Steel City® Set-Screw Connector, Zinc Plated Steel, EMT Conduit, Insulated, 3 in.
$2,353.87Priced per 100.Call (888) 270-6055 to confirm pricing and inventory.
The Steel City® TC718A is a 3 inch insulated set-screw connector for joining EMT conduit to electrical boxes and enclosures. Zinc plated steel construction with an insulated throat, UL Listed (E-16592) and CSA Certified (LR-12798). Concrete-tight when taped. Sold as 100 ea.
Steel City® Set-Screw Connecto...
$2,353.87Priced per 100.Call (888) 270-6055 to confirm pricing and inventory.
Steel City® TC718A — 3 in. Insulated EMT Set-Screw Connector
The Steel City® TC718A set-screw connector is engineered for fast, reliable attachment of 3 inch EMT conduit to electrical enclosures, boxes, and knockout entries. Part of the TC-700 insulated series by ABB Installation Products (formerly Thomas & Betts), these connectors deliver proven performance in commercial, industrial, and residential electrical installations.
Key Features
- Steel construction for strength and long-term durability
- Zinc plated finish for corrosion protection
- Set-screw connection for secure, tool-assisted conduit engagement
- Insulated throat protects wire insulation at the conduit entry point
- Concrete-tight when taped — suitable for cast-in-place concrete installations
- For use in dry and wet locations (insulated TC-7XX series)
- 3 – 8 npsm threaded entry for standard knockout entries
Certifications & Standards
- UL Listed — File No. E-16592 (½” – 4″)
- CSA Certified — File No. LR-12798 (½” – 4″)
- Approved for concrete-tight applications
- Must be installed per applicable national and local electrical codes (NEC)
Dimensions (TC-718A / TC-118A)
| Conduit Size | A (in.) | B (in.) | C (in.) | Thread |
|---|---|---|---|---|
| 3 in. | 3.66 | 3.53 | 4.01 | 3 – 8 npsm |
Applications
- EMT conduit connections to electrical enclosures and outlet boxes
- Knockout and threaded entry installations
- Indoor and outdoor (wet location) use
- Concrete-tight cast-in-place installations when taped
- Commercial and residential wiring systems
Product Details
| Manufacturer | ABB Installation Products (Steel City® brand) |
|---|---|
| Manufacturer Part No. | TC718A |
| Graybar SKU | 22052488 |
| UPC | 78599102535 |
| Material | Zinc Plated Steel |
| Connection Type | Set-Screw |
| Conduit Type | EMT (Electrical Metallic Tubing) |
| Conduit Size | 3 in. |
| Throat | Insulated |
| Unit of Measure | Box of 100 ea. |
| Country of Origin | China |
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