GPTCNH01 Equivalent & Substitute Parts

Part Overview

The GPTCNH01 is a snap action switch manufactured by ZF Electronics, configured as a single-pole double-throw (SPDT) panel mount device with on-momentary function. This switch is rated for 15A at 125V AC and features an overtravel plunger actuator with screw terminal connections. The part is currently active and in stock with 771 units available.

Substitute parts are identified when equivalent electrical ratings, mechanical configurations, and functional characteristics align with the main part specifications. The following sections detail compatible alternatives from Honeywell Sensing and Productivity Solutions that maintain the core switching functionality and electrical performance requirements.

Substiute Parts

GPTCNH01

ZF ElectronicsIn Stock: 862GPTCNH01 Datasheet

Current PartRFQ

BZ-2RQ124-A2

Honeywell Sensing and Productivity SolutionsIn Stock: 1013BZ-2RQ124-A2 Datasheet

SimilarRFQ

BZ-2RQ77

Honeywell Sensing and Productivity SolutionsIn Stock: 1265BZ-2RQ77 Datasheet

SimilarRFQ

BZ-3YQ66T

Honeywell Sensing and Productivity SolutionsIn Stock: 770BZ-3YQ66T Datasheet

SimilarRFQ

BZ-7RQ1T

Honeywell Sensing and Productivity SolutionsIn Stock: 1173BZ-7RQ1T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GPTCNH01 is determined by the following critical parameters:

Primary Electrical Criteria:

• Circuit configuration must be SPDT
• Switch function must be On-Mom
• Current rating must support minimum 15A at 125V AC
• Voltage rating must support minimum 125V AC

Mechanical Criteria:

• Actuator type must be overtravel plunger
• Mounting type must be panel mount
• Termination style must be screw terminal
• Mechanical life must meet or exceed 20,000,000 cycles

Compliance Criteria:

• RoHS compliance required
• Moisture sensitivity level 1 (Unlimited)

Parts meeting all primary electrical and mechanical criteria are classified as direct substitutes. Parts with differing electrical ratings or mechanical configurations are noted separately with specific parameter deviations.

Parameter Comparison

Engineering Selection Recommendations

BZ-2RQ124-A2 (Honeywell)

This part qualifies as a direct substitute for the GPTCNH01. Both devices share identical circuit configuration (SPDT), switch function (On-Mom), current rating (15A AC), voltage rating (125V AC), actuator type (overtravel plunger), mounting type (panel mount), and termination style (screw terminal). The operating force range of 255–368gf encompasses the GPTCNH01 specification of 348gf. The BZ-2RQ124-A2 provides extended operating temperature range (-55°C to 121°C) compared to the GPTCNH01 (0°C to 55°C). Both parts are RoHS compliant and carry MSL 1 rating. The BZ-2RQ124-A2 is currently active with 914 units in stock.

BZ-2RQ77 (Honeywell)

This part qualifies as a direct substitute for the GPTCNH01 with respect to electrical ratings and core mechanical function. Both devices share identical circuit configuration (SPDT), switch function (On-Mom), current rating (15A AC), voltage rating (125V AC), actuator type (overtravel plunger), mounting type (panel mount), and termination style (screw terminal). The operating force range of 255–368gf encompasses the GPTCNH01 specification of 348gf. The primary mechanical difference is the operating position of 1.720" (43.7mm) compared to the GPTCNH01 at 0.825" (21.0mm), which reflects a longer stroke application. Both parts are RoHS compliant and carry MSL 1 rating. The BZ-2RQ77 is currently active with 1238 units in stock.

BZ-7RQ1T (Honeywell)

This part qualifies as a direct substitute for the GPTCNH01 with respect to electrical ratings and core mechanical function. Both devices share identical circuit configuration (SPDT), switch function (On-Mom), current rating (15A AC), voltage rating (125V AC), actuator type (overtravel plunger), mounting type (panel mount), and termination style (screw terminal). The operating force range of 624–794gf is higher than the GPTCNH01 specification of 348gf, indicating increased actuation force requirement. The operating position of 0.859" (21.8mm) is comparable to the GPTCNH01 at 0.825" (21.0mm). The pretravel of 0.030" (0.8mm) and differential travel of 0.005" (0.13mm) differ from the GPTCNH01 specifications. Both parts are RoHS compliant and carry MSL 1 rating. The BZ-7RQ1T is currently active with 1068 units in stock.

BZ-3YQ66T (Honeywell) – Not Recommended

This part does not qualify as a substitute for the GPTCNH01. The current rating is 5A AC, which is insufficient for the GPTCNH01 requirement of 15A AC. The voltage rating is 250V AC, which exceeds the GPTCNH01 requirement of 125V AC. The product status is listed as obsolete. This part is excluded from substitution consideration.

Frequently Asked Questions (FAQ)

Q: Can BZ-2RQ124-A2 be used as a direct replacement for GPTCNH01?

A: Yes. The BZ-2RQ124-A2 meets all primary electrical and mechanical criteria for substitution. Both parts are SPDT on-momentary switches rated for 15A at 125V AC with overtravel plunger actuators, panel mount configuration, and screw terminal termination. The operating force range of 255–368gf encompasses the GPTCNH01 specification of 348gf. Both parts are RoHS compliant with MSL 1 rating.

Q: What is the primary difference between BZ-2RQ77 and GPTCNH01?

A: The BZ-2RQ77 has an operating position of 1.720" (43.7mm) compared to the GPTCNH01 at 0.825" (21.0mm). This longer stroke indicates the BZ-2RQ77 is designed for applications requiring greater plunger travel. All other electrical and core mechanical parameters are equivalent.

Q: Why does BZ-7RQ1T have a higher operating force than GPTCNH01?

A: The BZ-7RQ1T operating force range of 624–794gf is higher than the GPTCNH01 specification of 348gf. This indicates the BZ-7RQ1T requires greater actuation force and is designed for applications where increased mechanical resistance or deliberate actuation is required. The electrical ratings remain identical.

Q: Is BZ-3YQ66T compatible with GPTCNH01?

A: No. The BZ-3YQ66T has a current rating of 5A AC, which is insufficient for the GPTCNH01 requirement of 15A AC. Additionally, the product status is listed as obsolete. This part does not qualify for substitution.

Q: What is the temperature operating range difference between GPTCNH01 and BZ-2RQ124-A2?

A: The GPTCNH01 operates from 0°C to 55°C, while the BZ-2RQ124-A2 operates from -55°C to 121°C. The BZ-2RQ124-A2 provides extended temperature capability in both directions. Application requirements determine whether this extended range is necessary.

Q: Are all substitute parts RoHS compliant?

A: Yes. The GPTCNH01 is ROHS3 compliant, and all active substitute parts (BZ-2RQ124-A2, BZ-2RQ77, BZ-7RQ1T) are RoHS compliant. The obsolete part BZ-3YQ66T is also RoHS compliant but is not recommended for new designs.

Q: What packaging is available for these parts?

A: The GPTCNH01, BZ-2RQ124-A2, BZ-2RQ77, and BZ-7RQ1T are all available in bulk packaging. The BZ-3YQ66T packaging is not specified.

Q: Do all substitute parts have the same mechanical life rating?

A: Yes. The GPTCNH01 and all active substitute parts (BZ-2RQ124-A2, BZ-2RQ77, BZ-7RQ1T) are rated for 20,000,000 mechanical cycles.