Overview
The Appleton SNTC-250 is a 2-1/2″ steel set screw connector engineered for reliable termination of threadless rigid and IMC conduit to electrical enclosures and junction boxes. This connector features concrete-tight construction and meets UL 514B and NEMA FB-1 standards. The set screw design provides secure, tool-free installation without threading requirements. This box includes two SNTC-250 units with CPL6S coupling components.
Key Features
- Set screw design for quick, tool-free installation on threadless rigid/IMC conduit
- Concrete tight construction ensures weather-resistant sealing in harsh environments
- Malleable iron or steel construction with zinc plating for corrosion resistance
- UL 514B and NEMA FB-1 certified for safety and reliability
- 2-1/2 inch trade size for standard industrial conduit applications
- Includes CPL6S coupling for complete conduit assembly
Technical Specifications
- Manufacturer: Appleton (Emerson Electric)
- Part Number: SNTC-250
- Trade Size: 2-1/2 inch
- Material: Malleable iron with zinc plating or steel
- Connection Type: Set screw, threadless
- Sealing Type: Concrete tight
- Applicable Standard: UL 514B, NEMA FB-1
- Application: Threadless rigid conduit and IMC conduit
- Quantity: Box of 2 with CPL6S coupling
- Condition: New in Box
Typical Applications
The SNTC-250 is ideal for electrical installations requiring secure conduit termination, including:
- Industrial electrical control panels and motor control centers
- Outdoor electrical enclosures in wet/corrosive environments (concrete tight sealing)
- Factory automation and machinery control circuits
- Building automation and HVAC electrical systems
- Commercial and industrial construction where threadless conduit is specified
Compatibility & Replacements
Compatible With
- 2-1/2″ threadless rigid conduit (RMC)
- 2-1/2″ intermediate metal conduit (IMC)
- Standard electrical enclosures with knockout holes
- Junction boxes and pull boxes rated for 2-1/2″ conduit
- Appleton CPL6S coupling and related fittings
Replaces / Drop-In Replacement For
- Appleton SNTC-250 (original equipment)
- Other manufacturers’ 2-1/2″ set screw connectors (verify dimension compatibility before ordering)
Works With
- UL 514B certified electrical systems
- NEMA FB-1 standard conduit installations
- Rigid metal conduit (RMC) and intermediate metal conduit (IMC) assemblies
- Appleton coupling and offset fitting accessories
