Data Sheet no. 49-59500
SERIES 49-59 – SEALED PUSHBUTTON RANGE
FEATURES
•
Fully sealed version to IP67
•
LED status illumination (FL)
•
10A version panel sealed
to IP67
•
Wide temperature range:
Up to +105°C
•
Industrial standard ø16mm
panel cut out
•
Flame retardant UL rated
material
NON-STANDARD OPTIONS
•
Custom colours
•
Choice of terminations
•
Gold contacts on microswitch
version
•
Snap-in version of both flying
lead and microswitch variants
Technical Information
Series 49-59
ITW Switches’ 49-59 Series is a range of momentary action pushbutton switches which fit a
ø16mm panel cut out. The range consists of a fully sealed IP67 version with insulated flying
leads (500mm length) along with a panel sealed IP67 version which is terminated by a series
16 microswitch.
Held in position by a snap fit retaining mechanism, the microswitch has a maximum current
rating of 10A and the advantage of SPDT-DB contacts to cover all circuit requirements. Being
double break, the contacts also provide reliable switching of DC loads.
The Series is available with a choice of round, round with status illumination (flying leads only)
or square bezels and with 6 button colour variants. The body and button are made from PBT, a
hard wearing thermoplastic polyester that is suitable for surface or sublimation printing or
engraving.
Mechanical
Travel (nom)
Life (min)
Operating force
Panel thickness
2,3mm
1,000,000 cycles
3N (FL)
3.8 – 5.5N (MS)
8mm max (FL)
2,5mm max (MS w/o washer)
1,5mm max (MS with washer)
Electrical
Dielectric strength
Insulation resistance
Contact resistance
Current rating
1000V a.c. for 1 min
1GΩ @ 500V d.c.
150mΩ max initial inc leads (FL)
25mΩ max initial (MS)
400mA @ 32V a.c. res (FL)
100mA @ 50V d.c. res (FL)
125mA @ 125V a.c. res (FL)
10A @ 250V a.c. res (MS)
500,000 cycles (FL)
50,000 cycles @ 70°C (MS)
Life
Electrical – LED
Typical fwd voltage (Vf at I operating)
Max fwd voltage (Vf at I operating)
Forward current (I operating)
Meantime between failures
Luminous intensity (lv at lopr)
Luminous intensity (lv at lopr)
2,2V
3,0V
20mA
100,000 hours
Red LED – 100mcd
Green LED – 160mcd
Environmental & Physical
Ingress protection
Vibration
Non-illuminated
Operating temperature range
Illuminated
Operating temperature range
Body material
Button material
Contacts
Terminals
IP67
DEF STD 07-55
-55°C to +105°C
-35°C to +85°C
PBT
PBT
Gold plated palladium nickel (FL)
Silver (MS)
Tin plated brass (MS)
BS2011 Part 2:1
320°C max for 3s
Key
FL
Version with flying leads
MS
High current microswitch
terminated version
Salt mist
Soldering information
Ordering Information
Button Style
Round bezel
Square bezel
Round bezel – Illuminated
1
2
3
49-59 –
Termination/Body Style
500mm leads
16-439088 (Non-illuminated only)
1
2
Button Colour
Black
Red
Green
White
Yellow
Blue
1
2
3
4
5
6
(Illuminated version only available with Black, Red
& Green as standard. Non-standard colours
subject to MOQ’s)
LED Colour
Red
Green
(This digit is only required for illuminated
switches)
R
G
Mounting Information
The Series 49-59 fits neatly into a ø16mm cut out panel no more than 8mm thick for the flying
lead version and no more than 1,5mm thick for the microswitch version (with sealing washer).
The switch body is fitted from the front of the panel and is locked down with an M16 nut using
a 20mm spanner. Panel sealing is achieved by the use of a sealing washer which is placed
behind the head of the bezel. To attain the correct sealing, the nut should be tightened to a
recommended torque of between 1Nm and 1,5Nm not exceeding 2Nm. Whilst the flying lead
version is now mounted, the microswitch still requires careful ‘snapping’ into its holder from
behind the panel.
Each flying lead switch is supplied with 500mm 24AWG 7/32 leads which are PVC insulated
and have plain unstripped ends.
The microswitch version has 2.8mm QC terminals which also provide the option to solder.
Double ‘D’ flats are provided to prevent rotation of the switch in the panel.
Ingress Protection Rating Key
For flying lead version
For microswitch version
Data Sheet no. 49-59500
SERIES 49-59
Sealed Pushbutton Range
Technical Information
Product Drawings
All dimensions in Millimetres
NC
NO
FORM X
Circuit for flying lead version
NC
NO
FORM Z
NO
NO
Circuit for microswitch version
Application References
• Communications
• Instrumentation
• Data processing
• Military environments
• Environmentally demanding keypads
• Mass transport controls
• Dry circuit switching
Further Information
For further information on our complete range of switch products, visit our website –
www.itwswitchcon.com or contact our Sales Office.
ITW Switches, Division of ITW Limited, Norway Road, Hilsea, Portsmouth PO3 5HT, UK
Tel: +44 (0)2392 694971 Fax: +44 (0)2392 666352 Website: www.itwswitchcon.com
Due to our policy of continuous product development, ITW Switches retain the right to change the specification at any time without prior notice.
Designed & printed in the UK.
无线连接
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
