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Eaton CHB-390 - Molded Case Circuit Breaker 90A 600V

Eaton
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Eaton CHB-390 is a molded case circuit breaker designed for overcurrent protection in industrial electrical systems. It is rated for 600V AC and 90A, providing reliable interruption of fault currents up to 65kA at 240V AC. The breaker features a compact, three-pole construction with a thermal-magnetic trip mechanism, weighing 0.9 lb, and is housed in a durable, insulated case for panelboard or loadcenter installation. It complies with UL 489 and CSA C22.2 standards, ensuring safe operation in commercial and light industrial applications. Typical uses include branch circuit protection in distribution panels, motor control centers, and switchboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Trip
  • Voltage Rating: 600V AC
  • Current Rating: 90A
  • Dimensions: Compact three-pole design
  • Standards: UL 489, CSA C22.2
  • Applications: Branch circuit protection, distribution panels, motor control centers
  • Switch Type: Thermal-Magnetic
  • Configuration: Three-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Not specified
  • Phase: Three-Phase
  • Voltage: 600V AC
  • Amperage: 90A
  • AIC rating: 65kA at 240V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Overload and short-circuit protection
  • Frame Size: CH
  • Trip Type: Thermal-Magnetic
  • Panel Type: Panelboard/Loadcenter
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Copper/Steel
  • Panel Style: Industrial
  • 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: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 90A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 90A
  • Full Load Amp Minimum: 90A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 90A
  • Amperage Minimum: 90A
  • Nema Rating: Not specified
  • Switch Style: Thermal-Magnetic
  • Wire Size: Not specified
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel mount
  • Terminal Connection: Line/Load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: CH series
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: CH
  • Current Rating: 90A
  • 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: Not specified
  • GTIN: Not specified