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CT-46 Equivalent & Substitute Parts Reference
Part Overview
The CT-46 is a 46-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 and operates at 600V with a 30A current rating per circuit.
The CT-46 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for replacement, repair, and new installations where this connector type is specified.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CT-46 |
| Manufacturer | Curtis Industries |
| Category | Terminal Blocks |
| Terminal Block Type | Barrier Block |
| Number of Circuits | 46 |
| 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 |
| Mounting Type | Chassis, Panel |
Substitute Part Grouping Explanation
Substitution eligibility for the CT-46 is determined by strict equivalence across the following critical parameters:
- Terminal block type (Barrier Block)
- Number of circuits (46)
- Pitch spacing (0.546" / 13.86mm)
- Current rating (30A minimum)
- Voltage rating (600V minimum)
- Wire gauge compatibility (10-22 AWG)
- Termination method (Screw top termination)
- Barrier construction (2 Wall / Dual)
- Operating temperature range (130°C minimum)
- Insulation material (Polyester Thermoplastic)
- Flammability rating (UL94 V-0)
- Mounting configuration (Chassis and Panel)
The CDM-46 meets all substitution criteria and is classified as an active product, providing direct functional and mechanical equivalence to the obsolete CT-46.
Parameter Comparison
| Parameter | CT-46 (Main Part) | CDM-46 (Substitute) |
|---|---|---|
| Manufacturer | Curtis Industries | Curtis Industries |
| Terminal Block Type | Barrier Block | Barrier Block |
| Number of Circuits | 46 | 46 |
| Number of Wire Entries | 92 | 92 |
| 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-46 is the direct equivalent substitute for the CT-46. Both components are manufactured by Curtis Industries and share identical electrical, mechanical, and environmental specifications across all critical parameters.
The CDM-46 holds active product status, ensuring ongoing availability and supply chain continuity. The CDM-46 maintains full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Both components carry UL94 V-0 flammability certification and unlimited moisture sensitivity rating, confirming suitability for industrial applications.
Selection of the CDM-46 for CT-46 replacement applications presents no functional or compatibility constraints.
Frequently Asked Questions (FAQ)
Q: Can the CDM-46 be used as a direct replacement for the CT-46?
A: Yes. The CDM-46 is functionally and mechanically equivalent to the CT-46 across all specified parameters, including circuit count, pitch, current and voltage ratings, termination method, and environmental specifications.
Q: What is the primary difference between the CT-46 and CDM-46?
A: The CT-46 is classified as obsolete, while the CDM-46 is an active product. Both components are manufactured by Curtis Industries and share identical electrical and mechanical characteristics.
Q: Are there packaging differences between these parts?
A: The CT-46 packaging specification is not provided in the available data. The CDM-46 is supplied in bulk packaging. Confirm packaging requirements for your application.
Q: Do both parts meet current compliance standards?
A: Both the CT-46 and CDM-46 are RoHS compliant, REACH unaffected, and carry UL94 V-0 flammability certification. The CDM-46 specifically carries ROHS3 compliance designation.
Q: What wire gauges are compatible with these connectors?
A: Both the CT-46 and CDM-46 accept wire gauges from 10 AWG to 22 AWG.
Q: Are these components suitable for high-temperature applications?
A: Both components are rated for continuous operation at 130°C maximum, suitable for industrial and chassis-mounted applications within this temperature range.
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