Omron Z-15HW-B Snap Action Switch: Equivalent & Substitute Parts

Part Overview

The Omron Z-15HW-B is an active-status SPDT snap action switch rated for 15A AC at 125V, designed for chassis mount applications with screw terminal connections. This switch is commonly used in industrial control systems, appliances, and safety-critical applications requiring reliable on-momentary switching action. Equivalent and substitute parts may be required due to supply constraints, end-of-life considerations, or specific application requirements that align with alternative electrical and mechanical parameters.

Substiute Parts

Z-15HW-B

Omron Automation and SafetyIn Stock: 953Z-15HW-B Datasheet

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BZ-2RW80-A2

Honeywell Sensing and Productivity SolutionsIn Stock: 4098BZ-2RW80-A2 Datasheet

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BZ-2RW863-A2

Honeywell Sensing and Productivity SolutionsIn Stock: 1149BZ-2RW863-A2 Datasheet

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BZ-RW80X

Honeywell Sensing and Productivity SolutionsIn Stock: 1358BZ-RW80X Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Z-15HW-B is determined by the following critical parameters:

• Circuit Configuration: Must be SPDT (Single Pole Double Throw)
• Current Rating (AC): Must support minimum 15A at 125V AC
• Actuator Type: Must be Lever, Straight configuration
• Mounting Type: Must be Chassis Mount
• Mechanical Life: Must meet or exceed 20,000,000 cycles
• RoHS Compliance: Must be RoHS Compliant
• Product Status: Must be Active

The substitute parts listed below meet these core electrical and mechanical requirements. Variations in DC current rating, operating temperature range, operating force, and termination style are permitted within the scope of equivalent substitution, provided the AC electrical ratings and mechanical specifications remain compatible with the original application.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and RoHS compliance, meeting the core regulatory and availability requirements for industrial applications.

BZ-2RW80-A2: This Honeywell part provides the closest electrical and mechanical alignment with the Z-15HW-B. It maintains identical AC current and voltage ratings, SPDT configuration, on-momentary function, and screw terminal termination. The operating force (71gf) and operating position (19.1mm) are within acceptable tolerance of the original specification. This part is suitable for direct substitution in applications where the DC current requirement does not exceed 500mA.

BZ-2RW863-A2: This Honeywell part meets the core AC electrical requirements and mechanical life specification. However, it exhibits significantly lower operating force (28gf) and greater overtravel (12.7mm) compared to the Z-15HW-B. This part is suitable only for applications where reduced actuation force and increased travel distance are compatible with the mechanical design.

BZ-RW80X: This Honeywell part maintains the required AC electrical ratings and mechanical life. The primary distinction is the switch function (On-On versus On-Mom) and termination style (Solder Lug versus Screw Terminal). This part is suitable only for applications requiring on-on switching action and where solder lug termination can be accommodated in the circuit design.

Frequently Asked Questions (FAQ)

Q: Can BZ-2RW80-A2 be used as a direct replacement for Z-15HW-B?

A: Yes, BZ-2RW80-A2 is suitable for direct substitution in applications operating at 15A AC, 125V. The DC current rating is reduced to 500mA; verify that your application does not require the original 2A DC rating. Screw terminal connections are identical, and mechanical mounting is compatible.

Q: What is the key difference between BZ-2RW863-A2 and the other Honeywell substitutes?

A: BZ-2RW863-A2 has significantly lower operating force (28gf versus 67gf on the original) and greater overtravel (12.7mm versus 5.6mm). This affects the mechanical feel and response characteristics. Use this part only if your application can accommodate these mechanical differences.

Q: Why is BZ-RW80X listed as a substitute if it has different termination?

A: BZ-RW80X meets all core electrical and mechanical requirements but uses solder lug termination instead of screw terminals. It is listed as an equivalent only for applications where solder lug connections are acceptable and the on-on switching function (rather than on-momentary) is compatible with your circuit design.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are RoHS Compliant and maintain active product status, meeting regulatory requirements for industrial and consumer applications.

Q: What should I verify before selecting a substitute part?

A: Confirm that your application requirements align with the electrical ratings (AC current, voltage), switch function (on-momentary versus on-on), termination style (screw terminal versus solder lug), and mechanical characteristics (operating force, overtravel) of the selected substitute. DC current requirements should be evaluated against the reduced 500mA rating of Honeywell parts.