BZ-R2136-P1 Equivalent & Substitute Parts Reference

Part Overview

The BZ-R2136-P1 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis mount switch is rated for 10A at 125V AC with a round pin plunger actuator and screw terminal connections. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and new design applications where similar functionality is required.

Substiute Parts

BZ-R2136-P1

Honeywell Sensing and Productivity SolutionsIn Stock: 909BZ-R2136-P1 Datasheet

Current PartRFQ

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 of the BZ-R2136-P1 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPDT
• Switch function must be On-Momentary
• Voltage rating must support 125V AC minimum
• Actuator type must be round pin plunger
• Termination style must be screw terminal
• Mounting type should be chassis mount for direct replacement

Secondary Considerations:

• Current rating must equal or exceed 10A AC for direct substitution
• Operating temperature range should encompass the original -55°C to 85°C specification
• Mechanical life should meet or exceed 20,000,000 cycles
• RoHS compliance status for regulatory alignment

The substitute parts listed below meet the primary compatibility criteria but vary in current rating, mounting configuration, and operating specifications. Selection depends on application requirements and tolerance for parameter deviations.

Parameter Comparison

Engineering Selection Recommendations

GPTCNC11 (ZF Electronics): This substitute provides the closest current rating match at 15A AC, exceeding the original 10A specification. It maintains SPDT configuration, On-Momentary function, and 125V AC rating. However, it features panel mount configuration rather than chassis mount, requiring mechanical redesign for direct installation. Operating temperature range is narrower (-0°C to 55°C) compared to the original specification. ROHS3 compliance status aligns with current regulatory requirements. Suitable for applications where panel mounting is acceptable and operating temperature remains within 0°C to 55°C.

TZ-1G (Omron Automation and Safety): This substitute maintains chassis mount configuration and identical operating position (0.625"), facilitating mechanical compatibility. However, current rating is significantly reduced to 1A AC, making it unsuitable for the original 10A application. Extended operating temperature range (-65°C to 400°C) exceeds original specifications. ROHS3 compliance is current. Mechanical life is substantially lower at 100,000 cycles versus 20,000,000 cycles. This part is applicable only for low-current applications requiring the same mechanical form factor.

Z-01HD55-B (Omron Automation and Safety): This substitute maintains chassis mount configuration and 20,000,000 cycle mechanical life matching the original. Current rating is severely limited to 100mA AC, restricting application to signal-level switching only. Operating temperature range (-15°C to 80°C) is narrower than the original. Ingress protection rating of IP62 provides enhanced environmental sealing. RoHS compliance is maintained. Electrical life specification of 500,000 cycles is provided. This part is applicable only for low-current, signal-level switching applications.

Recommendation Summary: For direct functional replacement at 10A AC with chassis mount configuration, none of the listed substitutes provide complete parameter equivalence. GPTCNC11 offers the best current rating match but requires panel mount accommodation. TZ-1G and Z-01HD55-B are suitable only for reduced-current applications. Application-specific requirements must determine the appropriate substitute selection.

Frequently Asked Questions (FAQ)

Q: Can GPTCNC11 directly replace BZ-R2136-P1 in existing equipment?

A: GPTCNC11 provides electrical equivalence at 15A AC with SPDT configuration and 125V AC rating. However, mechanical replacement requires modification because GPTCNC11 is panel mount while BZ-R2136-P1 is chassis mount. Mounting hardware and enclosure design must be adapted accordingly.

Q: Why is TZ-1G listed as a substitute if its current rating is only 1A?

A: TZ-1G is listed based on the provided substitute list and shares SPDT configuration, On-Momentary function, round pin plunger actuator, chassis mount type, and identical operating position (0.625"). It is suitable only for applications where current requirements do not exceed 1A AC. Current rating is the limiting factor for most applications originally designed for 10A.

Q: What is the significance of the operating temperature range differences?

A: The original BZ-R2136-P1 operates from -55°C to 85°C. GPTCNC11 is limited to 0°C to 55°C, which excludes low-temperature operation below 0°C and high-temperature operation above 55°C. TZ-1G extends to -65°C and 400°C, but this does not compensate for its 1A current limitation. Z-01HD55-B operates -15°C to 80°C, excluding operation below -15°C. Application environment must be evaluated against these ranges.

Q: Are all substitutes RoHS compliant?

A: Yes. BZ-R2136-P1 is RoHS Compliant. GPTCNC11 and TZ-1G are ROHS3 Compliant. Z-01HD55-B is RoHS Compliant. All parts meet RoHS requirements, though ROHS3 represents a more recent compliance standard.

Q: What does "On-Momentary" switch function mean?

A: On-Momentary indicates the switch activates (closes) when the plunger is pressed and returns to the off position when pressure is released. All listed parts share this function, ensuring consistent operational behavior.

Q: Can Z-01HD55-B be used in the original 10A application?

A: No. Z-01HD55-B is rated for 100mA AC maximum, which is 1% of the original 10A requirement. Using this part in a 10A circuit would result in switch failure and potential safety hazards.

Q: What is the difference between chassis mount and panel mount?

A: Chassis mount switches are installed through an opening in the equipment frame or internal structure. Panel mount switches are installed through an opening in the front or rear panel. These mounting types require different mechanical interfaces and cannot be directly interchanged without enclosure modification.

Q: How do mechanical life ratings compare?

A: BZ-R2136-P1, GPTCNC11, and Z-01HD55-B all specify 20,000,000 mechanical cycles. TZ-1G specifies only 100,000 mechanical cycles, representing a 200-fold reduction. For applications requiring extended operational life, TZ-1G is not suitable.

Q: What is the ECCN classification and why does it matter?

A: All listed parts are classified as EAR99 under Export Control Classification Number (ECCN) regulations. This classification indicates the parts are not subject to specific export controls, simplifying procurement and distribution across jurisdictions.