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CT-36 Equivalent & Substitute Parts
Part Overview
The CT-36 is a 36-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications. This terminal block features dual-wall barrier construction with screw termination on the top and closed termination on the bottom. The part is classified as obsolete, making identification of equivalent substitute components essential for ongoing maintenance, repair, and system continuity in applications requiring 36-circuit barrier block connectors with 0.546" pitch spacing.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CT-36 |
| Manufacturer | Curtis Industries |
| Category | Terminal Blocks |
| Terminal Block Type | Barrier Block |
| Number of Circuits | 36 |
| Pitch | 0.546" (13.86mm) |
| Current Rating | 30A |
| Voltage Rating | 600V |
| Wire Gauge | 10-22 AWG |
| Top Termination | Screws |
| Barrier Type | 2 Wall (Dual) |
| Mounting Type | Chassis, Panel |
| Operating Temperature | 130°C |
| Material - Insulation | Polyester Thermoplastic |
| Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
The CDM-36 qualifies as a direct substitute for the CT-36 based on strict equivalence across all critical electrical and mechanical parameters. Substitution is valid when the following parameters match identically:
- Number of circuits: 36
- Pitch spacing: 0.546" (13.86mm)
- Current rating: 30A
- Voltage rating: 600V
- Wire gauge range: 10-22 AWG
- Top termination method: Screws
- Bottom termination: Closed
- Barrier type: 2 Wall (Dual)
- Mounting type: Chassis, Panel
- Operating temperature: 130°C
- Insulation material: Polyester Thermoplastic
- Flammability rating: UL94 V-0
The CDM-36 maintains full compatibility with the CT-36 across all specified parameters. The primary distinction is product status: CT-36 is obsolete while CDM-36 is active, making CDM-36 the appropriate selection for new applications and ongoing supply requirements.
Parameter Comparison
| Parameter | CT-36 (Main Part) | CDM-36 (Substitute) | Match Status |
|---|---|---|---|
| Manufacturer | Curtis Industries | Curtis Industries | Identical |
| Terminal Block Type | Barrier Block | Barrier Block | Identical |
| Number of Circuits | 36 | 36 | Identical |
| Number of Wire Entries | 72 | 72 | Identical |
| Pitch | 0.546" (13.86mm) | 0.546" (13.86mm) | Identical |
| Number of Rows | 2 | 2 | Identical |
| Current Rating (Amps) | 30A | 30A | Identical |
| Voltage Rating | 600V | 600V | Identical |
| Wire Gauge | 10-22 AWG | 10-22 AWG | Identical |
| Top Termination | Screws | Screws | Identical |
| Bottom Termination | Closed | Closed | Identical |
| Barrier Type | 2 Wall (Dual) | 2 Wall (Dual) | Identical |
| Features | Flange, Marking Strip | Flange, Marking Strip | Identical |
| Mounting Type | Chassis, Panel | Chassis, Panel | Identical |
| Operating Temperature | 130°C | 130°C | Identical |
| Material - Insulation | Polyester Thermoplastic | Polyester Thermoplastic | Identical |
| Flammability Rating | UL94 V-0 | UL94 V-0 | Identical |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Compatible |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| Product Status | Obsolete | Active | Different |
Engineering Selection Recommendations
The CDM-36 is the appropriate substitute for the CT-36 in all applications. Both components are manufactured by Curtis Industries and maintain identical electrical and mechanical specifications across all critical parameters. The CDM-36 carries active product status and meets ROHS3 compliance, providing superior supply chain availability compared to the obsolete CT-36. Both components satisfy UL94 V-0 flammability requirements and REACH compliance standards. Selection of CDM-36 ensures continuity of performance while enabling access to current manufacturing and inventory resources.
Frequently Asked Questions (FAQ)
Q: Can CDM-36 be used as a direct replacement for CT-36 in existing installations?
A: Yes. The CDM-36 matches all electrical and mechanical parameters of the CT-36, including circuit count, pitch spacing, current and voltage ratings, wire gauge compatibility, termination methods, and operating temperature range. Physical and electrical interchangeability is complete.
Q: What is the primary difference between CT-36 and CDM-36?
A: The CT-36 is classified as obsolete, while the CDM-36 is an active product. Both are manufactured by Curtis Industries with identical specifications. The CDM-36 represents the current production equivalent.
Q: Are there any compliance differences between the two parts?
A: Both components are RoHS compliant and REACH unaffected. The CDM-36 carries ROHS3 certification, which represents a more current compliance standard. Both maintain UL94 V-0 flammability ratings.
Q: Does packaging differ between CT-36 and CDM-36?
A: The CT-36 packaging specification is not provided. The CDM-36 is supplied in bulk packaging. Confirm packaging requirements for your application.
Q: Are the barrier block configurations identical?
A: Yes. Both parts feature 2-wall dual barrier construction with 36 circuits arranged in 2 rows at 0.546" pitch spacing. Screw termination is provided on the top with closed termination on the bottom. Both include flange and marking strip features.
Q: What wire gauges are supported?
A: Both CT-36 and CDM-36 accept wire gauges from 10 AWG to 22 AWG, with a maximum current rating of 30A at 600V.
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