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Allen-Bradley 1492J4B - Class J 4A 600V Fuse (Motor Control)

Allen-Bradley
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Allen-Bradley 1492J4B is a miniature motor control circuit protector fuse designed for branch circuit protection in industrial motor control applications. This 600V AC-rated, 4-amp fuse provides reliable overcurrent protection with a high interrupting capacity of 200,000 amps RMS symmetrical, ensuring safety in high-fault-current environments. The compact, 0.02 lb ferrule-style construction allows for easy installation in standard fuse blocks and disconnect switches, with dimensions optimized for space-constrained control panels. It complies with UL 248-14 and CSA C22.2 No. 248.14 standards for Class J fuses, offering current-limiting performance that reduces let-through energy during short circuits. Typical applications include protection of motor starters, contactors, and control transformers in industrial automation systems, conveyor lines, and HVAC equipment.

Key Features & Specifications
  • Type: Class J, current-limiting, ferrule-style fuse for motor control circuit protection
  • Voltage Rating: 600V AC
  • Current Rating: 4 Amps
  • Dimensions: Compact ferrule design (standard 13/32" x 1-1/2")
  • Standards: UL 248-14, CSA C22.2 No. 248.14
  • Applications: Motor control centers, panelboards, industrial machinery, HVAC systems
  • Switch Type: N/A (fuse only)
  • Configuration: Single element, non-renewable
  • Coil Voltage Maximum: N/A
  • Temp Rating: Standard operating temperature range
  • Shipping Dimensions: Standard fuse packaging
  • Phase: Single-phase and three-phase compatible
  • Voltage: 600V AC maximum
  • Amperage: 4 Amps
  • AIC rating: 200,000 Amps RMS Symmetrical
  • Connection: Ferrule end caps
  • Poles: Single pole
  • Protection: Overcurrent and short-circuit
  • Functions: Current limiting, branch circuit protection
  • Frame Size: Miniature ferrule
  • Trip Type: Current-responsive element
  • Panel Type: N/A
  • Breaker Type: N/A (fuse)
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: Copper alloy, silver-plated contacts
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: J
  • Insulation Temperature: 75°C minimum
  • Inductance: N/A
  • Impedance: Low impedance design
  • Barrels: N/A
  • Class Rating: J
  • Diameter: 13/32 inch
  • Velocity: N/A
  • Clip Center: Standard 1-1/2 inch center
  • Clas: J
  • Mounting: Clip or block mount
  • Hz: 50/60 Hz
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: 4 Amps
  • Dist Voltage: 600V AC
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 4 Amps
  • Full Load Amp Minimum: 4 Amps
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 4 Amps
  • Amperage Minimum: 4 Amps
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: N/A
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: N/A
  • Terminal Connection: Ferrule
  • Frequency Rating: 50/60 Hz
  • Phase Connection: N/A
  • Standards: UL 248-14, CSA C22.2 No. 248.14
  • Compatible Frames: Standard Class J fuse blocks
  • Installation Type: Clip or block mount
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: N/A
  • Current Rating: 4 Amps
  • 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: 75°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 662073058038
  • GTIN: 00662073058038