The Parker PER1MS is a specialized electromechanical component designed for use with Parker Torchology's Ergo series of TIG welding torches. This device functions as a single-pole, momentary-action switch, primarily utilized for remote contactor control—initiating and terminating the welding arc via the power source's remote control circuit. The unit is engineered to integrate seamlessly into the molded recess of Ergo-style handles, ensuring a flush fit that maintains the ergonomic profile of the torch.
Constructed from high-impact polymers, the switch housing is designed to withstand the rigors of industrial environments, offering resistance to thermal cycling and mechanical impact common in welding operations. The internal switching mechanism provides a distinct tactile response, allowing the operator to confirm actuation even when wearing heavy welding gloves. The 'momentary' designation indicates that the circuit remains closed only while pressure is applied to the button, a standard safety and operational feature for 2T (two-touch) welding modes. For 4T (latch) operations supported by the welding machine, this switch provides the necessary signal pulses to cycle through pre-flow, upslope, welding current, downslope, and crater fill stages.
Installation of the PER1MS involves routing the attached control leads through the torch handle and cable assembly to the machine connector. The switch is rated for low-voltage control signals typically found in TIG welding power sources (usually 24V or less). Maintenance personnel and technicians will appreciate the modular design, which facilitates quick replacement without the need to replace the entire torch handle assembly. This component is an essential spare part for maintaining the operational readiness of Parker Ergo TIG torches.
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