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Thomas & Betts 3902BU - Fused Safety Switch 30A 600V

Thomas & Betts
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The Thomas & Betts 3902BU is a heavy-duty, 30-amp, 600-volt AC, 2-pole, 3-wire fused safety switch designed for reliable circuit disconnection and overcurrent protection in industrial environments. It features a NEMA 3R rainproof enclosure constructed from galvanized steel, ensuring durability in outdoor and wet locations, and operates with a visible-blade design for a positive disconnect indication. This switch complies with UL 98 and CSA standards, meeting rigorous safety requirements for commercial and industrial applications. It is typically used for motor control, lighting systems, and general branch circuit protection in manufacturing facilities, warehouses, and utility installations.

Key Features & Specifications
  • Type: Heavy-duty, 30-amp, 600-volt AC, 2-pole, 3-wire fused safety switch with visible blades
  • Voltage Rating: 600 V AC
  • Current Rating: 30 A
  • Enclosure: NEMA 3R, galvanized steel, rainproof
  • Standards: UL 98, CSA certified
  • Applications: Motor control, lighting systems, branch circuit protection in industrial and commercial settings
  • Switch Type: Fused safety switch
  • Configuration: 2-pole, 3-wire
  • Poles: 2
  • Phase: 1-phase or 3-phase compatible
  • Connection: Wire
  • Mounting: Surface mount
  • Weight: 14.25 lb


Product Identification
  • UPC: 78621080577
  • GTIN: 00786210805771