BZ-2R-P1 Equivalent & Substitute Parts Reference

Part Overview

The Honeywell BZ-2R-P1 is a snap action SPDT switch with 15A AC and 500mA DC current rating at 125V, featuring a round pin plunger actuator and chassis mount configuration with screw terminal termination. This component is classified as obsolete, necessitating identification of equivalent alternatives for ongoing applications and new designs. Substitute parts must maintain functional compatibility across electrical ratings, mechanical characteristics, and environmental operating parameters.

Substiute Parts

BZ-2R-P1

Honeywell Sensing and Productivity SolutionsIn Stock: 706BZ-2R-P1 Datasheet

Current PartRFQ

GPTCNC11

ZF ElectronicsIn Stock: 740GPTCNC11 Datasheet

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TZ-1G

Omron Automation and SafetyIn Stock: 1058TZ-1G Datasheet

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Z-01HD55-B

Omron Automation and SafetyIn Stock: 1035Z-01HD55-B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZ-2R-P1 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (SPDT required)
• Switch function (On-Momentary operation)
• Actuator type (Round pin plunger)
• Termination style (Screw terminal)
• Voltage rating (125V AC minimum)

Secondary Compatibility Considerations:

• Current rating capacity (must support application requirements)
• Mounting configuration (chassis mount preferred for direct replacement)
• Operating temperature range (must encompass application environment)
• Mechanical life rating (20,000,000 cycles baseline)

The substitute parts listed below satisfy the primary compatibility criteria with varying degrees of secondary parameter alignment. Selection depends on specific application current and temperature requirements.

Parameter Comparison

Engineering Selection Recommendations

GPTCNC11 (ZF Electronics): Suitable for applications requiring 15A AC current at 125V with identical mechanical life rating. Maintains active product status and ROHS3 compliance. Primary limitation is panel mount configuration versus chassis mount on the original part, requiring mechanical redesign. Operating temperature range is narrower (-55°C to 85°C versus 0°C to 55°C), restricting use in low-temperature environments below 0°C.

TZ-1G (Omron Automation and Safety): Appropriate for low-current applications (1A AC/DC maximum). Maintains chassis mount configuration and identical operating position. Active product status with ROHS3 compliance. Mechanical life is significantly reduced (100,000 cycles versus 20,000,000 cycles). Current rating is insufficient for applications exceeding 1A AC. Operating temperature range extends to -65°C, providing superior low-temperature performance.

Z-01HD55-B (Omron Automation and Safety): Suitable for very low-current applications (100mA AC/DC maximum). Maintains chassis mount configuration and active product status with RoHS compliance. Mechanical life matches the original specification (20,000,000 cycles). Current rating is insufficient for applications exceeding 100mA. Ingress protection rating of IP62 provides enhanced environmental sealing compared to the original part.

Frequently Asked Questions (FAQ)

Q: Can GPTCNC11 directly replace BZ-2R-P1 in existing designs?

A: GPTCNC11 provides electrical equivalence for 15A AC applications at 125V with identical mechanical life. However, panel mount configuration differs from the chassis mount original, requiring mechanical redesign of mounting hardware and enclosure interfaces. Electrical connections remain compatible via screw terminal termination.

Q: What is the primary limitation of TZ-1G as a substitute?

A: TZ-1G current rating of 1A AC/DC is substantially lower than the BZ-2R-P1 specification of 15A AC and 500mA DC. This part is suitable only for applications with current requirements not exceeding 1A. Additionally, mechanical life is reduced to 100,000 cycles versus 20,000,000 cycles.

Q: Is Z-01HD55-B suitable for high-current applications?

A: No. Z-01HD55-B maximum current rating is 100mA AC/DC, making it unsuitable for applications requiring 15A AC or 500mA DC operation. This part is limited to very low-current signal switching applications.

Q: How do operating temperature ranges affect substitution decisions?

A: BZ-2R-P1 operates from -55°C to 85°C. GPTCNC11 range is 0°C to 55°C, restricting use below 0°C. TZ-1G extends to -65°C for enhanced low-temperature performance. Z-01HD55-B operates -15°C to 80°C. Application environment determines which substitute is acceptable.

Q: Are all substitute parts RoHS compliant?

A: Yes. BZ-2R-P1 is RoHS Compliant. GPTCNC11 and TZ-1G are ROHS3 Compliant. Z-01HD55-B is RoHS Compliant. All parts meet current environmental compliance requirements.

Q: What packaging formats are available for these parts?

A: BZ-2R-P1 is supplied in standard packaging (not specified). GPTCNC11 is available in Bulk packaging. TZ-1G is supplied in Tray packaging. Z-01HD55-B is available in Bulk packaging. Packaging selection affects procurement and handling procedures.

Q: Do all substitute parts use identical termination methods?

A: Yes. BZ-2R-P1, GPTCNC11, TZ-1G, and Z-01HD55-B all utilize screw terminal termination, ensuring electrical connection compatibility without modification to wiring harnesses or PCB layouts.