Thomas & Betts 4411S7 Explosion-Proof Tumbler Switch

Description:

The Thomas & Betts Russellstoll 4411S7 Explosion-Proof Tumbler Switch is used to control lighting, motor, and branch power circuits in hazardous industrial locations. Commonly installed in chemical plants, refineries, oil and gas facilities, grain processing plants, and other Class I and Class II hazardous environments, this single-pole, single-throw (SPST) switch is housed in a rugged copper-free cast aluminum enclosure that provides explosion-proof and dust-tight protection. Maintenance teams and system integrators use this switch for repair, retrofit, expansion, and replacement of hazardous-location electrical control systems.

Applications:

The Thomas & Betts Russellstoll 4411S7 is designed for switching lighting circuits, machinery, pumps, motors, and industrial equipment in areas where flammable gases, vapors, or combustible dust may be present. It is suitable for use with Russellstoll hazardous-location receptacles and is widely used in petrochemical plants, fuel loading terminals, wastewater treatment facilities, mining operations, and other industrial environments requiring explosion-proof electrical equipment. 

Technical Specifications:

• Manufacturer Part Number (MPN): 4411S7 (E52)
• Brand: Thomas & Betts (ABB) – Russellstoll®
• Product Type: Explosion-Proof Tumbler Switch
• Series: EFS Hazardous Location Switches
• Switch Type: Single Pole, Single Throw (SPST)
• Current Rating: 15 A
• Voltage Rating: 20 A at 575 VAC enclosure series / 15 A switching capacity (1.5 HP at 115 V, 2 HP at 230 V)
• Enclosure Material: Copper-Free Cast Aluminum
• Finish: Epoxy Powder-Coated
• Mounting: Surface Mount
• Conduit Entries: Standard 3/4 in. NPT (unless otherwise specified)
• Environmental Protection: Explosion-Proof, Dust-Tight
• Hazardous Location Classification: Class I, Division 1, Groups C & D; Class II, Groups E, F & G
• Locking Option: Available with lockable cover (suffix "L")
• Features: Heavy-duty tumbler mechanism, corrosion-resistant enclosure, flame-path construction, field-serviceable design, compatible with Russellstoll hazardous-location systems
• Certifications: UL 844 Listed (File E10765), CSA Certified
• Typical Applications: Chemical Plants, Petrochemical Facilities, Refineries, Grain Handling, Mining, Wastewater Treatment, Fuel Loading Racks, Industrial Processing Facilities

Common Replacements:

• Thomas & Betts Russellstoll 4411S27
• Thomas & Betts Russellstoll 4411S3
• Thomas & Betts Russellstoll 4421S7