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CT-44 Equivalent & Substitute Parts Reference
Part Overview
The CT-44 is a 44-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications requiring high-density terminal connectivity. 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-44 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for applications currently utilizing this connector in production or maintenance scenarios.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CT-44 |
| Manufacturer | Curtis Industries |
| Category | Terminal Blocks |
| Terminal Block Type | Barrier Block |
| Number of Circuits | 44 |
| Pitch | 0.546" (13.86mm) |
| Current Rating | 30A |
| Voltage Rating | 600V |
| Wire Gauge | 10-22 AWG |
| Top Termination | Screws |
| Barrier Type | 2 Wall (Dual) |
| Operating Temperature | 130°C |
| Material - Insulation | Polyester Thermoplastic |
| Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the CT-44 is determined by strict equivalence across the following critical parameters:
- Number of circuits: 44
- 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 type: 2 Wall (Dual)
- Operating temperature: 130°C minimum
- Insulation material: Polyester Thermoplastic
- Flammability rating: UL94 V-0
The CDM-44 meets all substitution criteria as a direct functional equivalent with identical electrical and mechanical specifications.
Parameter Comparison
| Parameter | CT-44 (Main Part) | CDM-44 (Substitute) |
|---|---|---|
| Manufacturer | Curtis Industries | Curtis Industries |
| Terminal Block Type | Barrier Block | Barrier Block |
| Number of Circuits | 44 | 44 |
| Number of Wire Entries | 88 | 88 |
| Pitch | 0.546" (13.86mm) | 0.546" (13.86mm) |
| Number of Rows | 2 | 2 |
| Current Rating (Amps) | 30A | 30A |
| Voltage Rating | 600V | 600V |
| Wire Gauge | 10-22 AWG | 10-22 AWG |
| Top Termination | Screws | Screws |
| Bottom Termination | Closed | Closed |
| Barrier Type | 2 Wall (Dual) | 2 Wall (Dual) |
| Features | Flange, Marking Strip | Flange, Marking Strip |
| Mounting Type | Chassis, Panel | Chassis, Panel |
| Operating Temperature | 130°C | 130°C |
| Material - Insulation | Polyester Thermoplastic | Polyester Thermoplastic |
| Flammability Rating | UL94 V-0 | UL94 V-0 |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8536.90.4000 | 8536.90.4000 |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The CDM-44 is the direct substitute for the CT-44. Both components are manufactured by Curtis Industries and maintain identical electrical and mechanical specifications across all critical parameters. The CDM-44 carries active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete CT-44.
The CDM-44 meets ROHS3 compliance, representing an updated regulatory status relative to the CT-44's RoHS Compliant designation. Both components maintain REACH Unaffected status and identical export classification under ECCN EAR99. The substitution presents no compliance or certification barriers for applications currently specified with the CT-44.
Frequently Asked Questions (FAQ)
Q: Can the CDM-44 be used as a direct replacement for the CT-44 in existing applications?
A: Yes. The CDM-44 meets all electrical and mechanical specifications of the CT-44, including circuit count, pitch spacing, current and voltage ratings, wire gauge compatibility, termination method, and operating temperature range. Physical mounting and terminal connectivity are identical.
Q: What is the primary difference between the CT-44 and CDM-44?
A: The CT-44 is obsolete while the CDM-44 carries active product status. The CDM-44 also reflects updated RoHS3 compliance versus the CT-44's RoHS Compliant designation. All functional and electrical parameters remain equivalent.
Q: Are there packaging differences between these parts?
A: The CT-44 packaging specification is not provided in the available data. The CDM-44 is supplied in bulk packaging. Confirm packaging requirements for your application before procurement.
Q: Do both parts meet the same regulatory and compliance standards?
A: Both components maintain UL94 V-0 flammability rating, REACH Unaffected status, and EAR99 export classification. The CDM-44 reflects ROHS3 compliance while the CT-44 carries RoHS Compliant designation. Both meet MSL 1 (Unlimited) moisture sensitivity requirements.
Q: What inventory status should I expect for each part?
A: The CT-44 has 1,080 pieces listed as new original in stock. The CDM-44 has 910 pieces listed as new original in stock. Verify current availability with your supplier before finalizing procurement decisions.
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