BZ-2RQ9-A2 Equivalent & Substitute Parts Reference

Part Overview

The BZ-2RQ9-A2 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for panel mount applications with 15A AC and 500mA DC current capacity at 125V. This component features a roller plunger actuator and screw terminal termination, suitable for on-momentary switching functions.

The BZ-2RQ9-A2 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this switch architecture.

Substiute Parts

BZ-2RQ9-A2

Honeywell Sensing and Productivity SolutionsIn Stock: 749BZ-2RQ9-A2 Datasheet

Current PartRFQ

GPTCRH11

ZF ElectronicsIn Stock: 800GPTCRH11 Datasheet

SimilarRFQ

Z-15HQ22-B

Omron Automation and SafetyIn Stock: 1218Z-15HQ22-B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZ-2RQ9-A2 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Momentary
• Current rating: Minimum 15A AC capability
• Voltage rating: Minimum 125V AC
• Actuator type: Roller Plunger
• Mounting type: Panel Mount
• Termination style: Screw Terminal

Secondary Compatibility Considerations:

• Mechanical life: 20,000,000 cycles minimum
• Operating temperature range: Must encompass or overlap with application requirements
• RoHS compliance status: Compliance required for regulated applications

The identified substitute parts GPTCRH11 (ZF Electronics) and Z-15HQ22-B (Omron Automation and Safety) satisfy the primary compatibility criteria. Both parts maintain SPDT circuit configuration, on-momentary function, 15A AC current rating at 125V AC, roller plunger actuation, panel mount configuration, and screw terminal termination. Both achieve 20,000,000 mechanical life cycles and maintain RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

GPTCRH11 (ZF Electronics): This substitute maintains full electrical equivalence for AC applications at 15A and 125V. The part is currently active in production with ROHS3 compliance certification. Operating temperature range (0°C to 55°C) is narrower than the original BZ-2RQ9-A2, requiring verification against application temperature requirements. DC current rating is not specified; applications requiring DC operation should confirm compatibility. Packaging is supplied in bulk format.

Z-15HQ22-B (Omron Automation and Safety): This substitute provides AC electrical equivalence at 15A and 125V with enhanced DC capability (2A at 30V DC). The part is currently active in production with ROHS3 compliance and REACH compliance documentation. Operating temperature range (-25°C to 80°C) provides broader low-temperature coverage than GPTCRH11 but does not extend to the -55°C minimum of the original part. Ingress protection rating IP00 is specified. Electrical life is rated at 500,000 cycles, lower than the 20,000,000 mechanical life specification. Packaging is supplied in bulk format.

Selection Basis:

• Both substitutes are active products with current manufacturer support
• Both maintain SPDT configuration, on-momentary function, and 15A AC at 125V electrical ratings
• Both achieve 20,000,000 mechanical life cycles
• Both comply with RoHS requirements
• Temperature range and DC ratings differ; application requirements determine optimal selection

Frequently Asked Questions (FAQ)

Q: Can GPTCRH11 directly replace BZ-2RQ9-A2 in all applications?

A: GPTCRH11 provides direct substitution for AC applications operating within 0°C to 55°C temperature range at 15A and 125V. Applications requiring operation below 0°C or above 55°C require alternative selection. DC current rating for GPTCRH11 is not specified; applications with DC requirements should confirm compatibility or select Z-15HQ22-B.

Q: What is the primary difference between GPTCRH11 and Z-15HQ22-B?

A: Both parts maintain equivalent AC electrical ratings (15A at 125V). Z-15HQ22-B provides specified DC capability (2A at 30V) while GPTCRH11 does not specify DC ratings. Z-15HQ22-B operates across -25°C to 80°C; GPTCRH11 operates 0°C to 55°C. Z-15HQ22-B includes IP00 ingress protection specification.

Q: Why is the BZ-2RQ9-A2 marked obsolete?

A: Product status reflects manufacturer discontinuation. Active substitute parts GPTCRH11 and Z-15HQ22-B provide equivalent functionality and are currently manufactured and supported.

Q: Are packaging differences significant for substitution?

A: BZ-2RQ9-A2 packaging format is not specified in available data. Both GPTCRH11 and Z-15HQ22-B are supplied in bulk packaging. Verify packaging requirements against procurement specifications.

Q: Does operating temperature range affect substitution suitability?

A: Yes. BZ-2RQ9-A2 operates -55°C to 85°C. GPTCRH11 operates 0°C to 55°C (narrower range). Z-15HQ22-B operates -25°C to 80°C (broader low-temperature coverage but does not reach -55°C). Select substitute based on application temperature requirements.

Q: What compliance certifications apply to substitute parts?

A: GPTCRH11 holds ROHS3 compliance. Z-15HQ22-B holds ROHS3 compliance and REACH compliance documentation. Both parts carry EAR99 ECCN classification and 8536.50.9040 HTSUS code, matching the original part.

Q: Can Z-15HQ22-B be used for DC applications?

A: Z-15HQ22-B specifies 2A DC at 30V maximum. BZ-2RQ9-A2 specifies 500mA DC at 125V. Z-15HQ22-B provides higher DC current capacity but lower DC voltage rating. Application requirements determine suitability.