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Thomas & Betts JJR - Class J Fuse 600V 1-600A Time-Delay

Blackburn
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Thomas & Betts JJR is a dual-element, time-delay fuse designed for motor and transformer protection. It is rated for 600 volts AC/DC and carries a current rating of 1 to 600 amperes, featuring a compact, cylindrical construction with ferrule or blade terminals. This fuse complies with UL 248-12 and CSA standards, providing Class J performance for high interrupting capacity. Typical industrial applications include protecting motor circuits, transformers, and general-purpose branch circuits in panelboards and switchboards.

Key Features & Specifications
  • Type: Dual-element, time-delay, Class J fuse
  • Voltage Rating: 600 VAC/VDC
  • Current Rating: 1 to 600 A
  • Dimensions: Varies by amperage; ferrule or blade terminal
  • Standards: UL 248-12, CSA C22.2 No. 248.12
  • Applications: Motor circuits, transformers, branch circuit protection
  • Switch Type: N/A
  • Configuration: Single-pole
  • Coil Voltage Maximum: N/A
  • Temp Rating: 80°C maximum ambient
  • Shipping Dimensions: 6 x 4 x 4 inches (approx.)
  • Phase: Single
  • Voltage: 600 V
  • Amperage: 1 to 600 A
  • AIC rating: 200,000 A RMS symmetrical
  • Connection: Ferrule or blade
  • Poles: 1
  • Protection: Overcurrent, short-circuit
  • Functions: Time-delay, dual-element
  • Frame Size: N/A
  • Trip Type: Time-delay
  • Panel Type: N/A
  • Breaker Type: N/A
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: Copper alloy
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: J
  • Insulation Temperature: 80°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: J
  • Diameter: 0.81 to 1.06 inches (varies by amp)
  • Velocity: N/A
  • Clip Center: 2.0 to 3.0 inches (varies)
  • Clas: J
  • Mounting: Clip or bolt-on
  • Hz: 50/60
  • Coil Material: N/A
  • Horse Power: Up to 600 HP at 480 V
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 600 A
  • Amperage Minimum: 1 A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: N/A
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: N/A
  • Terminal Connection: Ferrule or blade
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single
  • Standards: UL 248-12, CSA C22.2
  • Compatible Frames: N/A
  • Installation Type: Clip or bolt-on
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: N/A
  • Current Rating: 1 to 600 A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 80°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 78378680111
  • GTIN: 00783786801114
  • Weight: 13 lb