BZ-2RN784 Equivalent & Substitute Parts

Part Overview

The BZ-2RN784 is an active-status snap action switch manufactured by Honeywell Sensing and Productivity Solutions. This SPDT (Single Pole Double Throw) panel mount switch is rated for 15A AC at 125V and features a roller plunger actuator with screw terminal connections. The switch is designed for on-momentary operation and is RoHS compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or when design flexibility permits selection from qualified alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

BZ-2RN784

Honeywell Sensing and Productivity SolutionsIn Stock: 947BZ-2RN784 Datasheet

Current PartRFQ

GPTCRH11

ZF ElectronicsIn Stock: 800GPTCRH11 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZ-2RN784 is determined by strict alignment of the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be SPDT
• Switch function must be On-Mom
• AC current rating must be 15A minimum
• AC voltage rating must be 125V minimum
• Screw terminal connection required

Mechanical Compatibility Requirements:

• Actuator type must be roller plunger
• Mounting type must be panel mount
• Mechanical life must be 20,000,000 cycles minimum

Environmental & Compliance Requirements:

• Operating temperature range must encompass the application environment
• RoHS compliance status must be active (RoHS Compliant or ROHS3 Compliant)
• Moisture sensitivity level must be 1 (Unlimited)

The GPTCRH11 manufactured by ZF Electronics meets all critical electrical and mechanical parameters for substitution. However, the operating temperature range differs: GPTCRH11 operates from 0°C to 55°C, which is narrower than the BZ-2RN784 range of -55°C to 85°C. This difference must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

BZ-2RN784 (Honeywell Sensing and Productivity Solutions):

• Primary selection for applications requiring extended temperature operation from -55°C to 85°C
• Specified DC voltage and current ratings (125V DC, 500mA DC) are documented
• RoHS Compliant status confirmed
• Active product status with 933 units in stock
• Suitable for industrial environments with wide temperature extremes

GPTCRH11 (ZF Electronics):

• Qualified substitute for applications operating within 0°C to 55°C temperature range
• ROHS3 Compliant status meets current regulatory requirements
• Active product status with 700 units in stock
• Electrical and mechanical parameters align with BZ-2RN784 for AC operation
• DC voltage and current ratings not specified in available documentation

Selection between these parts must be based on the specific operating temperature requirements of the application. If the application environment remains within 0°C to 55°C, the GPTCRH11 provides a functionally equivalent alternative. For applications requiring operation below 0°C or above 55°C, the BZ-2RN784 is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the GPTCRH11 be used as a direct replacement for the BZ-2RN784 in all applications?

A: The GPTCRH11 is electrically and mechanically compatible for AC operation at 15A and 125V. However, the operating temperature range differs. The GPTCRH11 operates from 0°C to 55°C, while the BZ-2RN784 operates from -55°C to 85°C. Substitution is valid only when the application environment remains within the GPTCRH11 temperature range.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: SPDT circuit configuration, On-Mom switch function, 15A AC current rating, 125V AC voltage rating, roller plunger actuator, panel mount configuration, screw terminal termination, 20,000,000 cycle mechanical life, RoHS compliance, and MSL 1 rating. Operating temperature range must be evaluated separately based on application requirements.

Q: Are there differences in mechanical dimensions between these parts?

A: Yes. The BZ-2RN784 has an operating position of 2.232" (56.7mm) with 0.219" (5.6mm) overtravel. The GPTCRH11 has an operating position of 1.266" (32.2mm) with 0.141" (3.6mm) overtravel. These dimensional differences may affect panel cutout requirements and mechanical integration. Physical verification is necessary during design integration.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: Both designations indicate compliance with RoHS (Restriction of Hazardous Substances) regulations. ROHS3 represents the current version of the directive. Both statuses confirm that the parts meet hazardous substance restrictions and are acceptable for use in regulated applications.

Q: Are the DC ratings equivalent between BZ-2RN784 and GPTCRH11?

A: The BZ-2RN784 specifies 500mA DC at 125V DC. The GPTCRH11 does not provide DC current and voltage ratings in the available documentation. For applications requiring DC operation, the BZ-2RN784 is the specified selection.

Q: What is the difference in operating force between these switches?

A: The BZ-2RN784 has an operating force range of 255 to 368 grams-force (gf). The GPTCRH11 specifies a fixed operating force of 348 gf. This difference may affect actuator selection and mechanical design considerations in applications with specific force requirements.

Q: Can packaging differences affect component selection?

A: The BZ-2RN784 is supplied with unspecified packaging, while the GPTCRH11 is supplied in bulk packaging. Packaging differences do not affect electrical or mechanical performance but may impact receiving, storage, and handling procedures. Verify packaging requirements with procurement specifications.