Marrette 10-417 Hi-7 Porcelain Wire Connector Overview
The Marrette 10-417 is a springless porcelain extreme high-temperature wire connector engineered for furnace, oven, and intense heat applications. Built from hardened porcelain material, this connector maintains structural integrity in environments reaching 645°C (1200°F)—the highest operating temperature in the Marrette family.
Key Features
- Extreme temperature rating: Rated for high temperature furnace/oven or other intense heat applications up to 645°C (1200°F)
- Springless design: Inner surface of cap threaded to secure conductors with the same efficiency as a spring
- Deep wide throat: Ensures full insulation coverage and safe wire entry
- Voltage rated: Approved for circuits up to 300V
- UL and CSA certified: U.L. Listed and CSA Certified
- Funneled entry design: Helps wires into threaded compression compartment for secure grip
Technical Specifications
- Wire range: 2 #18 minimum, 4 #16 maximum
- Wire type: Stranded copper or aluminum
- Material: Hardened porcelain
- Voltage rating: 300 VAC
- Maximum temperature: 645°C (1200°F)
- Color: White
- Design: Springless with grooved inner threads
- Certifications: UL 486C, CSA LR6541/6591
Typical Applications
- Industrial furnace and oven wiring
- High-temperature kiln and heat-treat equipment
- Aerospace and defense thermal management
- Laboratory oven and incubator connections
- Fire test chamber installations
- Process heating equipment
Compatibility & Replacements
Compatible With
- Furnace and oven control systems rated for 300V
- Stranded copper and aluminum conductors 18–14 AWG
- Circuits requiring extreme high-temperature connections
- Industrial electrical equipment and wire termination systems
Replaces / Drop-In Replacement For
- 10-407 (100-unit package) — directly compatible in identical application scenarios
- 10-427 (5000-unit package) — same Hi-7 specification in bulk format
Works With
- ABB/Marrette® wire termination systems and kits
- Thomas & Betts (T&B®) high-temperature connector families
- Extreme high-temperature electrical installations and repair work
