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The Hypertherm 128639 is an OEM safety-interlock cap sensor switch replacement kit for Powermax plasma systems. It functions as a parts-in-place safety loop component that detects the presence and proper installation of the torch retaining cap. The switch is designed to break the electrical circuit if the cap is loosened or removed, preventing the power supply from delivering high-voltage DC to the torch head during consumable changes or maintenance. This component ensures that the arc cannot initiate while internal live parts are exposed.
Features
Genuine OEM replacement component
Safety interlock circuit integration
Retaining cap presence detection
Automatic circuit interruption upon cap removal
High-voltage DC initiation prevention
Mechanical microswitch assembly
Compatible with hand and machine torch variants
Specifications
Manufacturer: Hypertherm Inc
Part Number: 128639
Weight: 0.066 kg
Product Type: Cap-Off Sensor Replacement Kit
Compatible Power Supplies: Powermax600, Powermax800, Powermax900, Powermax1000, Powermax1100, Powermax1250, Powermax1650
