTANCE:
50m OHMS
WIRE LEADS:
UL STYLE 1007
26 AWG, STRANDED
Designs and specifications are subject to change
without notice due to product improvement.
29
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