BA-2R-P1 Equivalent & Substitute Parts Reference

Part Overview

The BA-2R-P1 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with screw terminal connections. This component features a 20A AC / 500mA DC current rating at 125V AC and 125V DC, utilizing a round pin plunger actuator with On-Momentary switching function. The BA-2R-P1 is classified as obsolete, necessitating identification of equivalent substitute components that maintain functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

BA-2R-P1

Honeywell Sensing and Productivity SolutionsIn Stock: 823BA-2R-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

Substitute components for the BA-2R-P1 are identified based on strict alignment with the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Momentary
• Actuator type: Round (Pin Plunger)
• Termination style: Screw Terminal
• Voltage rating: 125V AC minimum
• Mounting compatibility: Chassis or Panel Mount

Secondary Consideration:

• Current rating must not exceed application requirements; lower current ratings indicate reduced load capacity and may require application-level verification

The three substitute parts listed (GPTCNC11, TZ-1G, Z-01HD55-B) share the core SPDT circuit and On-Momentary function with round pin plunger actuation. However, each substitute exhibits different current and voltage ratings, operating temperature ranges, and mechanical life specifications. Selection depends on the specific electrical load and environmental conditions of the target application.

Parameter Comparison

Engineering Selection Recommendations

GPTCNC11 (ZF Electronics): This substitute is suitable for applications requiring 15A AC at 125V with panel mount configuration. The GPTCNC11 maintains 20,000,000 mechanical life cycles equivalent to the BA-2R-P1. However, the operating temperature range (0°C to 55°C) is narrower than the original component. GPTCNC11 holds ROHS3 compliance and is currently in active production status.

TZ-1G (Omron Automation and Safety): This substitute is applicable only to low-current applications (1A AC/DC at 125V AC / 30V DC). The TZ-1G offers the widest operating temperature range (-65°C to 400°C) and includes IP00 ingress protection. Mechanical life is significantly reduced to 100,000 cycles. ROHS3 compliance is confirmed. This component is suitable for signal-level switching only, not for the 20A load capacity of the original BA-2R-P1.

Z-01HD55-B (Omron Automation and Safety): This substitute is restricted to ultra-low-current applications (100mA AC/DC at 125V AC / 30V DC). The Z-01HD55-B provides IP62 ingress protection and maintains 20,000,000 mechanical life cycles. Operating temperature range is -15°C to 80°C. RoHS compliance is confirmed. This component is suitable for signal-level switching and control circuits only.

All three substitutes are currently in active production status, ensuring long-term availability compared to the obsolete BA-2R-P1.

Frequently Asked Questions (FAQ)

Q: Can GPTCNC11 directly replace BA-2R-P1 in all applications?

A: GPTCNC11 is compatible with applications requiring up to 15A AC at 125V. The primary difference is mounting type: GPTCNC11 is panel mount while BA-2R-P1 is chassis mount. Current rating is reduced from 20A to 15A. Operating temperature range is narrower (0°C to 55°C versus -55°C to 85°C). Substitution is valid only when application current does not exceed 15A and operating environment remains within 0°C to 55°C.

Q: Why are TZ-1G and Z-01HD55-B listed as substitutes if they have much lower current ratings?

A: TZ-1G and Z-01HD55-B are listed as substitutes based on circuit configuration (SPDT), switch function (On-Momentary), actuator type (round pin plunger), and termination style (screw terminal) alignment. However, their significantly reduced current ratings (1A and 100mA respectively) restrict their use to signal-level switching applications. These components are not suitable for applications requiring the 20A AC load capacity of the BA-2R-P1.

Q: What is the impact of mounting type differences between BA-2R-P1 and GPTCNC11?

A: BA-2R-P1 is chassis mount, designed for installation through a panel with fastening from the rear. GPTCNC11 is panel mount, designed for installation from the front of a panel. Mechanical integration differs; chassis mount and panel mount configurations require different mounting hardware and panel cutout specifications. Electrical function remains identical.

Q: Are all substitute parts RoHS compliant?

A: Yes. BA-2R-P1 is RoHS Compliant. GPTCNC11 and TZ-1G are ROHS3 Compliant. Z-01HD55-B is RoHS Compliant. All components meet RoHS requirements for hazardous substance restrictions.

Q: Which substitute offers the best mechanical life equivalent to BA-2R-P1?

A: Both GPTCNC11 and Z-01HD55-B maintain 20,000,000 mechanical life cycles, matching the BA-2R-P1 specification. TZ-1G is rated for only 100,000 mechanical cycles, significantly lower than the original component.

Q: What is the operating temperature consideration for substitution?

A: BA-2R-P1 operates from -55°C to 85°C. GPTCNC11 range is 0°C to 55°C (narrower). TZ-1G range is -65°C to 400°C (wider). Z-01HD55-B range is -15°C to 80°C (narrower at low end). Substitute selection must ensure the application operating environment falls within the substitute component's specified temperature range.