ABB LT450SC - Safety Switch 400A 600V NEMA 4X
ABB LT450SC - Safety Switch 400A 600V NEMA 4X

ABB LT450SC - Safety Switch 400A 600V NEMA 4X

Steel City
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ABB Steel City LT450SC is a heavy-duty industrial safety switch designed for reliable circuit disconnection and equipment protection in demanding environments. This unit is rated for 600V AC and 400A continuous current, featuring a NEMA 4X stainless steel enclosure for corrosion resistance in harsh locations. The switch complies with UL 98 and CSA C22.2 standards, ensuring robust performance in industrial applications such as motor control centers, panelboards, and machinery isolation.

Key Features & Specifications
  • Type: Heavy-duty safety switch, non-fusible, 3-pole, 3-wire
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Enclosure: NEMA 4X stainless steel, rain-tight and corrosion-resistant
  • Standards: UL 98, CSA C22.2
  • Applications: Motor control, panelboard disconnects, industrial machinery
  • Switch Type: Non-fusible, heavy-duty
  • Configuration: 3-pole, 3-wire
  • Coil Voltage Maximum: Not applicable (manual switch)
  • Temp Rating: -20°C to 40°C
  • Shipping Dimensions: 27 lb weight
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 400A
  • AIC rating: 100kA at 600V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent protection via upstream device
  • Functions: Disconnect, isolation
  • Frame Size: 400A frame
  • 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: 500 MCM max
  • 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 Hz
  • Coil Material: Not applicable
  • Horse Power: 100 HP at 600V
  • Aux Contacts: 1 N.O. + 1 N.C.
  • CPT: Not included
  • Full Load Amps: 400A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 400A
  • Full Load Amp Minimum: 0A
  • Enclosure: NEMA 4X
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper/Aluminum
  • Amperage Maximum: 400A
  • Amperage Minimum: 0A
  • Nema Rating: 4X
  • Switch Style: Heavy-duty
  • Wire Size: 500 MCM max
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Not applicable
  • Terminal Connection: Lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 98, CSA C22.2
  • Compatible Frames: 400A frame
  • Installation Type: Surface mount
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Not applicable
  • Current Rating: 400A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78599108558
  • GTIN: 00785991085587