CT-8 Barrier Block Terminal Connector - Equivalent & Substitute Parts

Part Overview

The CT-8 is an 8-circuit barrier block terminal connector manufactured by Curtis Industries, designed for chassis and panel mounting applications requiring 30A current capacity at 600V. The connector features dual-wall barrier construction with screw termination on top and closed bottom termination, accommodating wire gauges from 10-22 AWG.

The CT-8 carries an obsolete product status. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and replacement applications where this connector type is specified in existing designs.

Substiute Parts

CT-8

Curtis IndustriesIn Stock: 904CT-8 Datasheet

Current PartRFQ

CDM-8

Curtis IndustriesIn Stock: 1172CDM-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-8 is determined by strict equivalence across the following critical parameters:

• Terminal block type (Barrier Block)
• Number of circuits (8)
• Pitch spacing (0.546" / 13.86mm)
• Current rating (30A minimum)
• Voltage rating (600V minimum)
• Wire gauge compatibility (10-22 AWG)
• Top termination method (Screws)
• Barrier construction (2 Wall / Dual)
• Operating temperature rating (130°C minimum)
• Insulation material (Polyester Thermoplastic)
• Flammability rating (UL94 V-0)

The CDM-8 meets all substitution criteria as an active-status equivalent from the same manufacturer.

Parameter Comparison

Engineering Selection Recommendations

The CDM-8 is the direct equivalent substitute for the CT-8. Both parts share identical electrical and mechanical specifications across all critical parameters. The CDM-8 carries active product status from Curtis Industries, ensuring continued availability and supply chain reliability compared to the obsolete CT-8.

The CDM-8 maintains full compliance with RoHS3 requirements and carries the same UL94 V-0 flammability rating and MSL classification as the original CT-8. Both connectors are classified under identical ECCN and HTSUS codes, confirming regulatory equivalence.

For applications currently specified with CT-8 connectors, the CDM-8 provides a direct replacement without design modification or electrical performance compromise.

Frequently Asked Questions (FAQ)

Q: Can the CDM-8 be used as a direct replacement for the CT-8 in existing designs?

A: Yes. The CDM-8 is electrically and mechanically equivalent to the CT-8 across all specified parameters, including current rating, voltage rating, wire gauge compatibility, pitch spacing, and barrier construction. No design changes are required.

Q: What is the primary difference between the CT-8 and CDM-8?

A: The CT-8 is obsolete, while the CDM-8 is an active product from Curtis Industries. Both parts are functionally identical. The CDM-8 represents the current production equivalent.

Q: Are there packaging differences between these parts?

A: The CT-8 specification does not indicate packaging type, while the CDM-8 is supplied in bulk packaging. This difference does not affect electrical or mechanical compatibility.

Q: Do both connectors meet the same compliance standards?

A: Yes. Both the CT-8 and CDM-8 meet UL94 V-0 flammability requirements, carry MSL 1 (Unlimited) moisture sensitivity classification, and share identical ECCN (EAR99) and HTSUS (8536.90.4000) codes. The CDM-8 additionally carries ROHS3 compliance.

Q: What wire gauges are compatible with these connectors?

A: Both the CT-8 and CDM-8 accommodate wire gauges from 10-22 AWG, supporting a range of conductor sizes for 30A applications at 600V.

Q: Can these connectors be used in high-temperature applications?

A: Both connectors are rated for continuous operation at 130°C maximum, with polyester thermoplastic insulation suitable for industrial and chassis-mounted applications within this temperature range.