BZ-2RW8405-A2 Equivalent & Substitute Parts

Part Overview

The BZ-2RW8405-A2 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis-mounted switch is designed for applications requiring single-pole double-throw functionality with 15A AC capacity at 125V. The part is currently active in production with 904 units in stock. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits functional alternatives within specified electrical and mechanical parameters.

Substiute Parts

BZ-2RW8405-A2

Honeywell Sensing and Productivity SolutionsIn Stock: 971BZ-2RW8405-A2 Datasheet

Current PartRFQ

GPTCLS11

ZF ElectronicsIn Stock: 1170GPTCLS11 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZ-2RW8405-A2 is permissible when the following core electrical and mechanical parameters are maintained or exceeded:

Critical Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Momentary
• Current rating: Minimum 15A AC
• Voltage rating: Minimum 125V AC
• Actuator type: Lever, Straight
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Mechanical life: Minimum 20,000,000 cycles

Allowable Variation Parameters:

• Operating force and release force may vary within mechanical design tolerances
• Operating position, pretravel, differential travel, and overtravel may vary within ±0.1 inch (2.54mm) without functional impact
• Operating temperature range may be narrower than the original specification
• RoHS compliance status may differ (RoHS Compliant or ROHS3 Compliant are both acceptable)

The GPTCLS11 manufactured by ZF Electronics meets the critical matching parameters and is identified as a functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

BZ-2RW8405-A2 (Primary Selection):

• Select when operating temperature range of -55°C to 85°C is required
• Select when DC voltage or current specifications are critical to the application
• RoHS Compliant status meets standard environmental requirements
• Active production status ensures long-term availability

GPTCLS11 (Substitute Selection):

• Select when operating temperature range is limited to 0°C to 55°C
• Select when AC-only operation is acceptable and DC specifications are not required
• ROHS3 Compliant status meets enhanced environmental requirements
• Acceptable for applications where higher operating force (71gf vs. 28gf) and release force (14gf vs. 7.087gf) do not create mechanical interference
• Mechanical life rating of 20,000,000 cycles matches primary part specification

Both parts share identical circuit configuration, switch function, current and voltage ratings for AC operation, actuator type, mounting type, termination style, differential travel, and overtravel specifications. Selection between these parts depends on application-specific temperature requirements and DC operation necessity.

Frequently Asked Questions (FAQ)

Q: Can GPTCLS11 replace BZ-2RW8405-A2 in all applications?

A: GPTCLS11 is functionally equivalent for AC applications operating within the 0°C to 55°C temperature range. Applications requiring DC operation at 500mA or operating temperatures below 0°C or above 55°C must use BZ-2RW8405-A2.

Q: What is the significance of the operating force difference between these parts?

A: BZ-2RW8405-A2 has an operating force of 28gf, while GPTCLS11 requires 71gf. This difference affects the mechanical effort required to actuate the switch. Verify that the actuating mechanism in your application can accommodate the higher force requirement of GPTCLS11.

Q: Are both parts pin-compatible?

A: Both parts use screw terminal termination and chassis mount configuration. Physical mounting and electrical connection compatibility must be verified against your specific PCB or panel layout, as chassis-mounted switches may have different mounting hole patterns.

Q: What does RoHS Compliant versus ROHS3 Compliant mean?

A: RoHS Compliant refers to the original Restriction of Hazardous Substances directive. ROHS3 Compliant refers to the updated directive with additional restricted substances. Both designations indicate environmental compliance; ROHS3 represents a more recent standard.

Q: Can I use GPTCLS11 in a -40°C application?

A: No. GPTCLS11 operating temperature range is 0°C to 55°C. For applications requiring operation below 0°C, BZ-2RW8405-A2 with its -55°C to 85°C range is required.

Q: What is the difference between pretravel and differential travel?

A: Pretravel (0.328" for BZ-2RW8405-A2, 0.394" for GPTCLS11) is the distance the actuator moves before electrical contact occurs. Differential travel (0.050" for both) is the distance between switch closure and opening points. Both parameters affect switch response characteristics.

Q: Are there inventory considerations for substitution?

A: BZ-2RW8405-A2 has 904 units in stock. GPTCLS11 has 1119 units in stock. Substitution may be considered when primary part inventory is depleted and application parameters permit use of the alternative.