LSXP4K-2C Equivalent & Substitute Parts

Part Overview

The LSXP4K-2C is a snap action switch manufactured by Honeywell Sensing and Productivity Solutions, configured as a single-pole double-throw (SPDT) device with chassis mount installation. This switch is rated for 10A AC at 120V and 800mA DC at 115V, featuring a side rotary actuator with adjustable nylon roller. The product is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance and repair applications where original stock is depleted.

Substiute Parts

LSXP4K-2C

Honeywell Sensing and Productivity SolutionsIn Stock: 854LSXP4K-2C Datasheet

Current PartRFQ

LSA3K-2C

Honeywell Sensing and Productivity SolutionsIn Stock: 1017LSA3K-2C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSXP4K-2C is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Circuit configuration: SPDT (DB/DM)
• Switch function: On-Momentary operation
• Current rating: 10A AC minimum, 800mA DC minimum
• Voltage rating: 120V AC minimum, 115V DC minimum

Mechanical Equivalence Criteria:

• Actuator type: Side rotary with adjustable roller
• Mounting configuration: Chassis mount
• Termination: Screw terminal
• Operating temperature range: -12°C to 121°C minimum

Compliance Criteria:

• RoHS compliance status
• Moisture sensitivity level: 1 (Unlimited)

The LSA3K-2C meets all mandatory electrical and mechanical parameters while maintaining identical compliance certifications. Minor variations in pretravel (9° vs. 15°), differential travel (3° vs. 5°), and overtravel (66° vs. 60°) do not disqualify substitution, as these represent normal manufacturing tolerances within the snap action switch product category.

Parameter Comparison

Engineering Selection Recommendations

The LSA3K-2C is a direct functional equivalent for the obsolete LSXP4K-2C based on identical electrical ratings, mechanical configuration, and compliance certifications. The LSA3K-2C carries active product status from Honeywell Sensing and Productivity Solutions, ensuring continued availability and supply chain reliability.

Selection of the LSA3K-2C is supported by:

• Identical SPDT circuit configuration and on-momentary switch function
• Matching current and voltage ratings across AC and DC specifications
• Identical actuator type, mounting configuration, and termination style
• Identical operating temperature range and environmental compliance
• RoHS compliance and unlimited moisture sensitivity rating maintained
• Active product status providing long-term procurement viability

The variations in pretravel, differential travel, and overtravel angles between the two models fall within normal manufacturing tolerances for snap action switches and do not affect functional substitution in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the LSA3K-2C directly replace the LSXP4K-2C in existing installations?

A: Yes. The LSA3K-2C meets all electrical and mechanical specifications of the LSXP4K-2C, including circuit configuration, current and voltage ratings, actuator type, mounting method, and termination style. Screw terminal connections are identical, allowing direct installation without modification.

Q: What is the significance of the pretravel and overtravel differences?

A: Pretravel (9° vs. 15°), differential travel (3° vs. 5°), and overtravel (66° vs. 60°) represent mechanical characteristics of the snap action mechanism. These variations are within normal tolerances for this product category and do not affect the switch's ability to perform its on-momentary function at the specified electrical ratings.

Q: Why is the LSXP4K-2C classified as obsolete?

A: Product obsolescence indicates that the manufacturer has discontinued production. The LSA3K-2C, classified as active, represents the current production equivalent and is the recommended source for new procurement.

Q: Are there packaging differences between these parts?

A: The LSXP4K-2C is supplied with standard packaging, while the LSA3K-2C is supplied in bulk packaging. Both contain identical switch components; packaging format does not affect electrical or mechanical performance.

Q: Do both parts maintain RoHS compliance?

A: Yes. Both the LSXP4K-2C and LSA3K-2C are RoHS compliant with moisture sensitivity level 1 (unlimited), meeting current environmental and regulatory requirements.

Q: What is the operating force specification, and is it identical between parts?

A: Both parts specify an operating force of 46gfm (gram-force millimeters), indicating identical actuation characteristics and user interface feel.