CT-25 Equivalent & Substitute Parts Reference

Part Overview

The CT-25 is a 25-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications requiring high-current distribution. This component features dual-wall barrier construction with screw termination on top and closed termination on the bottom, rated for 30A at 600V with wire gauge compatibility from 10-22 AWG.

The CT-25 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain system functionality in applications where original inventory is depleted or long-term supply continuity cannot be assured.

Substiute Parts

CT-25

Curtis IndustriesIn Stock: 1043CT-25 Datasheet

Current PartRFQ

CDM-25

Curtis IndustriesIn Stock: 850CDM-25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-25 is determined by strict equivalence across the following critical parameters:

• Number of circuits: 25
• Pitch spacing: 0.546" (13.86mm)
• Current rating: 30A minimum
• Voltage rating: 600V minimum
• Wire gauge compatibility: 10-22 AWG
• Termination type: Screw top, closed bottom
• Barrier construction: Dual-wall configuration
• Mounting capability: Chassis and panel mounting
• Operating temperature: 130°C minimum
• Insulation material: Polyester thermoplastic
• Flammability compliance: UL94 V-0

The CDM-25 meets all specified parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The CDM-25 is a direct functional equivalent to the CT-25 across all electrical and mechanical parameters. The primary distinction is product status: the CT-25 is obsolete while the CDM-25 is active, ensuring ongoing availability and supply chain continuity.

Both parts maintain identical compliance certifications including UL94 V-0 flammability rating, RoHS compliance, and REACH unaffected status. The CDM-25 carries ROHS3 compliance, representing current regulatory alignment. Both components are classified as MSL 1 (Unlimited moisture sensitivity), eliminating storage and handling constraints.

For new designs or replacement applications, the CDM-25 is the appropriate selection due to active product status and equivalent performance specifications.

Frequently Asked Questions (FAQ)

Q: Can the CDM-25 replace the CT-25 in existing installations?

A: Yes. The CDM-25 meets all electrical and mechanical specifications of the CT-25, including circuit count, pitch spacing, current and voltage ratings, wire gauge compatibility, termination configuration, and operating temperature range.

Q: What is the primary reason to substitute the CT-25?

A: The CT-25 carries obsolete product status. The CDM-25 is an active product from the same manufacturer with identical functional specifications, ensuring long-term supply availability.

Q: Are there packaging differences between CT-25 and CDM-25?

A: The CT-25 packaging specification is not provided. The CDM-25 is supplied in bulk packaging. Verify packaging requirements for your application.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the CT-25 and CDM-25 are UL94 V-0 rated, RoHS compliant, and REACH unaffected. The CDM-25 additionally carries ROHS3 compliance.

Q: Are there any differences in mounting or installation?

A: No. Both parts support identical chassis and panel mounting configurations with the same flange and marking strip features.