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CPI

CPI is a manufacturer of electromechanical switches and control components. The brand's product line includes miniature push buttons, environmentally sealed rocker switches, and snap-action limit switches in stem-mount, roller-lever, and hinge-lever configurations. These components are used in industrial equipment for operator input, position sensing, and end-of-travel detection. CPI switches are specified by plant engineers and maintenance managers for applications where reliable electrical switching is required in environments that may expose components to moisture, dust, or mechanical wear. The D1 series miniature push buttons feature a 12 mm mounting hole and SPST contact configuration, with momentary action and a non-metallic actuator. The K1 series environmentally sealed rocker switches provide SPST On/Off functionality with two positions and are designed for protection against moisture and dust. The J4 series stem-mount plunger limit switches have a metallic body, momentary action, and roller plunger actuators with a 0.31 in roller diameter; some models specify a maximum operating force of 48 ozf. Snap-action limit switches in the CPI range include SPDT contacts rated 5 A at 120 V AC, with flying leads for electrical connection. These switches are available in roller-lever and hinge-lever styles, with various actuator configurations to suit different mechanical interfaces. 3G Electric supplies CPI switches as part of its industrial equipment portfolio. The product range includes miniature push buttons, sealed rocker switches, and snap-action limit switches. 3G Electric maintains inventory of these components and provides technical specifications, manufacturer part numbers, and datasheets to support selection and procurement. The company serves a global customer base, shipping to industrial facilities, OEMs, and maintenance operations worldwide. For technical buyers, CPI switches offer defined electrical ratings, mechanical specifications, and mounting dimensions. The snap-action limit switches are rated for 5 A at 120 V AC, suitable for control circuits and position sensing. The miniature push buttons are available in momentary action with SPST contacts, and the sealed rocker switches provide SPST On/Off switching with environmental sealing. These specifications allow engineers to match switch performance to application requirements. 3G Electric's catalog includes CPI part numbers such as D1021-540, K1005-509, E1092-555, E1264-503, E1134-505, E1117-553, J4002-518, and J4401-517. Each listing includes key attributes such as action, contact configuration, electrical connection, and actuator type. This information supports cross-referencing and replacement of existing switches. The CPI line is part of 3G Electric's broader offering of industrial burners, pumps, gas controls, and related equipment. By stocking CPI switches, 3G Electric provides a single source for both primary process equipment and the control components that support it. This can simplify procurement for maintenance and operations teams managing multiple systems. For applications requiring sealed switching, the K1 series rocker switches offer protection against moisture and dust. For position sensing, the J4 series stem-mount plunger limit switches and the E-series snap-action switches provide options with different actuator types and mounting styles. The miniature push buttons in the D1 series are suited for panel-mount operator interfaces where a compact, momentary-action switch is needed. 3G Electric provides access to CPI switches with full manufacturer part numbers and specifications, enabling accurate selection and ordering. The company's global shipping capabilities support customers regardless of location, and its technical team can assist with product inquiries and cross-referencing. This combination of product availability and technical support helps plant engineers and procurement specialists specify the right CPI switch for their application.

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About CPI

CPI is a manufacturer of electromechanical switches and control components. The brand's product line includes miniature push buttons, environmentally sealed rocker switches, and snap-action limit switches in stem-mount, roller-lever, and hinge-lever configurations. These components are used in industrial equipment for operator input, position sensing, and end-of-travel detection. CPI switches are specified by plant engineers and maintenance managers for applications where reliable electrical switching is required in environments that may expose components to moisture, dust, or mechanical wear. The D1 series miniature push buttons feature a 12 mm mounting hole and SPST contact configuration, with momentary action and a non-metallic actuator. The K1 series environmentally sealed rocker switches provide SPST On/Off functionality with two positions and are designed for protection against moisture and dust. The J4 series stem-mount plunger limit switches have a metallic body, momentary action, and roller plunger actuators with a 0.31 in roller diameter; some models specify a maximum operating force of 48 ozf. Snap-action limit switches in the CPI range include SPDT contacts rated 5 A at 120 V AC, with flying leads for electrical connection. These switches are available in roller-lever and hinge-lever styles, with various actuator configurations to suit different mechanical interfaces. 3G Electric supplies CPI switches as part of its industrial equipment portfolio. The product range includes miniature push buttons, sealed rocker switches, and snap-action limit switches. 3G Electric maintains inventory of these components and provides technical specifications, manufacturer part numbers, and datasheets to support selection and procurement. The company serves a global customer base, shipping to industrial facilities, OEMs, and maintenance operations worldwide. For technical buyers, CPI switches offer defined electrical ratings, mechanical specifications, and mounting dimensions. The snap-action limit switches are rated for 5 A at 120 V AC, suitable for control circuits and position sensing. The miniature push buttons are available in momentary action with SPST contacts, and the sealed rocker switches provide SPST On/Off switching with environmental sealing. These specifications allow engineers to match switch performance to application requirements. 3G Electric's catalog includes CPI part numbers such as D1021-540, K1005-509, E1092-555, E1264-503, E1134-505, E1117-553, J4002-518, and J4401-517. Each listing includes key attributes such as action, contact configuration, electrical connection, and actuator type. This information supports cross-referencing and replacement of existing switches. The CPI line is part of 3G Electric's broader offering of industrial burners, pumps, gas controls, and related equipment. By stocking CPI switches, 3G Electric provides a single source for both primary process equipment and the control components that support it. This can simplify procurement for maintenance and operations teams managing multiple systems. For applications requiring sealed switching, the K1 series rocker switches offer protection against moisture and dust. For position sensing, the J4 series stem-mount plunger limit switches and the E-series snap-action switches provide options with different actuator types and mounting styles. The miniature push buttons in the D1 series are suited for panel-mount operator interfaces where a compact, momentary-action switch is needed. 3G Electric provides access to CPI switches with full manufacturer part numbers and specifications, enabling accurate selection and ordering. The company's global shipping capabilities support customers regardless of location, and its technical team can assist with product inquiries and cross-referencing. This combination of product availability and technical support helps plant engineers and procurement specialists specify the right CPI switch for their application.

