SMARTFLOW® THINSWITCH® Liquid-Resistant Limit Switch

Smartflow Thinswitch Liquid-Resistant Limit Switch is designed to verify ejector plate return in injection molding applications where occasional water or oil spray is present. The Thinswitch helps prevent accidental mold close in injection molding applications by providing a position switch that is tied to the injection molding machine control. The liquid resistant switch uses the same mounting hole locations as the original Thinswitch.

The Thinswitch has been tested for reliability over 10 million cycles without failure. Two switches can be used in series for larger molds to ensure the ejector plate return, preventing costly mold damage.

Part No. TLR Categories: ,

Features and Benefits

  • Over 10 million cycle life
  • 175°F (79.4°C) standard temperature rating
  • 250°F (121°C) high temperature unit for higher temperature needs
  • CE Marked, housing rated IP 41
  • Adjustable actuation between .187″ and .250″ from the mold base.
  • 3/16″ thick design fits snugly behind the ejector plate between the rest buttons
  • Stripped and tinned 6ft. (1.8M) wire leads
  • Mounting screws and wire clips included

Specifications

Electrical

250VAC………………………………………5 Amps Resistive, 4 Amps Inductive
28VDC (sea level)………………………..5 Amps Resistive, 4 Amps Inductive

See chart below for temperature effects on maximum current rating

Rated Current vs. Steel Temperature
T-222 HT-291
Amps °F °C Amps °F °C
5.0 85 29.4 5.0 100 37.7
4.0 120 49.0 4.5 155 68.3
3.0 155 68.3 4.0 210 98.8
2.0 175 79.4 3.5 250 121.1

Switching…………………………………………………….SPDT

Materials

Body………………………….Fiberglass-Reinforced Nylon
Spring……………………………………………Stainless Steel
Back Cover……………………………………..Polyester Film
Wire Leads……………………………………..22ga stranded, 3-conductor, shielded cable 6ft. (1.8m) long ends stripped and tinned

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