MA-6 Barrier Block Terminal Connector - Equivalent & Substitute Parts

Part Overview

The MA-6 is a 6-circuit barrier block terminal connector manufactured by Curtis Industries, designed for chassis and panel mounting applications. This connector features a 0.500" (12.70mm) pitch configuration with dual-wall barrier construction and supports wire gauges from 12-22 AWG at a 25A current rating. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and system continuity in legacy installations.

Substiute Parts

MA-6

Curtis IndustriesIn Stock: 681MA-6 Datasheet

Current PartRFQ

TB200-06

Eaton - Bussmann Electrical DivisionIn Stock: 1235TB200-06 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TB200-06 manufactured by Eaton - Bussmann Electrical Division qualifies as a functional substitute for the MA-6 based on the following critical parameters:

Matching Parameters:

• Number of circuits: 6
• Number of wire entries: 12
• Number of rows: 2
• Wire gauge compatibility: 12-22 AWG
• Top termination method: Screws
• Bottom termination: Closed
• Barrier type: 2 Wall (Dual)
• Flange feature: Present
• Mounting type: Chassis, Panel
• Terminal block type: Barrier Block
• Flammability rating: UL94 V-0

Differing Parameters:

• Pitch: TB200-06 uses 0.437" (11.10mm) versus MA-6 at 0.500" (12.70mm)
• Current rating: TB200-06 rated at 30A versus MA-6 at 25A
• Operating temperature range: TB200-06 operates -40°C to 130°C versus MA-6 at 150°C maximum
• Insulation material: TB200-06 uses thermoplastic versus MA-6 phenolic
• Product status: TB200-06 is active versus MA-6 obsolete

The reduced pitch dimension and thermoplastic insulation material represent the primary design differences requiring evaluation during substitution assessment.

Parameter Comparison

Engineering Selection Recommendations

The TB200-06 represents an active-status alternative to the obsolete MA-6 connector. Both components maintain UL94 V-0 flammability certification and support identical wire gauge ranges (12-22 AWG) with dual-wall barrier construction. The TB200-06 provides enhanced current capacity at 30A compared to the MA-6 at 25A, and maintains RoHS3 compliance status.

Physical integration requires consideration of the pitch difference: the TB200-06 operates at 0.437" (11.10mm) spacing versus the MA-6 at 0.500" (12.70mm). This dimensional variance affects mounting hole patterns and panel cutout specifications. The TB200-06's thermoplastic insulation material differs from the MA-6's phenolic construction, with corresponding operating temperature limits of -40°C to 130°C versus the MA-6's 150°C maximum.

Selection of the TB200-06 is appropriate for applications where the reduced pitch accommodates existing mechanical constraints, operating temperatures remain within the -40°C to 130°C range, and thermoplastic insulation properties align with application requirements.

Frequently Asked Questions (FAQ)

Q: Can the TB200-06 directly replace the MA-6 in existing installations?

A: Direct mechanical replacement requires verification of mounting hole spacing compatibility. The TB200-06 pitch of 0.437" (11.10mm) differs from the MA-6 at 0.500" (12.70mm), necessitating assessment of panel cutout and mounting hole patterns in the target application.

Q: What are the critical differences between these two connectors?

A: The primary differences are pitch dimension (0.437" versus 0.500"), insulation material (thermoplastic versus phenolic), maximum operating temperature (130°C versus 150°C), and product status (active versus obsolete). Both maintain identical circuit count, wire gauge compatibility, and flammability ratings.

Q: Are both connectors RoHS compliant?

A: Yes. The MA-6 is RoHS Compliant, and the TB200-06 is ROHS3 Compliant, meeting current regulatory requirements for hazardous substance restrictions.

Q: Does the TB200-06 support the same wire gauges as the MA-6?

A: Yes. Both connectors accommodate wire gauges from 12-22 AWG with screw-type termination.

Q: What is the significance of the current rating difference?

A: The TB200-06 is rated at 30A versus the MA-6 at 25A. This indicates the TB200-06 can handle higher current loads. Applications operating at or below 25A are within the safe operating range of both components.

Q: How do the operating temperature ranges compare?

A: The MA-6 operates to a maximum of 150°C, while the TB200-06 operates within -40°C to 130°C. Applications requiring sustained operation above 130°C are not suitable for the TB200-06.