Common Applications

  • Industrial automation — CPI E-series roller-lever snap-action switches for end-of-travel detection on conveyor systems.
  • Marine and outdoor equipment — CPI K1 series environmentally sealed rocker switches for control panels exposed to moisture and dust.
  • Control panels — CPI D1 series miniature push buttons with 12 mm mounting hole for operator input in compact enclosures.
  • Material handling — CPI J4 series stem-mount plunger limit switches for position sensing on lifts and gates.
  • Packaging machinery — CPI hinge-lever snap-action switches for detecting product presence and machine timing.
  • Food and beverage processing — CPI sealed rocker switches for washdown-adjacent control stations where moisture protection is required.

Frequently asked questions

Common questions about CPI from 3G Electric.

What are the electrical ratings for CPI snap-action limit switches?

CPI snap-action limit switches, such as the E-series models, are rated for 5 A at 120 V AC with SPDT contacts. This rating applies to the roller-lever and hinge-lever configurations. The switches use flying leads for electrical connection. These ratings are suitable for control circuits and position sensing applications where moderate current switching is required. For specific models, refer to the manufacturer part number and datasheet to confirm the exact rating and contact configuration.

What is the difference between the CPI J4 series and E-series limit switches?

The CPI J4 series consists of stem-mount plunger limit switches with a metallic body and momentary action. They feature roller plunger actuators with a 0.31 in roller diameter, and some models have a maximum operating force of 48 ozf. The E-series includes roller-lever and hinge-lever snap-action switches with SPDT contacts rated 5 A at 120 V AC. Both series use flying leads for electrical connection. The J4 series is typically used for direct plunger actuation, while the E-series offers lever-based actuation for different mechanical interfaces.

Are CPI K1 series rocker switches suitable for washdown environments?

CPI K1 series rocker switches are described as environmentally sealed, designed for protection against moisture and dust. This sealing helps prevent ingress that could affect switch operation in damp or dusty conditions. However, the specific IP rating is not provided in the available specifications. For washdown or high-pressure cleaning applications, verify the sealing performance with the manufacturer's datasheet or contact 3G Electric for detailed technical information. The K1 series provides SPST On/Off functionality with two positions.

What mounting hole size do CPI D1 series miniature push buttons require?

CPI D1 series miniature push buttons, such as part number D1021-540, require a 12 mm diameter mounting hole. They feature a non-metallic actuator with an extended profile and momentary action. The contact configuration is SPST. These push buttons are suitable for panel-mount operator interfaces where a compact, momentary-action switch is needed. The 12 mm mounting hole is a common size for control panels, allowing for straightforward installation and replacement.

Can 3G Electric provide cross-references for CPI switches?

3G Electric supplies CPI switches with manufacturer part numbers and specifications. For cross-referencing, customers can provide the existing part number or key specifications such as action, contact configuration, actuator type, and electrical rating. The 3G Electric technical team can assist in identifying equivalent CPI models or alternatives from the CPI range. This support helps maintenance and procurement teams find suitable replacements without extensive research. Contact 3G Electric with your requirements for assistance.

What actuator types are available in CPI snap-action limit switches?

CPI snap-action limit switches are available with roller-lever, hinge-lever, and roller plunger actuators. The E-series includes roller-lever and hinge-lever models, while the J4 series features stem-mount plunger actuators with a roller diameter of 0.31 in. These different actuator types allow engineers to match the switch to the mechanical motion being sensed, whether it is a lever arm, a direct plunger, or a roller contact. Each actuator type has specific operating characteristics, such as operating force and travel, which should be considered during selection.