Equivalent & Substitute Parts: P4-12R-T

Part Overview

The Panduit P4-12R-T is a ring terminal connector designed for 4 AWG wire with a 1/2 inch stud connection. This circular terminal features a crimp termination method and is constructed with copper contact material finished in tin, incorporating a brazed seam for structural integrity. The P4-12R-T is classified as obsolete, necessitating identification of active substitute components that maintain functional compatibility for applications requiring ring terminal connectors in this wire gauge and stud size category.

Substiute Parts

P4-12R-T

Panduit CorpIn Stock: 1060P4-12R-T Datasheet

Current PartRFQ

P4-56R-T

Panduit CorpIn Stock: 1291P4-56R-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4-12R-T is determined by the following critical parameters that must remain constant or compatible:

Fixed Parameters (Must Match):

• Wire Gauge: 4 AWG
• Terminal Type: Circular
• Termination Method: Crimp
• Contact Material: Copper
• Contact Finish: Tin
• Insulation Type: Non-Insulated
• Series: Pan-Term®
• Mounting Type: Free Hanging (In-Line)
• Features: Brazed Seam

Variable Parameters (Allowable Differences):

• Stud/Tab Size: The substitute part may differ in stud diameter, provided the application permits mechanical accommodation
• Physical Dimensions: Thickness, width, and length may vary within the constraints of the terminal design

The P4-56R-T qualifies as a substitute because it maintains all fixed parameters while differing only in stud size (5/16 inch versus 1/2 inch), which represents a mechanical variation that does not affect the electrical termination characteristics for 4 AWG wire.

Parameter Comparison

Engineering Selection Recommendations

The P4-56R-T serves as the active substitute for the obsolete P4-12R-T. Both components maintain identical electrical and material specifications for 4 AWG wire termination, including copper contact material with tin finish and crimp termination methodology.

The primary distinction between these components is the stud size: the P4-12R-T accommodates a 1/2 inch stud, while the P4-56R-T accommodates a 5/16 inch stud. Selection between these components depends on the stud diameter specified in the target application. The P4-56R-T is currently in active production status, ensuring availability and supply chain continuity.

Both components satisfy ROHS3 compliance requirements and maintain identical regulatory classifications (ECCN: EAR99, HTSUS: 8536.90.4000). The physical dimension variations (width and length) reflect the proportional scaling associated with the different stud sizes and do not affect functional performance for 4 AWG wire applications.

Frequently Asked Questions (FAQ)

Q: Can the P4-56R-T directly replace the P4-12R-T in all applications?

A: The P4-56R-T can replace the P4-12R-T only when the target application uses a 5/16 inch stud. The stud size difference is a mechanical constraint that must align with the equipment or assembly design. If the original application requires a 1/2 inch stud, the P4-56R-T is not compatible.

Q: What are the electrical differences between these two parts?

A: There are no electrical differences. Both components are rated for 4 AWG wire, feature identical copper contact material with tin finish, and employ the same crimp termination method. The electrical performance and current-carrying capacity are equivalent.

Q: Why does the P4-12R-T show as obsolete?

A: The P4-12R-T is classified as obsolete by the manufacturer. The P4-56R-T is the active equivalent in the Pan-Term® series for 4 AWG circular ring terminals with crimp termination. For applications requiring a 1/2 inch stud, alternative manufacturers may offer equivalent products; however, only the P4-56R-T is specified as the Panduit substitute.

Q: Are there compliance or certification differences?

A: Both components carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and EAR99 classification. No compliance advantages or disadvantages exist between the two parts.

Q: What is the significance of the brazed seam feature?

A: The brazed seam is a structural feature present on both components that provides mechanical integrity to the ring terminal connector. This feature is consistent across both the P4-12R-T and P4-56R-T.

Q: How do the physical dimensions differ?

A: The P4-56R-T is proportionally smaller than the P4-12R-T due to the reduced stud size. The width decreases from 0.860 inches to 0.680 inches, and the overall length decreases from 1.550 inches to 1.460 inches. Thickness remains constant at 0.050 inches. These dimensional changes reflect the scaled design for the smaller stud diameter.