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AJT1-1/2N - Class J Time-Delay Fuse 1.5A 600V

United Fuses
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The AJT1-1/2N is a 1.5-amp, 600-volt AC/300-volt DC Class J time-delay fuse designed for branch circuit protection of motor circuits, transformers, and other inductive loads. It provides a 200,000-amp interrupting rating (AIC) to safely clear high-fault currents while its time-delay characteristic prevents nuisance openings from motor inrush. The fuse features a compact, rejection-style construction with a ferrule terminal connection and a 5.19 lb weight, ensuring secure mounting in standard Class J fuse holders. It complies with UL 248-8 and CSA standards for overcurrent protection in industrial control panels and distribution equipment. Typical applications include motor control centers, panelboards, and disconnect switches requiring high interrupting capacity and selective coordination.

Key Features & Specifications
  • Type: Class J time-delay fuse, ferrule terminal, rejection-style
  • Voltage Rating: 600 VAC / 300 VDC
  • Current Rating: 1.5 A
  • Interrupting Rating: 200 kA RMS Sym.
  • Weight: 5.19 lb
  • Standards: UL 248-8, CSA C22.2 No. 248.8
  • Applications: Motor circuits, transformers, lighting, general industrial overcurrent protection
  • Switch Type: N/A (fuse only)
  • Configuration: Single element, time-delay
  • Coil Voltage Maximum: N/A
  • Temp Rating: -40°C to +80°C
  • Shipping Dimensions: N/A
  • Phase: Single or three-phase compatible
  • Voltage: 600 VAC / 300 VDC
  • Amperage: 1.5 A
  • AIC rating: 200 kA
  • Connection: Ferrule
  • Poles: Single
  • Protection: Overcurrent, short-circuit
  • Functions: Time-delay, high interrupting capacity
  • Frame Size: Class J
  • Trip Type: Time-delay (melting alloy)
  • 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 terminals, ceramic body
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: J
  • Insulation Temperature: 80°C max
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: J
  • Diameter: 0.81 in (ferrule)
  • Velocity: N/A
  • Clip Center: 3.0 in
  • Clas: J
  • Mounting: Clip or holder
  • Hz: 50/60
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: 1.5 A
  • Dist Voltage: 600 VAC
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 1.5 A
  • Full Load Amp Minimum: 1.5 A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 1.5 A
  • Amperage Minimum: 1.5 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
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single or three-phase
  • Standards: UL 248-8, CSA C22.2 No. 248.8
  • Compatible Frames: Class J fuse holders
  • Installation Type: Clip or holder mount
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: N/A
  • Current Rating: 1.5 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: Not available
  • GTIN: Not available