M E T A L
SNAP ACTION
CUSTOM ASSEMBLIES
Series 48
M
PUSH BUTTON
SEALED
ROCKER
I N D I C AT O R
SLIDE
VA N D A L R E S I S TA N T
I L L U M I N AT E D
ACTIVE TOUCH
Flex-Tech Panel Sealed
Metal Pushbutton Switches
Built on the proven series 48 platform, these rugged switches come in stainless
steel housings, electro-mechanical with either momentary or maintained action
and illuminated or non-illuminated versions. The variety of options in this compact
package size make the 48M ideal for many applications: outdoor controls, security
packages, food processing and medical products.
Key Features
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Typical Applications
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Momentary or maintained action
Stainless Steel housing
Centre spot or ring illumination
Choice of LED colours
Electro-mechanical
Panel sealed to IP67
ROHS compliant
Gold plated contacts and terminals
Outdoor controls
Kiosks
Security equipment
Medical equipment
Food processing equipment
Military equipment
Industrial machinery
Mass transportation
Standards / Agency / Ratings
Patent # 6,965,085
Series 48
M
Flex-Tech
Panel Sealed
Metal
Pushbutton
Mechanical/Electrical
Characteristics:
Circuit
SPST-NO-DB
Button travel (nominal)
2.3mm
Life (mechanical):
500,000 cycles max (momentary)
100,000 cycles max (maintained)
Operating force (nominal)
3N/306g
Contact bounce (nominal)
1 ms
Panel thickness
1.3 -3.8mm
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Temperature (operating)
-40°C to +85°C
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Ø16.49
2.8 (2)
Ø21.70
Housing
Button
22.06
3.45
5.59
+ -
G
O
Ø3.5
22.26
3.04
Ground
Terminal
O
G
Output
Terminal
Negative (-)
Lamp
Terminal
-
+
0.51 (2)
Centre Spot
Illumination
Button
3.45
5.59
0.51 (2)
Positive (+)
Lamp Terminal
Input Terminal
Ø17.30
Ø13.5
22.03
20.27
LED
Terminals
22.1 Hex Ref
Illuminated
Power Symbol
Ring Illumination
Metal Button
Switch
Terminals
Ring
Illumination
Button
Sealed Nut
M19 x 1-6g Thread
Hex Nut
Ø13.5
Ø17.3
Panel mounting and construction information
The series 48M mounts easily into panels of minimum 1.3 mm and maximum 3.8 mm thickness. Front panel sealing to IP67 is
achieved by a sealing o-ring fitted to the body of the switch before it is inserted into the panel hole cut-out. It is held onto the
panel by means of a brass hex nut tightened down to a torque of 1-2 Newton Metre to achieve the correct sealing pressure
.
Torque (max) (Fixing Nut)
1-2 Newton Metre
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Electro-mechanical
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Current ratings
Ordering Information
Switch
Function
1.
Mechanical, Momentary, Solder terminal
2.
Mechanical, Maintained, Solder terminal
9.
Special, Following digits are in serial order
Housing
Material
1.
Stainless Steel
Illumination
0.
Non-illuminated
1.
Centre spot illumination
2.
Ring Illumination
LED Colour
N.
None
G.
Green LED
R.
Green LED
A.
Amber LED
B.
Blue LED
W.
White LED
10mA, 12 VDC Res.*
Dielectric strength
1,000 VAC
Insulation resistance
1G OHM
Contact resistance
50m OHMS max (initial)
*Current limiting resistor is required
to limit LED forward current to 20 mA
(not included)
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48M-
ITW Switches Limited
Norway Road, Portsmouth, Hampshire PO3 5HT United Kingdom
Tel: 023 9265 6200 Fax: 023 9266 6352
Email: info@itwswitches.co.uk
www.itwswitches.co.uk
DBD/3M/2.08
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