A3005
Photohelic Pressure Switch And Gauge
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0 To 5 in. w.c. Range, 120 VAC, 50 To 60 Hz, 240 And 24 VAC Power Optional, 2 Form C Relays, Includes Screw Terminals.
Features
Clear Polycarbonate Plastic
Glass Epoxy Printed Circuit Boards For Durability And Permanence
Load Relays Are DPDT With Latching Feature For Maximum Application Versatility
Switch Set Pointers Show Switch Settings At All Times
Spring Loaded Friction Clutch Prevents Operator Damage Of Set Point Mechanism
Gauge Pointer And Light Shutter Are Mounted On Helix And Balancing Counterweight
Shutter Passes Through Slot In Optical Limit Switch To Expose Phototransistors To Integral Infrared Light Source Or Mask Them Depending On Applied Pressure
Light Shield Effectively Protects Phototransistors From Strong Outside Light Sources Yet Allows Free Pointer Movement
Optical Limit Switches Are Used For Reliability And Long Service Life
Semi-Flexible Drive Shaft Connects To Set Point Knobs
Zero Adjustment Screw Connects To Screw In Cover To Adjust Zero Pressure Reading
Plastic Enclosure Protects Electronic Components And Electrical Connections
Polycarbonate Connection Or Terminal Board Is Self-Extinguishing