Honeywell 3AC49 Snap Action Switch - Equivalent & Substitute Parts

Part Overview

The Honeywell 3AC49 is a snap action switch with Single Pole Double Throw (SPDT) circuit configuration, rated for 15A at 125V AC and 500mA at 125V DC. The switch features a push-pull plunger actuator and chassis mount termination with screw terminals. The 3AC49 is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and component procurement.

Substiute Parts

3AC49

Honeywell Sensing and Productivity SolutionsIn Stock: 12023AC49 Datasheet

Current PartRFQ

3AC6

Honeywell Sensing and Productivity SolutionsIn Stock: 16203AC6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete Honeywell 3AC49 is based on strict electrical and mechanical parameter matching within the AC series snap action switch family. The substitute part must satisfy all of the following criteria:

Critical Substitution Parameters:

• Circuit configuration: SPDT (Single Pole Double Throw)
• Switch function: On-Mom (On-Momentary)
• Current rating: 15A AC / 500mA DC minimum
• Voltage rating: 125V AC and 125V DC minimum
• Actuator type: Push-Pull Plunger
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Operating force: 1814gf
• Operating position: 0.203" (5.2mm)
• Overtravel: 0.125" (3.2mm)
• RoHS compliance: Required
• Manufacturer: Honeywell Sensing and Productivity Solutions

The Honeywell 3AC6 meets all specified electrical and mechanical parameters and is classified as an active product, making it a direct functional equivalent for the obsolete 3AC49.

Parameter Comparison

Engineering Selection Recommendations

The Honeywell 3AC6 is the direct equivalent substitute for the obsolete 3AC49. Both parts are manufactured by Honeywell Sensing and Productivity Solutions and belong to the AC series snap action switch family. All electrical parameters, mechanical dimensions, and functional characteristics are identical.

Selection Basis:

The 3AC6 is classified as an active product with current manufacturing status and full inventory availability (1583 pcs in stock), whereas the 3AC49 is obsolete. The 3AC6 maintains complete parameter parity with the 3AC49 across all critical specifications: SPDT circuit, 15A AC / 500mA DC current rating, 125V AC/DC voltage rating, push-pull plunger actuator, chassis mount configuration, and screw terminal termination.

Both parts carry RoHS compliance certification and identical ECCN and HTSUS classifications, confirming regulatory and trade compliance equivalence. The 3AC6 additionally provides an operating temperature range specification of -18°C to 149°C, which was not documented for the 3AC49.

For applications requiring the 3AC49, the 3AC6 provides a direct functional replacement without modification to circuit design, mechanical mounting, or electrical interface requirements.

Frequently Asked Questions (FAQ)

Q: Can the 3AC6 directly replace the 3AC49 without any modifications?

A: Yes. The 3AC6 is a direct functional equivalent. All electrical ratings, mechanical dimensions, actuator characteristics, and termination methods are identical. No circuit modifications or mechanical adaptations are required.

Q: What is the primary reason for substituting the 3AC49?

A: The 3AC49 is classified as obsolete. The 3AC6 is an active product from the same manufacturer and series, ensuring continued availability and supply chain reliability.

Q: Are there any differences in the electrical performance between the 3AC49 and 3AC6?

A: No. Both parts have identical current ratings (15A AC / 500mA DC), voltage ratings (125V AC/DC), circuit configuration (SPDT), and switch function (On-Mom).

Q: Do both parts have the same mechanical specifications?

A: Yes. Operating force (1814gf), operating position (0.203" / 5.2mm), and overtravel (0.125" / 3.2mm) are identical for both parts.

Q: What is the difference in packaging between the 3AC49 and 3AC6?

A: The 3AC49 packaging specification was not provided. The 3AC6 is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the 3AC49 and 3AC6 are RoHS compliant and carry identical ECCN (EAR99) and HTSUS (8536.50.9040) classifications.

Q: Does the 3AC6 have any additional specifications compared to the 3AC49?

A: The 3AC6 provides an operating temperature range specification of -18°C to 149°C. This specification was not documented for the obsolete 3AC49 but does not indicate any functional difference between the parts.

Q: What is the current inventory status for the 3AC6?

A: The 3AC6 has 1583 pcs of new original stock currently available, ensuring supply availability for replacement applications.