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NAR40 - RK1 Fuse 40A 600V (5.19 lb)

United Fuses
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The NAR40 is a robust industrial fuse designed for overcurrent protection in high-power electrical systems. It operates at a voltage rating of 600V AC/DC with a current rating of 40A, featuring a compact, non-renewable cartridge construction with a 5.19 lb weight. This fuse complies with UL and CSA standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, panelboards, and distribution equipment requiring high interrupting capacity.

Key Features & Specifications
  • Type: Non-renewable cartridge fuse, melamine tube construction
  • Voltage Rating: 600V AC/DC
  • Current Rating: 40A
  • Weight: 5.19 lb
  • Standards: UL listed, CSA certified
  • Applications: Motor control centers, panelboards, distribution equipment
  • Interrupting Rating: 200kA RMS Sym.
  • Class: RK1
  • Dimensions: 5.875" x 1.063" diameter
  • Terminal Connection: Ferrule end caps
  • Operating Temperature: -40°C to 80°C
  • Mounting: Clip or bolted
  • Frequency Rating: 50/60 Hz
  • Phase: Single
  • AIC Rating: 200kA
  • Connection: Ferrule
  • Poles: 1
  • Protection: Overcurrent
  • Functions: Short-circuit and overload protection
  • Frame Size: 40A
  • Trip Type: Non-time delay
  • Panel Type: Open
  • Breaker Type: Fuse
  • Control Voltage: N/A
  • MCM Size: N/A
  • Metal Type: Copper alloy
  • Panel Style: NEMA
  • Bus Type: N/A
  • Fuse Class: RK1
  • Insulation Temperature: 80°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: 1
  • Class Rating: RK1
  • Diameter: 1.063"
  • Velocity: N/A
  • Clip Center: 5.875"
  • Mounting: Clip
  • Hz: 50/60
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: 40A
  • Dist Voltage: 600V
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 40A
  • Full Load Amp Minimum: 40A
  • Enclosure: Open
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 40A
  • Amperage Minimum: 40A
  • 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
  • Standards: UL 248-12, CSA C22.2 No. 248.12
  • Compatible Frames: N/A
  • Installation Type: Clip or bolted
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: N/A
  • Current Rating: 40A
  • 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: 74597589057
  • GTIN: 00745975890576