Thumb Wheel / Push wheel Switches - Series Tws 80
OVERVIEW
Integral Type TWS-80 Thumb Wheel Switches are high quality switches of small size for use in a wide variety of applications in Instrumentation, Machine Controls, Process Controls, etc.
TWS-80 is a sturdy rear-mounted type fixed with screws to the panel. Available with an extensive range of output codes, up to 10 modules can be easily coupled with sides, to form any combination as per customer's requirements.
The switches have a positive detent action so that the positions snap into place. The switches have large digits hot-stamped for good visibility.
The switches can be ordered either as complete assemblies or individual modules with sides separately.
SPECIFICATIONS
| CONTACT RATING : | Switching 125mA max. Carrying : 1 Amp continuous |
| OPERATING VOLTAGE : | 50mV to 28V DC or 120V AC. |
| CONTACT RESISTANCE : | Less than 150 milli ohms Initial @ 2-6V DC, 100mA. |
| INSULATION RESISTANCE : | 1000 Megohms min. |
| DIELECTRIC STRENGTH : | 1000 VRMS min. @ sea level. |
| OPERATING TEMP : | -25deg C to +70deg C |
| NO. OF POSITIONS : | 8 and 10 (stops available) |
MATERIALS & FINISHES
| BODY, WHEEL AND CAM : | Engineering Thermoplastics (Polycarbonate/ABS/Poly acetal) |
| WIPER CONTACT : | Hard Gold over Nickel on Copper Alloy |
| STATOR CONTACT : | Hard Gold over Nickel over Copper on Glass Epoxy laminated sheet to Nema FR4. |
| HARDWARE : | Steel, Zinc plated |
| DETENT SPRING : | Stainless steel wire |
| SIZE OF CHARACTER ON THE WHEEL : | 8 and 10 positions - 4.5mm (Consult factory for non-standard printing). |
Please Refer the Datasheet for further information.
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