BZ-2RW881T Equivalent & Substitute Parts

Part Overview

The BZ-2RW881T is a snap action SPDT (Single Pole Double Throw) switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis-mounted switch is rated for 15A AC at 125V and features a straight lever actuator with screw terminal connections. The product is classified as obsolete, making identification of compatible substitute components essential for ongoing maintenance, repair, and new design applications where equivalent functionality is required.

Substiute Parts

BZ-2RW881T

Honeywell Sensing and Productivity SolutionsIn Stock: 1185BZ-2RW881T Datasheet

Current PartRFQ

Z-15GW55-B

Omron Automation and SafetyIn Stock: 737Z-15GW55-B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZ-2RW881T is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPDT
• Switch function must be On-Momentary
• AC current rating must be minimum 15A
• AC voltage rating must be minimum 125V
• Actuator type must be lever with straight configuration
• Mounting type must be chassis mount
• Termination must be screw terminal

Secondary Compatibility Factors:

• Operating force within acceptable range (99gf baseline)
• Operating position tolerance within mechanical constraints
• Operating temperature range must encompass application requirements
• Mechanical life cycle rating must meet or exceed application demands

The Z-15GW55-B from Omron Automation and Safety meets the primary compatibility criteria for AC applications at the specified voltage and current ratings. Both parts share identical circuit configuration, switch function, actuator type, mounting method, and termination style.

Parameter Comparison

Engineering Selection Recommendations

For AC Applications at 125V, 15A:

The Z-15GW55-B is a functional substitute for the obsolete BZ-2RW881T in AC applications. Both components are RoHS compliant and share identical electrical ratings for AC operation. The Z-15GW55-B is currently in active production status, ensuring availability for new designs and replacement applications.

Application-Specific Considerations:

Applications requiring operation below -15°C or above 80°C must retain the BZ-2RW881T or identify alternative components, as the Z-15GW55-B operating temperature range is more limited. Applications demanding mechanical life cycles exceeding 10,000,000 cycles should evaluate the BZ-2RW881T specifications, though the Z-15GW55-B provides 10,000,000 cycle rating.

DC Applications:

The BZ-2RW881T is rated for 500mA DC at 125V. The Z-15GW55-B is rated for 6A DC at 30V. These DC specifications are not equivalent. DC applications must use the original BZ-2RW881T or identify alternative components specifically rated for the required DC voltage and current.

Compliance and Certifications:

Both components carry EAR99 ECCN classification and HTSUS code 8536.50.9040. The Z-15GW55-B includes REACH Affected status. Both components have MSL rating of 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q: Can the Z-15GW55-B replace the BZ-2RW881T in all applications?

A: The Z-15GW55-B is suitable for AC applications at 125V, 15A. DC applications cannot use this substitute, as the DC ratings differ significantly. Applications operating below -15°C or above 80°C require evaluation against the Z-15GW55-B temperature limits.

Q: What is the primary reason for substitution?

A: The BZ-2RW881T is classified as obsolete. The Z-15GW55-B is an active product from Omron Automation and Safety, ensuring continued availability and supply chain reliability.

Q: Are the mechanical characteristics identical?

A: Operating force and position are functionally equivalent. The Z-15GW55-B exhibits greater differential travel (0.080" vs 0.040") and overtravel (0.219" vs 0.172"). These differences are within acceptable mechanical tolerance for standard chassis-mounted snap action switch applications.

Q: What packaging differences exist?

A: The BZ-2RW881T is supplied in standard packaging. The Z-15GW55-B is supplied in bulk packaging. Packaging format does not affect electrical or mechanical performance.

Q: Are both components RoHS compliant?

A: Yes. The BZ-2RW881T is RoHS Compliant. The Z-15GW55-B is ROHS3 Compliant. Both meet current RoHS requirements.

Q: What is the mechanical life difference?

A: The BZ-2RW881T is rated for 20,000,000 cycles. The Z-15GW55-B is rated for 10,000,000 cycles. Applications requiring cycles exceeding 10,000,000 must evaluate this specification against actual duty cycle requirements.

Q: Can the Z-15GW55-B be used in DC circuits?

A: No. The Z-15GW55-B DC rating is 6A at 30V. The BZ-2RW881T DC rating is 500mA at 125V. These specifications are not interchangeable. DC applications must use components specifically rated for the required DC voltage and current.