BZ-2RW84441-A2 Equivalent & Substitute Parts

Part Overview

The BZ-2RW84441-A2 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis mount switch is rated for 15A AC at 125V and features a lever leaf actuator with screw terminal connections. The product is classified as obsolete, necessitating identification of equivalent alternatives for ongoing applications requiring SPDT snap action switching functionality.

Substiute Parts

BZ-2RW84441-A2

Honeywell Sensing and Productivity SolutionsIn Stock: 819BZ-2RW84441-A2 Datasheet

Current PartRFQ

TZ-1GV2

Omron Automation and SafetyIn Stock: 1055TZ-1GV2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZ-2RW84441-A2 is constrained by the following critical parameters:

Circuit Configuration: Both the main part and substitute must maintain SPDT (Single Pole Double Throw) topology to preserve switching logic in the application.

Mounting Interface: Chassis mount configuration is required to ensure mechanical compatibility with existing enclosure designs and panel cutouts.

Termination Style: Screw terminal connections must be maintained for direct wiring compatibility without adapter requirements.

Switch Function: On-momentary operation must be preserved to match application control sequences.

Voltage Compatibility: The substitute must support minimum 125V AC rating to function within the specified electrical environment.

The TZ-1GV2 from Omron Automation and Safety satisfies these core substitution criteria. However, the TZ-1GV2 exhibits reduced current capacity (1A AC/DC versus 15A AC), which represents a significant functional limitation. This substitute is suitable only for applications where the actual load current does not exceed 1A.

Parameter Comparison

Engineering Selection Recommendations

The TZ-1GV2 is an active product with current manufacturing support and ROHS3 compliance, providing supply chain continuity advantages over the obsolete BZ-2RW84441-A2.

Current Capacity Limitation: The TZ-1GV2 current rating of 1A AC represents a 93.3% reduction from the BZ-2RW84441-A2 specification of 15A AC. This substitute is applicable only to applications where the actual circuit current does not exceed 1A at 125V AC.

DC Voltage Limitation: The TZ-1GV2 DC voltage rating of 30V is substantially lower than the BZ-2RW84441-A2 rating of 125V DC. Applications requiring 125V DC operation cannot use this substitute.

Mechanical Life Consideration: The TZ-1GV2 mechanical life rating of 100,000 cycles is significantly lower than the BZ-2RW84441-A2 specification of 20,000,000 cycles. Applications requiring extended cycle life should account for this reduced durability specification.

Temperature Range Advantage: The TZ-1GV2 operating temperature range of -65°C to 400°C exceeds the BZ-2RW84441-A2 range of -55°C to 85°C, providing broader environmental compatibility for extreme temperature applications.

Compliance Status: Both parts maintain RoHS compliance. The TZ-1GV2 ROHS3 certification aligns with current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the TZ-1GV2 directly replace the BZ-2RW84441-A2 in all applications?

A: No. The TZ-1GV2 is suitable only for applications where the load current does not exceed 1A at 125V AC and the DC voltage requirement does not exceed 30V. Applications requiring the full 15A AC capacity of the original part cannot use this substitute.

Q: What are the primary differences between these two switches?

A: The primary differences are current capacity (15A AC versus 1A AC), DC voltage rating (125V versus 30V), mechanical life (20,000,000 cycles versus 100,000 cycles), and operating temperature range (-55°C to 85°C versus -65°C to 400°C). Both maintain SPDT circuit configuration, on-momentary function, chassis mount design, and screw terminal termination.

Q: Are the mounting interfaces identical between these parts?

A: Both parts feature chassis mount configuration with screw terminal connections. Physical dimensions and panel cutout requirements may differ. Mechanical drawings should be consulted to confirm dimensional compatibility with existing enclosure designs.

Q: What is the packaging difference between these parts?

A: The BZ-2RW84441-A2 packaging specification is not provided in the available data. The TZ-1GV2 is supplied in tray packaging.

Q: Does the TZ-1GV2 meet current regulatory requirements?

A: Yes. The TZ-1GV2 carries ROHS3 compliance certification and is classified as an active product with current manufacturing support, ensuring ongoing availability and regulatory alignment.

Q: What should be evaluated before selecting the TZ-1GV2 as a substitute?

A: Confirm that the application load current does not exceed 1A at 125V AC, the DC voltage requirement does not exceed 30V, the mechanical life requirement does not exceed 100,000 cycles, and the operating temperature range falls within -65°C to 400°C. Verify physical dimensions and panel mounting compatibility with existing equipment.