BZ-2RW8422-A2 Equivalent & Substitute Parts

Part Overview

The BZ-2RW8422-A2 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 500mA at 125V DC, featuring a lever roller actuator with screw terminal connections. The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing applications and new designs requiring similar switching characteristics.

Substiute Parts

BZ-2RW8422-A2

Honeywell Sensing and Productivity SolutionsIn Stock: 699BZ-2RW8422-A2 Datasheet

Current PartRFQ

TZ-1GV22

Omron Automation and SafetyIn Stock: 906TZ-1GV22 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZ-2RW8422-A2 requires matching the following critical parameters:

Mandatory Matching Criteria:

• Circuit configuration: SPDT
• Switch function: On-Momentary
• Actuator type: Lever with roller
• Mounting type: Chassis mount
• Termination style: Screw terminal
• Voltage rating: 125V AC minimum

Electrical Performance Considerations: The BZ-2RW8422-A2 operates at 15A AC / 500mA DC. Substitute parts must support the current and voltage requirements of the target application. Lower current-rated alternatives may be suitable only if the application current demand does not exceed the substitute's rating.

Environmental and Compliance Factors: Operating temperature range, mechanical life cycle rating, and RoHS compliance status are secondary selection criteria that depend on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

TZ-1GV22 Substitution Constraints:

The TZ-1GV22 from Omron Automation and Safety matches the BZ-2RW8422-A2 in circuit configuration (SPDT), switch function (On-Momentary), actuator type (Lever, Roller), mounting type (Chassis Mount), and termination style (Screw Terminal). Both parts maintain 125V AC voltage rating and are RoHS compliant.

Critical Limitation - Current Rating: The TZ-1GV22 is rated for 1A AC at 125V, compared to the BZ-2RW8422-A2 rating of 15A AC at 125V. This represents a 93% reduction in AC current capacity. The TZ-1GV22 is suitable only for applications where the AC current demand does not exceed 1A at 125V.

DC Voltage Limitation: The TZ-1GV22 DC voltage rating is 30V, whereas the BZ-2RW8422-A2 supports 125V DC. Applications requiring 125V DC operation cannot use the TZ-1GV22.

Mechanical Life Consideration: The BZ-2RW8422-A2 provides 20,000,000 mechanical cycles, while the TZ-1GV22 provides 100,000 cycles. Applications requiring extended cycle life should account for this 200-fold difference.

Product Status: The TZ-1GV22 maintains Active product status, ensuring ongoing availability and support, whereas the BZ-2RW8422-A2 is Obsolete.

Frequently Asked Questions (FAQ)

Q: Can the TZ-1GV22 directly replace the BZ-2RW8422-A2 in all applications?

A: No. The TZ-1GV22 has significantly lower current ratings (1A AC versus 15A AC) and lower DC voltage rating (30V versus 125V DC). Direct replacement is limited to applications where current demand does not exceed 1A AC at 125V and DC operation does not exceed 30V.

Q: What are the key compatibility factors when selecting a substitute?

A: The substitute must maintain SPDT circuit configuration, On-Momentary switch function, Lever Roller actuator type, Chassis Mount mounting, and Screw Terminal termination. Voltage and current ratings must meet or exceed application requirements.

Q: How does the mechanical life difference affect part selection?

A: The BZ-2RW8422-A2 provides 20,000,000 mechanical cycles compared to 100,000 cycles for the TZ-1GV22. Applications with high cycle count requirements should verify that the substitute's mechanical life rating is adequate for the intended duty cycle.

Q: Are there packaging differences between these parts?

A: The BZ-2RW8422-A2 packaging is not specified in available documentation. The TZ-1GV22 is supplied in Tray packaging. Verify packaging requirements for procurement and assembly processes.

Q: What compliance certifications apply to these parts?

A: The BZ-2RW8422-A2 is RoHS Compliant. The TZ-1GV22 is ROHS3 Compliant and REACH Unaffected. Both parts carry EAR99 ECCN classification.

Q: Can the TZ-1GV22 be used in high-current AC applications?

A: No. The TZ-1GV22 is rated for maximum 1A AC at 125V. Applications requiring 15A AC operation require a substitute with equivalent or higher current rating.