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Electrical Rating: 15 A resistive / 7.5 A inductive @ 28 VDC; 5 A resistive / 3 A inductive @ 120 VAC
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Electrical Configuration: SPST, maintained action
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Mechanical Life: 100,000 cycles
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Operating Temperature: –65 °F to +165 °F (–54 °C to +74 °C)
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Cover Material: Neoprene (sealed, submersible design)
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Cable Options: 2-wire or 2-conductor cable; optional coil cords and custom terminations available

Maintained Waterproof Switches – Submersible Reliability with Positive Control
CPI’s K1 Series maintained waterproof switches are engineered for manual control applications in the harshest environments. These switches are fully submersible, not merely splashproof or water-resistant, ensuring complete sealing integrity throughout their operational life.
Encased in neoprene rubber, the K1 Series features a maintained SPST configuration with positive tactile feedback. This design guarantees reliable switching performance even under vibration, moisture, or contamination. The switch can be supplied as a stand-alone pendant-style unit or integrated within CPI’s E-Series limit switch brackets and actuators for custom assemblies.
Performance Highlights
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Electrical Rating: 15 A resistive / 7.5 A inductive @ 28 VDC; 5 A resistive / 3 A inductive @ 120 VAC
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Electrical Configuration: SPST, maintained action
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Mechanical Life: 100,000 cycles
-
Operating Temperature: –65 °F to +165 °F (–54 °C to +74 °C)
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Cover Material: Neoprene (sealed, submersible design)
-
Cable Options: 2-wire or 2-conductor cable; optional coil cords and custom terminations available
Typical Applications
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Bilge pump or bilge control switches
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Welder’s torch control
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Laser sighting systems
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Military equipment
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Power ON/OFF control
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Remote pendant controllers
The K1 Series provides a rugged, waterproof control solution with tactile precision and dependable maintained contact. Whether used as an independent pushbutton or integrated actuator, it ensures reliable operation and complete sealing integrity across a wide range of industrial, marine, and military systems.


