Thomas & Betts 4466 Explosion-Proof Plug

Description:

The Thomas & Betts 4466 Explosion-Proof Plug is used to provide a safe and secure electrical connection for 20 Amp, 125/250 VAC, 2-pole, 3-wire power circuits in hazardous locations. Commonly installed in oil and gas facilities, chemical plants, refineries, grain processing plants, and other industrial environments with explosive atmospheres, this Type EFS delayed-action pin-and-sleeve plug features a rugged copper-free cast aluminum housing that ensures reliable operation under harsh conditions. Maintenance teams and system integrators use this plug for repair, retrofit, expansion, and replacement of hazardous-location power connections. 

Applications:

The Thomas & Betts 4466 is designed for connecting portable motors, pumps, lighting systems, generators, compressors, and other industrial equipment in Class I, Division 1 hazardous locations. Its delayed-action mechanism ensures the electrical circuit is broken before plug disengagement, minimizing arcing and enhancing operator safety. The plug is suitable for industrial, petrochemical, mining, marine, and utility applications requiring explosion-proof power connections.

Technical Specifications:

• Manufacturer Part Number (MPN): 4466
• Brand: Thomas & Betts (ABB) – Russellstoll®
• Product Type: Explosion-Proof Pin & Sleeve Plug
• Series: Type EFS Hazardous Locations
• Current Rating: 20 A
• Voltage Rating: 125/250 VAC
• Frequency: 60 Hz
• Number of Poles: 2
• Number of Wires: 3 (2P3W)
• Housing Material: Copper-Free Cast Aluminum
• Cable Hole Diameter: 9/16 in.
• Connection Type: Delayed-Action Plug
• Contact Type: Pin & Sleeve
• Environmental Rating: Explosion-Proof, Dust-Ignition Proof
• Hazardous Location Classification: Class I, Division 1, Groups C & D
• Features: Delayed-action disconnect mechanism, grounding pole engages first and disengages last, corrosion-resistant housing, heavy-duty industrial construction, designed to prevent accidental disconnection under load
• Standards: UL Listed (UL File E10919)
• Typical Applications: Oil & Gas Facilities, Chemical Processing Plants, Refineries, Grain Handling Facilities, Mining Operations, Marine Installations, Industrial Manufacturing, Utility Power Distribution

Common Replacements:

• Thomas & Betts Russellstoll 4445
• Thomas & Betts Russellstoll 4467
• Appleton CPP516