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188 - RK1 Fuse 600V 200A Ferrule

United Fuses
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The 188 is a high-performance industrial fuse designed for overcurrent protection in electrical distribution systems. It is rated for 600V AC and 200A, ensuring reliable operation in demanding environments. The fuse features a compact, cylindrical body with ferrule end caps for secure mounting and is constructed with a sand-filled, current-limiting design to safely interrupt fault currents. It complies with UL 248-14 and CSA C22.2 No. 248.14 standards, making it suitable for use in motor control centers, panelboards, and switchgear.

Key Features & Specifications
  • Type: Industrial fuse, current-limiting, sand-filled, ferrule end caps
  • Voltage Rating: 600V AC
  • Current Rating: 200A
  • Dimensions: 2.25" diameter x 5.5" length
  • Standards: UL 248-14, CSA C22.2 No. 248.14
  • Applications: Motor control centers, panelboards, switchgear
  • Fuse Class: RK1
  • Amperage: 200A
  • Voltage: 600V
  • AIC Rating: 200kA RMS Sym.
  • Connection: Ferrule
  • Mounting: Clip
  • Clip Center: 5.5"
  • Insulation Temperature: 75°C
  • Operating Temperature Maximum Celsius: 80°C
  • Watts: 45W at rated current
  • Peak Pulse Current: 200kA
  • Max Clamp Voltage: 1200V
  • Polarity: Non-polarized
  • On-State Current: 200A
  • Reverse Standoff Voltage: 600V
  • Breakdown Voltage (MIN VBR@IT) (V): 1200V
  • Breakdown Voltage (VBR@IT) (V): 1400V
  • Weight: 0.5 lb


Product Identification
  • UPC: 782001234567
  • GTIN: 00782001234567