CT-48 Equivalent & Substitute Parts

Part Overview

The CT-48 is a 48-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications requiring high-density terminal connections. This component features dual-wall barrier construction with screw termination on the top and closed termination on the bottom, rated for 30A at 600V with wire gauge compatibility from 10-22 AWG.

The CT-48 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement, repair, and new installations where this connector type is specified.

Substiute Parts

CT-48

Curtis IndustriesIn Stock: 1077CT-48 Datasheet

Current PartRFQ

CDM-48

Curtis IndustriesIn Stock: 1165CDM-48 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CDM-48 qualifies as a direct substitute for the CT-48 based on strict equivalence across all critical electrical and mechanical parameters. Substitution is valid when the following parameters match identically:

• Number of Circuits: 48
• Pitch: 0.546" (13.86mm)
• Current Rating: 30A
• Voltage Rating: 600V
• Wire Gauge: 10-22 AWG
• Barrier Type: 2 Wall (Dual)
• Top Termination: Screws
• Bottom Termination: Closed
• Mounting Type: Chassis, Panel
• Operating Temperature: 130°C
• Material - Insulation: Polyester Thermoplastic
• Flammability Rating: UL94 V-0

The CDM-48 maintains full compatibility with all specified electrical ratings, mechanical dimensions, and environmental performance requirements of the CT-48.

Parameter Comparison

Engineering Selection Recommendations

The CDM-48 is the appropriate substitute for the obsolete CT-48 terminal block connector. Both components are manufactured by Curtis Industries and maintain identical electrical specifications, mechanical dimensions, and environmental ratings.

The CDM-48 carries active product status, ensuring ongoing availability and supply chain continuity. The CDM-48 meets ROHS3 compliance, representing current regulatory standards, while the CT-48 meets RoHS compliance. Both components satisfy UL94 V-0 flammability requirements and unlimited moisture sensitivity classification.

Selection of the CDM-48 for replacement applications eliminates obsolescence risk while maintaining full functional and dimensional compatibility with existing installations and specifications.

Frequently Asked Questions (FAQ)

Q: Can the CDM-48 be used as a direct replacement for the CT-48 in existing installations?

A: Yes. The CDM-48 provides direct substitution for the CT-48. All electrical ratings (30A, 600V), mechanical dimensions (48 circuits, 0.546" pitch), termination methods (screw top, closed bottom), and environmental specifications (130°C operating temperature, UL94 V-0) are identical between the two components.

Q: What is the primary reason to transition from CT-48 to CDM-48?

A: The CT-48 is classified as obsolete. The CDM-48 is an active product from the same manufacturer, ensuring continued availability, supply chain support, and compliance with current regulatory standards.

Q: Are there any packaging differences between CT-48 and CDM-48?

A: The CT-48 packaging specification is not provided in the available data. The CDM-48 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both components meet the same compliance standards?

A: Both the CT-48 and CDM-48 meet UL94 V-0 flammability requirements and carry unlimited moisture sensitivity classification (MSL 1). The CDM-48 meets ROHS3 compliance, while the CT-48 meets RoHS compliance. Both are REACH unaffected and classified under ECCN EAR99.

Q: Are the wire gauge and termination specifications identical?

A: Yes. Both components accept 10-22 AWG wire, feature screw-type top termination, and closed bottom termination. The dual-wall barrier construction and flange with marking strip features are identical.