BZ-2R244-P1 Equivalent & Substitute Parts Reference

Part Overview

The BZ-2R244-P1 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis mount switch features a round pin plunger actuator with screw terminal connections, rated for 5A AC at 125V and 500mA DC at 125V. The product is classified as obsolete, necessitating identification of equivalent substitute components for ongoing applications requiring SPDT snap action switching functionality with comparable electrical and mechanical characteristics.

Substiute Parts

BZ-2R244-P1

Honeywell Sensing and Productivity SolutionsIn Stock: 797BZ-2R244-P1 Datasheet

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GPTCNC11

ZF ElectronicsIn Stock: 740GPTCNC11 Datasheet

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TZ-1G

Omron Automation and SafetyIn Stock: 1058TZ-1G Datasheet

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Z-01HD55-B

Omron Automation and SafetyIn Stock: 1035Z-01HD55-B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZ-2R244-P1 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPDT
• Switch function must be On-Momentary
• Actuator type must be round pin plunger
• Termination style must be screw terminal
• Voltage rating (AC) must support 125V minimum
• Mechanical life must support 20,000,000 cycles minimum

Secondary Compatibility Considerations:

• Current rating capacity relative to application requirements
• Mounting type compatibility with chassis mount installations
• Operating temperature range suitability
• RoHS and MSL compliance status

The three substitute parts identified—GPTCNC11, TZ-1G, and Z-01HD55-B—share the core SPDT circuit configuration, on-momentary function, round pin plunger actuator, and screw terminal termination. However, each substitute exhibits distinct variations in current rating, voltage specifications, operating temperature range, and mechanical characteristics that determine suitability for specific application contexts.

Parameter Comparison

Engineering Selection Recommendations

GPTCNC11 (ZF Electronics)

The GPTCNC11 is suitable for applications requiring higher current capacity (15A AC) than the BZ-2R244-P1. This substitute maintains SPDT configuration, on-momentary function, round pin plunger actuator, and screw terminal termination. The GPTCNC11 is panel mount rather than chassis mount, which requires mechanical redesign consideration. Operating temperature range (0°C to +55°C) is significantly narrower than the original part. The GPTCNC11 is active product status with ROHS3 compliance. Selection is appropriate for applications with elevated current requirements and moderate temperature environments where panel mounting is feasible.

TZ-1G (Omron Automation and Safety)

The TZ-1G provides reduced current capacity (1A AC/DC) compared to the BZ-2R244-P1 and is suitable only for low-current switching applications. This substitute maintains SPDT configuration, on-momentary function, round pin plunger actuator, screw terminal termination, and chassis mount compatibility. Operating position matches the original part (0.625"). The TZ-1G offers extended operating temperature range (−65°C to +400°C) and active product status with ROHS3 compliance. Mechanical life is significantly reduced (100,000 cycles versus 20,000,000 cycles). Selection is appropriate for low-current applications requiring extended temperature performance and active product availability.

Z-01HD55-B (Omron Automation and Safety)

The Z-01HD55-B provides minimal current capacity (100mA AC/DC) and is suitable only for very low-current signal switching applications. This substitute maintains SPDT configuration, on-momentary function, round pin plunger actuator, screw terminal termination, and chassis mount compatibility. The Z-01HD55-B features IP62 ingress protection and active product status with RoHS compliance. Operating temperature range (−15°C to +80°C) is narrower than the original part. Mechanical life matches the original specification (20,000,000 cycles). Selection is appropriate for low-current applications requiring sealed enclosure protection and active product availability.

Frequently Asked Questions (FAQ)

Q: Can the GPTCNC11 directly replace the BZ-2R244-P1 in existing installations?

A: Direct replacement requires mechanical redesign. The GPTCNC11 is panel mount while the BZ-2R244-P1 is chassis mount. Additionally, the GPTCNC11 operating temperature range (0°C to +55°C) is narrower than the original part (−55°C to +204°C). Verify mounting compatibility and temperature requirements before substitution.

Q: What is the primary limitation of the TZ-1G as a substitute?

A: The TZ-1G current rating (1A AC/DC) is significantly lower than the BZ-2R244-P1 (5A AC, 500mA DC). The TZ-1G is suitable only for applications with current requirements not exceeding 1A. Additionally, mechanical life is reduced to 100,000 cycles versus 20,000,000 cycles for the original part.

Q: Is the Z-01HD55-B suitable for high-current applications?

A: No. The Z-01HD55-B current rating (100mA AC/DC) is substantially lower than the BZ-2R244-P1. This substitute is appropriate only for signal-level switching applications. Applications requiring 5A AC or 500mA DC cannot use this substitute.

Q: What compliance certifications are maintained across all substitute parts?

A: All substitute parts maintain RoHS or ROHS3 compliance and MSL rating 1 (Unlimited). The GPTCNC11 and TZ-1G carry ROHS3 certification, while the Z-01HD55-B carries RoHS certification. All parts are EAR99 classified.

Q: Are all substitute parts currently available as active products?

A: Yes. The BZ-2R244-P1 is obsolete. All three substitute parts—GPTCNC11, TZ-1G, and Z-01HD55-B—are active products with current manufacturing status and documented inventory availability.

Q: Which substitute part most closely matches the original BZ-2R244-P1 specifications?

A: The GPTCNC11 maintains the closest electrical specifications with 15A AC capacity at 125V and 20,000,000 cycle mechanical life. However, mounting type differs (panel mount versus chassis mount) and operating temperature range is narrower. The TZ-1G and Z-01HD55-B maintain chassis mount compatibility but with significantly reduced current ratings.