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Cutler Hammer KES3250LSIGZG - 250A 3-Pole LSIG Breaker (600V AC)

Cutler Hammer
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Cutler Hammer KES3250LSIGZG is a molded case circuit breaker designed for overcurrent and short-circuit protection in industrial power distribution systems. It is rated for 250A at 600V AC, with a 65kAIC at 480V AC, and features a solid-state trip unit with LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault) protection functions. The breaker has a three-pole configuration, measures 11 inches in depth, 5.7 inches in height, and 5.5 inches in width, weighing 4.4 lb, and is constructed with a metal frame and line/load lug connections. It complies with UL 489 and NEMA standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, switchboards, and panelboards in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, solid-state trip, LSIG protection
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 11 in x 5.7 in x 5.5 in (Length/Depth x Height x Width)
  • Standards: UL 489, NEMA
  • Applications: Motor control centers, switchboards, panelboards
  • Switch Type: Circuit breaker
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C
  • Shipping Dimensions: 11 in x 5.7 in x 5.5 in
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 250A
  • AIC rating: 65kA at 480V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Functions: Overcurrent, short-circuit, ground fault
  • Frame Size: KES
  • Trip Type: Solid-state
  • Panel Type: Not specified
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Steel
  • Panel Style: Not specified
  • Bus Type: Not specified
  • 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: Fixed
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: 250A
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: 250A
  • Full Load Amp Minimum: Not specified
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 250A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, NEMA
  • Compatible Frames: KES
  • Installation Type: Panelboard or switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: KES
  • Current Rating: 250A
  • 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: 078668576126