Terminal Block Connector 331140 Equivalent & Substitute Parts

Part Overview

The American Electrical 331140 is a 2-position ground terminal block connector designed for wire gauges 8-26 AWG (0.5-10mm²). This component features screw termination, polyamide insulation with UL94 V-2 flammability rating, and is color-coded green and yellow for ground/earth applications. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

331140

American ElectricalIn Stock: 1134331140 Datasheet

Current PartRFQ

334140

American Electrical Inc.In Stock: 1412334140 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the 331140 terminal block is determined by the following critical parameters:

• Number of Positions & Levels: Must remain 2 positions, 1 level
• Termination Style: Must be screw termination
• Type Classification: Must be ground/earth type
• Insulation Material & Flammability: Must maintain Polyamide (PA66) with UL94 V-2 rating
• Wire Gauge Compatibility: Substitute must accommodate the required wire gauge range
• Terminal Width: Physical dimensions must be compatible with existing mounting and connection points
• Color Coding: Must maintain green and yellow color scheme for ground applications
• Compliance: Must maintain ROHS3 compliance and equivalent certifications

The substitute part 334140 meets these criteria with the following consideration: while it supports a narrower wire gauge range (8-16 AWG versus 8-26 AWG), it maintains all other critical parameters and is classified as active product status, ensuring ongoing availability and support.

Parameter Comparison

Engineering Selection Recommendations

The 334140 serves as the active substitute for the obsolete 331140 terminal block connector. Both components maintain identical functional specifications for ground/earth applications with 2-position, single-level configuration and screw termination. Both achieve ROHS3 compliance and UL94 V-2 flammability certification with matching insulation materials.

The primary design consideration is wire gauge range: the 334140 accommodates 8-16 AWG (1.5-16mm²), which covers the upper portion of the 331140 range (8-26 AWG, 0.5-10mm²). Applications requiring wire gauges smaller than 8 AWG or larger than 16 AWG may require alternative evaluation. The 334140 features a 10.0mm terminal width compared to the 331140's 8.0mm width, reflecting the enhanced current-carrying capacity of the active design.

Frequently Asked Questions (FAQ)

Q: Can the 334140 directly replace the 331140 in all applications?

A: The 334140 is compatible with applications using wire gauges 8-16 AWG. If your application requires accommodation of wire gauges 17-26 AWG or smaller gauges below 8 AWG, alternative components must be evaluated.

Q: What is the significance of the terminal width difference (8.0mm vs. 10.0mm)?

A: Terminal width affects current-carrying capacity and physical mounting compatibility. The 334140's 10.0mm width provides enhanced capacity. Verify that your mounting footprint and connection points accommodate the larger terminal width before substitution.

Q: Are both parts compliant with current regulatory standards?

A: Both the 331140 and 334140 maintain ROHS3 compliance and UL94 V-2 flammability certification. The 334140, being active product status, receives ongoing manufacturer support and certification maintenance.

Q: Does the wire gauge range difference affect ground/earth functionality?

A: Both components are specified for ground/earth applications with identical functional design. Wire gauge range differences reflect the specific conductor sizes each component is engineered to accommodate. Select based on your actual wire gauge requirements.

Q: What packaging is available for the 334140?

A: The 334140 is supplied in box packaging, consistent with the 331140 original specification.