BZ-2RW82279-A21 Equivalent & Substitute Parts

Part Overview

The BZ-2RW82279-A21 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis mount switch is rated for 15A at 125V AC and features a lever roller actuator with screw terminal connections. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity for applications requiring SPDT snap action switching functionality.

Substiute Parts

BZ-2RW82279-A21

Honeywell Sensing and Productivity SolutionsIn Stock: 913BZ-2RW82279-A21 Datasheet

Current PartRFQ

GPTCRM01

ZF ElectronicsIn Stock: 1126GPTCRM01 Datasheet

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GPTCRM11

ZF ElectronicsIn Stock: 1005GPTCRM11 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZ-2RW82279-A21 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Mom
• Current rating: 15A AC minimum
• Voltage rating: 125V AC minimum
• Actuator type: Lever, Roller
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Mechanical life: 20,000,000 cycles

The substitute parts GPTCRM01 and GPTCRM11, both manufactured by ZF Electronics, satisfy all primary compatibility criteria. Both parts maintain identical SPDT circuit configuration, On-Mom function, 15A AC current rating, 125V AC voltage rating, lever roller actuator, chassis mount configuration, and screw terminal termination. Both achieve the required 20,000,000 cycle mechanical life specification.

Operational parameter variations exist within acceptable substitution tolerances. The substitute parts exhibit operating force of 158gf compared to 170gf in the main part, and operating position of 1.172" (29.8mm) compared to 1.188" (30.2mm). These variations remain within typical mechanical switch design tolerances and do not affect functional equivalence for standard switching applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The BZ-2RW82279-A21 is classified as obsolete. Both substitute parts GPTCRM01 and GPTCRM11 maintain active product status with ZF Electronics, ensuring ongoing availability and supply chain support.

Compliance and Certification: The main part carries RoHS Compliant certification. Both substitute parts exceed this requirement with ROHS3 Compliant certification, indicating enhanced environmental compliance standards. Both substitute parts maintain MSL 1 (Unlimited) rating, matching the original part specification.

Electrical Equivalence: Both substitute parts maintain identical electrical specifications for AC operation: 15A current rating and 125V voltage rating. The main part specifies 500mA DC rating; substitute parts specify only 15A AC rating without DC specification. For applications requiring DC switching capability, the DC current rating differential must be evaluated against application requirements.

Mechanical Compatibility: Both substitute parts provide equivalent mechanical life (20,000,000 cycles) and identical release force (43gf). Operating force variation (158gf versus 170gf) and operating position variation (1.172" versus 1.188") fall within standard mechanical switch design tolerances. Overtravel specification increases from 0.050" to 0.094" in substitute parts, providing additional mechanical margin.

Temperature Operating Range: The main part operates across -55°C to 85°C. Substitute parts operate across 0°C to 55°C. Applications requiring operation below 0°C or above 55°C cannot use these substitute parts.

Frequently Asked Questions (FAQ)

Q: Can GPTCRM01 and GPTCRM11 be used interchangeably with BZ-2RW82279-A21?

A: Yes, for applications operating within 0°C to 55°C temperature range and not requiring DC switching capability. Both substitute parts maintain identical SPDT circuit configuration, On-Mom function, 15A AC current rating, 125V AC voltage rating, lever roller actuator, chassis mount configuration, and screw terminal termination. Mechanical parameter variations remain within acceptable substitution tolerances.

Q: What is the difference between GPTCRM01 and GPTCRM11?

A: Both parts are manufactured by ZF Electronics with identical electrical and mechanical specifications. No functional differences exist between these two part numbers based on provided parameters.

Q: Why does the main part specify both AC and DC voltage ratings while substitute parts specify only AC?

A: The main part BZ-2RW82279-A21 specifies 125V DC rating with 500mA DC current capability. Substitute parts GPTCRM01 and GPTCRM11 specify only AC ratings. Applications requiring DC switching must evaluate whether the absence of specified DC ratings in substitute parts affects application compatibility.

Q: Are there temperature limitations when substituting these parts?

A: Yes. The main part operates from -55°C to 85°C. Substitute parts operate from 0°C to 55°C. Applications requiring operation below 0°C or above 55°C cannot use GPTCRM01 or GPTCRM11 as substitutes.

Q: Do the substitute parts meet the same environmental compliance standards?

A: The substitute parts exceed the original specification. The main part is RoHS Compliant; substitute parts are ROHS3 Compliant, representing enhanced environmental standards. Both maintain MSL 1 (Unlimited) rating.

Q: What packaging is available for substitute parts?

A: Both GPTCRM01 and GPTCRM11 are supplied in bulk packaging, compared to the original part specification which does not specify packaging type.