Default product image

Thomas & Betts 3903BU - 30A 600V 3-Pole Fusible Switch

Thomas & Betts
Price
Save $348.34
/
Condition
  • Low stock - 1 item left
  • Backordered, shipping soon
Call for Price
The Thomas & Betts 3903BU is a heavy-duty, 3-pole, 600-volt AC, 30-amp fusible safety switch designed for industrial motor and load circuit protection. It features a NEMA 3R rainproof enclosure constructed from galvanized steel, providing reliable operation in outdoor and wet locations. This switch complies with UL 98 and NEMA standards, ensuring robust performance and safety in demanding environments. Typical applications include service entrance, feeder, and motor disconnect for commercial and industrial electrical systems.

Key Features & Specifications
  • Type: Fusible safety switch, heavy duty, NEMA 3R
  • Voltage Rating: 600 VAC
  • Current Rating: 30 A
  • Dimensions: Not specified
  • Standards: UL 98, NEMA 3R
  • Applications: Industrial motor disconnect, service entrance, feeder protection
  • Switch Type: Fusible
  • Configuration: 3-pole, 3-wire
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 3-phase
  • Voltage: 600 VAC
  • Amperage: 30 A
  • AIC rating: Not specified
  • Connection: Not specified
  • Poles: 3
  • Protection: Overcurrent
  • Functions: Disconnect, circuit protection
  • Frame Size: Not specified
  • Trip Type: Not applicable (fusible)
  • Panel Type: Not specified
  • Breaker Type: Not applicable
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Galvanized steel
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not specified
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Surface
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: NEMA 3R
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 30 A
  • Amperage Minimum: Not specified
  • Nema Rating: 3R
  • Switch Style: Heavy duty
  • Wire Size: Not specified
  • Certification: UL
  • Circuit Breaker Mounting Style: Not applicable
  • Terminal Connection: Not specified
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 98
  • Compatible Frames: Not specified
  • Installation Type: Surface
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Not applicable
  • Current Rating: 30 A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: Not specified
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


Product Identification
  • UPC: 78621080578
  • GTIN: 00786210805788