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QR64K - QR Circuit Breaker 64A 600V AC

United Fuses
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The QR64K Circuit Breaker is a molded case circuit breaker designed for overcurrent and short-circuit protection in industrial power distribution systems. It is rated for a maximum voltage of 600V AC and a current rating of 64 amps, with an AIC rating suitable for high-fault applications. This unit features a compact frame size, weighs 5.19 lb, and is constructed with a QR-type mechanism for reliable trip performance. It complies with UL 489 standards for safety and performance, ensuring robust protection in demanding environments. Typical applications include panelboards, switchboards, and motor control centers requiring branch circuit protection.

Key Features & Specifications
  • Type: Molded case circuit breaker, QR family, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 64 A
  • Dimensions: Standard QR frame size
  • Standards: UL 489, CSA certified
  • Applications: Industrial panelboards, switchboards, motor control centers
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard QR packaging
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 64 A
  • AIC rating: 10 kA at 600V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Manual switching and automatic trip
  • Frame Size: QR
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial
  • Breaker Type: QR
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Steel and copper
  • Panel Style: Standard
  • Bus Type: Not applicable
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • 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 applicable
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 64 A
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 64 A
  • Full Load Amp Minimum: 64 A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 64 A
  • Amperage Minimum: 64 A
  • Nema Rating: Not applicable
  • Switch Style: Toggle
  • Wire Size: #14 to #2 AWG
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Panel
  • Terminal Connection: Lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA
  • Compatible Frames: QR, HQR Circuit Breakers
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QR
  • Current Rating: 64 A
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available