BZ-2RM22-A2 Equivalent & Substitute Parts

Part Overview

The BZ-2RM22-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 straight lever actuator with screw terminal connections. The product is classified as obsolete, making identification of equivalent substitute parts essential for system maintenance, repair, and component sourcing in applications requiring SPDT switching functionality.

Substiute Parts

BZ-2RM22-A2

Honeywell Sensing and Productivity SolutionsIn Stock: 746BZ-2RM22-A2 Datasheet

Current PartRFQ

GPTCRM01

ZF ElectronicsIn Stock: 1126GPTCRM01 Datasheet

SimilarRFQ

GPTCRM11

ZF ElectronicsIn Stock: 1005GPTCRM11 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BZ-2RM22-A2 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for substitution validity:

Critical Matching Parameters:

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

Acceptable Variation Parameters:

• Actuator type (lever configurations may differ: straight vs. roller)
• Operating force and release force (within functional tolerance)
• Operating position and travel specifications (within mechanical envelope)
• Operating temperature range (may be narrower than original)
• RoHS compliance status (both RoHS and ROHS3 acceptable)

The substitute parts GPTCRM01 and GPTCRM11, both manufactured by ZF Electronics, meet all critical matching parameters. Both are active products with current availability, addressing the obsolescence status of the BZ-2RM22-A2.

Parameter Comparison

Engineering Selection Recommendations

GPTCRM01 and GPTCRM11 Suitability:

Both GPTCRM01 and GPTCRM11 from ZF Electronics are functionally equivalent substitutes for the BZ-2RM22-A2. Both parts are currently active products with confirmed inventory availability (1079 and 907 units respectively), eliminating sourcing constraints associated with the obsolete BZ-2RM22-A2.

Compliance Considerations:

The substitute parts carry ROHS3 compliance certification, which exceeds the RoHS compliance of the original part. Both substitutes meet the same ECCN (EAR99) and HTSUS (8536.50.9040) classifications as the original component.

Operational Differences:

The substitute parts feature roller lever actuators compared to the straight lever of the original part. Operating force is significantly lower (158gf vs. 538gf), and release force is reduced (43gf vs. 170gf). Operating position tolerance is comparable (1.172" vs. 1.156"). The operating temperature range of the substitutes (0°C to 55°C) is narrower than the original (-55°C to 85°C), which may be a limiting factor in extreme temperature applications.

Selection Basis:

Choose GPTCRM01 or GPTCRM11 based on packaging requirements (both supplied in bulk) and application-specific temperature constraints. If the application operates within the 0°C to 55°C range and the reduced actuator force is acceptable for the mechanical design, either substitute provides direct functional replacement with improved product lifecycle status.

Frequently Asked Questions (FAQ)

Q: Can GPTCRM01 and GPTCRM11 be used interchangeably with BZ-2RM22-A2?

A: Yes. Both parts meet the critical electrical specifications: SPDT circuit, 15A AC at 125V, on-momentary function, chassis mount configuration, and screw terminal termination. Both achieve the same 20,000,000 cycle mechanical life rating.

Q: What is the primary difference between GPTCRM01 and GPTCRM11?

A: Both parts are identical in electrical and mechanical specifications. The difference lies in series designation (GPTCRM01 vs. GPTCRM11) and packaging batch identification. Selection between them is based on inventory availability and procurement logistics rather than technical performance.

Q: Does the roller actuator on the substitute parts affect compatibility?

A: The roller actuator is a mechanical design variation that does not affect electrical compatibility. However, the reduced operating force (158gf vs. 538gf) and release force (43gf vs. 170gf) must be evaluated against the mechanical requirements of the application. If the original design relied on the higher actuation force of the straight lever, mechanical redesign may be necessary.

Q: Are the substitute parts suitable for low-temperature applications?

A: The substitute parts are rated for 0°C to 55°C operation, which is narrower than the original BZ-2RM22-A2 range of -55°C to 85°C. Applications requiring operation below 0°C or above 55°C cannot use these substitutes without additional thermal management or alternative component selection.

Q: What is the significance of ROHS3 compliance on the substitute parts?

A: ROHS3 compliance indicates adherence to the Restriction of Hazardous Substances Directive 3, which is a more recent regulatory standard than the RoHS compliance of the original part. This represents improved environmental and safety compliance and does not create compatibility issues with the original design.

Q: Are there packaging differences between the original and substitute parts?

A: The original BZ-2RM22-A2 packaging is listed as "-" (unspecified). The substitute parts GPTCRM01 and GPTCRM11 are supplied in bulk packaging. Verify that bulk packaging meets procurement and storage requirements for your application.

Q: Can the BZ-2RM22-A2 be restocked, or must substitutes be used?

A: The BZ-2RM22-A2 is classified as obsolete, indicating discontinued production. New original stock may be available through authorized distributors with existing inventory (712 units noted), but long-term availability is not guaranteed. GPTCRM01 and GPTCRM11 are active products with confirmed current production and inventory, making them the recommended choice for new designs and long-term system support.