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Square D 8998K401 - Disconnect Switch 600V 100A

Square D
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Square D 8998K401 is a heavy-duty industrial disconnect switch designed for reliable circuit isolation and safety lockout in high-power applications. This switch is rated for 600V AC and 100A continuous current, providing robust protection for motors and machinery. Constructed with a NEMA 4X stainless steel enclosure, it measures approximately 8.5 x 6.5 x 4.5 inches and weighs 5.19 lb, ensuring durability in harsh environments. It complies with UL 98 and CSA standards, making it suitable for use in industrial control panels and manufacturing facilities. Typical applications include motor disconnects, machine tool isolation, and power distribution in factories and processing plants.

Key Features & Specifications
  • Type: Heavy-duty disconnect switch, non-fusible, maintained or momentary operation
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: 8.5 x 6.5 x 4.5 inches
  • Standards: UL 98, CSA
  • Applications: Motor disconnects, machine tool isolation, power distribution
  • Switch Type: Non-fusible disconnect
  • Configuration: 3-pole, 3-phase
  • Coil Voltage Maximum: Not applicable (manual switch)
  • Temp Rating: -20°C to 60°C
  • Shipping Dimensions: 10 x 8 x 6 inches
  • Phase: 3
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 10kA at 600V
  • Connection: Screw terminals
  • Poles: 3
  • Protection: Overload and short-circuit (with external fuse)
  • Functions: On/Off, lockout
  • Frame Size: 100A
  • Trip Type: Not applicable (non-fusible)
  • Panel Type: NEMA 4X
  • Breaker Type: Not applicable
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Stainless steel
  • Panel Style: Surface mount
  • Bus Type: Copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Surface
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: 50 HP at 480V
  • Aux Contacts: 1 NO/NC
  • CPT: Not included
  • Full Load Amps: 100A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 0A
  • Enclosure: NEMA 4X stainless steel
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: 14 AWG to 2 AWG
  • Amperage Maximum: 100A
  • Amperage Minimum: 0A
  • Nema Rating: 4X
  • Switch Style: Rotary handle
  • Wire Size: 14 AWG to 2 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Not applicable
  • Terminal Connection: Screw
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-wire
  • Standards: UL 98, CSA C22.2
  • Compatible Frames: Not applicable
  • Installation Type: Surface mount
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Not applicable
  • Current Rating: 100A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 60°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 785901899638
  • GTIN: 00785901899638