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Westinghouse 1773500 - KL Series 400A 2-Pole Breaker

Westinghouse
Price
Save $-1,200.25
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The Westinghouse KL Series 1773500 is a 2-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 400A continuous current at 600VAC, with an interrupting capacity of 22kA at 480VAC, and provides LI (Long-Time and Instantaneous) protection via a thermal-magnetic trip mechanism. This bolt-on breaker weighs 45 lb and is constructed for single-phase applications, featuring a compact frame suitable for panelboard or switchboard installation. It complies with applicable UL and NEMA standards for industrial circuit protection. Typical applications include feeder protection in manufacturing plants, commercial buildings, and heavy machinery.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, KL Series
  • Voltage Rating: 600V
  • Current Rating: 400A
  • Poles: 2
  • Phase: 1
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC rating: 22kA@480V
  • Weight: 45 lb
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single Phase
  • Standards: UL 489, NEMA AB1
  • Installation Type: Panelboard/Switchboard
  • Breaker Frame: KL
  • Trip Type: Thermal Magnetic
  • Panel Type: Industrial
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Steel
  • Panel Style: NEMA 1
  • 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: Bolt-On
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 400A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 400A
  • Full Load Amp Minimum: 400A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Coil Voltage Maximum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 400A
  • Amperage Minimum: 400A
  • Nema Rating: NEMA 1
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single Phase
  • Standards: UL 489, NEMA AB1
  • Compatible Frames: KL
  • Installation Type: Panelboard/Switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: KL
  • 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
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