LSXYLB4M Equivalent & Substitute Parts Reference

Part Overview

The LSXYLB4M is a snap action DPDT (double pole double throw) switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis-mounted switch is rated for 10A AC at 120V and 800mA DC at 115V, featuring side rotary actuation without lever and screw terminal connections. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

LSXYLB4M

Honeywell Sensing and Productivity SolutionsIn Stock: 837LSXYLB4M Datasheet

Current PartRFQ

LSL4M

Honeywell Sensing and Productivity SolutionsIn Stock: 763LSL4M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LSXYLB4M is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Circuit configuration must be DPDT (DB/DM)
• Switch function must be On-Mom
• Current rating must support minimum 10A AC and 800mA DC
• Voltage ratings must support minimum 120V AC and 115V DC

Mechanical Equivalence Requirements:

• Actuator type must be Side Rotary - No Lever
• Mounting type must be Chassis Mount
• Termination style must be Screw Terminal
• Operating force must be 46gfm
• Travel specifications (pretravel 15°, differential travel 5°, overtravel 48°) must match

Environmental & Compliance Requirements:

• Operating temperature range must encompass or exceed -40°C ~ 121°C
• RoHS compliance status must be maintained
• Moisture sensitivity level must be 1 (Unlimited)

The LSL4M meets all electrical and mechanical equivalence criteria and is classified as active product status, making it a direct substitute for the obsolete LSXYLB4M.

Parameter Comparison

Engineering Selection Recommendations

The LSL4M is a direct electrical and mechanical equivalent to the LSXYLB4M and is the appropriate substitute for applications requiring DPDT snap action switching at 10A AC / 120V or 800mA DC / 115V with side rotary actuation and chassis mounting.

Selection Basis:

All critical electrical parameters are identical: DPDT circuit configuration, On-Mom function, 10A AC current rating, 800mA DC current rating, 120V AC voltage rating, and 115V DC voltage rating.

All mechanical parameters are identical: side rotary actuator without lever, chassis mount configuration, screw terminal termination, 46gfm operating force, and identical travel specifications (15° pretravel, 5° differential travel, 48° overtravel).

Compliance and environmental specifications are maintained: both parts are RoHS compliant with MSL 1 (Unlimited) moisture sensitivity rating.

The LSL4M is classified as active product status, ensuring ongoing availability and supply chain support compared to the obsolete LSXYLB4M.

Temperature Range Consideration:

The LSL4M operating temperature range (-12°C ~ 121°C) is narrower than the LSXYLB4M (-40°C ~ 121°C) at the low temperature extreme. Applications requiring operation below -12°C must evaluate this specification difference against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the LSL4M be used as a direct replacement for the LSXYLB4M in existing designs?

A: Yes. The LSL4M meets all electrical and mechanical specifications of the LSXYLB4M. Both parts feature identical DPDT circuit configuration, 10A AC / 120V and 800mA DC / 115V ratings, side rotary actuation, chassis mounting, screw terminal termination, and operating force characteristics. Direct substitution is supported for applications operating within the LSL4M temperature range of -12°C to 121°C.

Q: What is the primary difference between these two parts?

A: The LSXYLB4M is classified as obsolete, while the LSL4M is an active product. The LSL4M operating temperature range (-12°C ~ 121°C) does not extend to the lower temperature limit of the LSXYLB4M (-40°C). Applications requiring operation below -12°C must confirm compatibility with system thermal requirements.

Q: Are there any packaging or mounting differences?

A: No. Both parts use identical chassis mount configuration with screw terminal termination. No mechanical modifications or adapter components are required for substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LSXYLB4M and LSL4M are RoHS compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring equivalent environmental and regulatory compliance.

Q: What should be verified before implementing the LSL4M as a substitute?

A: Confirm that the application operating temperature range falls within -12°C to 121°C. If the system requires operation below -12°C, the LSL4M is not suitable. All other electrical, mechanical, and compliance parameters are equivalent and require no additional verification.