BZ-1R374-P4 Equivalent & Substitute Parts Reference

Part Overview

The BZ-1R374-P4 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with screw terminal connections. This component operates at 15A AC and 125V AC, featuring a round pin plunger actuator and on-momentary switch function. The product is classified as obsolete, necessitating identification of active equivalent alternatives for continued system support and new design implementations.

Substiute Parts

BZ-1R374-P4

Honeywell Sensing and Productivity SolutionsIn Stock: 881BZ-1R374-P4 Datasheet

Current PartRFQ

GPTCNC11

ZF ElectronicsIn Stock: 740GPTCNC11 Datasheet

SimilarRFQ

TZ-1G

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

SimilarRFQ

Z-01HD55-B

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZ-1R374-P4 is determined by the following critical parameters: circuit configuration (SPDT), switch function (On-Momentary), actuator type (round pin plunger), termination style (screw terminal), and mounting type (chassis mount). The primary electrical constraint is the current rating at 15A AC and 125V AC operating conditions.

The substitute parts identified exhibit variations in current rating capacity, voltage specifications, and operating temperature ranges. These variations establish distinct substitution categories:

Category 1 - Full Current Rating Match (15A AC): GPTCNC11 maintains the 15A AC current specification but differs in mounting configuration (panel mount versus chassis mount) and operating temperature range (0°C to 55°C versus -55°C to 85°C).

Category 2 - Reduced Current Rating (1A AC/DC): TZ-1G provides chassis mount compatibility and identical operating position (0.625") but operates at significantly lower current capacity (1A AC/DC) with extended mechanical life (100,000 cycles) and electrical life (50,000 cycles).

Category 3 - Minimal Current Rating (100mA AC/DC): Z-01HD55-B offers chassis mount configuration with enhanced ingress protection (IP62) but operates at 100mA AC/DC current capacity with extended electrical life (500,000 cycles).

Parameter Comparison

Engineering Selection Recommendations

GPTCNC11 (ZF Electronics): This substitute maintains the 15A AC current rating and 125V AC voltage specification, providing electrical equivalence to the BZ-1R374-P4. However, the panel mount configuration differs from the original chassis mount design, requiring mechanical redesign of mounting interfaces. The operating temperature range (0°C to 55°C) is narrower than the original specification (-55°C to 85°C), limiting applicability in extended temperature environments. ROHS3 compliance status indicates current regulatory alignment. Selection of GPTCNC11 is appropriate for applications where panel mounting is feasible and operating temperatures remain within the specified range.

TZ-1G (Omron Automation and Safety): This substitute provides chassis mount compatibility and identical operating position (0.625") matching the original design. Current rating is reduced to 1A AC/DC, restricting application to circuits with lower power requirements. The extended operating temperature range (-65°C to 400°C) exceeds original specifications. Mechanical life remains at 20,000,000 cycles with additional electrical life specification (50,000 cycles). ROHS3 compliance and IP00 ingress protection are provided. Selection of TZ-1G is appropriate for low-current applications requiring chassis mount configuration and extended temperature performance.

Z-01HD55-B (Omron Automation and Safety): This substitute offers chassis mount configuration with enhanced ingress protection (IP62), suitable for environments requiring moisture and dust resistance. Current rating is reduced to 100mA AC/DC, limiting application to minimal power circuits. Operating position (0.846") differs from the original specification. Extended electrical life (500,000 cycles) is provided with maintained mechanical life (20,000,000 cycles). RoHS compliance and REACH unaffected status are confirmed. Selection of Z-01HD55-B is appropriate for low-current, sealed environment applications.

Frequently Asked Questions (FAQ)

Q: Can GPTCNC11 directly replace BZ-1R374-P4 in existing designs?

A: GPTCNC11 provides electrical equivalence (15A AC, 125V AC, SPDT, on-momentary function) but requires mechanical redesign due to panel mount versus chassis mount configuration difference. Operating temperature range is narrower (0°C to 55°C versus -55°C to 85°C), restricting use in extended temperature applications.

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

A: TZ-1G operates at 1A AC/DC current capacity, compared to the original 15A AC specification. This 15-fold reduction in current rating restricts application to low-power circuits only. Mechanical compatibility is maintained through identical chassis mount configuration and operating position (0.625").

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

A: No. Z-01HD55-B operates at 100mA AC/DC current capacity, representing a 150-fold reduction from the original 15A AC specification. This substitute is limited to minimal power circuits and is not suitable for applications requiring the original current capacity.

Q: What compliance certifications are provided by the substitute parts?

A: GPTCNC11 and TZ-1G provide ROHS3 compliance. Z-01HD55-B provides RoHS compliance with REACH unaffected status. All substitute parts maintain EAR99 ECCN classification consistent with the original part.

Q: How do operating temperature ranges compare across substitute options?

A: BZ-1R374-P4 operates from -55°C to 85°C. GPTCNC11 operates from 0°C to 55°C (narrower range). TZ-1G operates from -65°C to 400°C (extended range). Z-01HD55-B operates from -15°C to 80°C (slightly narrower range). Temperature range selection depends on specific application requirements.

Q: What packaging options are available for substitute parts?

A: GPTCNC11 is supplied in bulk packaging. TZ-1G is supplied in tray packaging. Z-01HD55-B is supplied in bulk packaging. Original BZ-1R374-P4 packaging specification was not provided in available documentation.

Q: Are all substitute parts currently in active production status?

A: Yes. GPTCNC11, TZ-1G, and Z-01HD55-B are all classified as active products. The original BZ-1R374-P4 is obsolete, making substitute identification necessary for continued component availability.