LIMIT SWITCHES Thinswitch ® Limit Switch
Thinswitch Spring Under Dome ®
6.4mm/.250in Max Actuation Height
Rest Button
Ejector Housing Base
4.8mm/.188in Min Actuation Height
38.1mm/1.50in
NORMALLY CLOSED (RED) NORMALLY OPEN (BLACK)
6.4mm/0.25in
25.4mm/1.00in
COMMON (WHITE)
SCHEMATIC DIAGRAM
9.5mm/ 0.38in
50.8mm/ 2.00in
31.8mm/ 1.25in
Two- and three-dimensional part files are available from the DME web site at www.dme.net
54.6mm/ 2.15in
CABLE
DRILL AND TAP #10-24 x 3/8" DP TO ACCEPT #10 BUTTON HEAD SCREWS INCLUDED WITH THINSWITCH ® LIMIT SWITCH
10.0mm/ .394in
4.8mm/0.18in
SPRING
TSW2220 & HT291 MODELS SPECIFICATIONS
RATED CURRENT VS. STEEL TEMPERATURE TSW2220 HT291
ELECTRICAL: 250VAC
AMPS
°F 85
°C
AMPS
°F
°C
5 AMPS RESISTIVE 4 AMPS INDUCTIVE 5 AMPS RESISTIVE 4 AMPS INDUCTIVE
5.0 4.0 3.0 2.0
29.4 49.0 68.3 79.4
5.0 4.5 4.0 3.5
100 155 210 250
37.7 68.3 98.8
120 155 175
28VDC (SEA LEVEL)
121.1
OPERATING TEMPERATURE: TSW2220 STANDARD TEMPERATURE MODEL
NOTE: Please contact DME for high-temperature applications.
175°F MAX (79.4°C MAX)
HT291 HIGH TEMPERATURE MODEL
250°F MAX (121°C MAX)
THINSWITCH LIMIT SWITCH Includes: (1) Thinswitch Limit Switch (1) 4-40 Allen Wrench (for height adjustment) (4) Screws (#10-24 x 1/2" button head) (2) Wire Clamps (.5" x .82" x .5" with .213" mounting hole) (1) Instruction Sheet
SPDT
SWITCHING:
MATERIALS
FIBERGLASS-REINFORCED NYLON
BODY:
STAINLESS STEEL POLYESTER FILM
SPRING:
BACK COVER: WIRE LEADS:
22 GA STRANDED, 3-CONDUCTOR, SHIELDED CABLE, 6 FT. (1.8M) LONG, ENDS STRIPPED AND TINNED
NOTE: Pressure required to activate the switch: 1 oz. min., 5 oz. max.
182
U.S. 800-626-6653 ■ Canada 800-387-6600 ■ Mexico 52-442-713-5666 ■ dme.net ■ store.dme.net.
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