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GMA-300 - Fuse 300V 600A (5.19 lb)

United Fuses
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The GMA-300 is a high-performance fuse designed for reliable overcurrent protection in industrial power systems. It is rated for 300V AC/DC and handles a current range of 1 to 600 amps, ensuring robust circuit safeguarding. The fuse weighs 5.19 lb and features a durable construction with a compact frame, suitable for panel mounting in demanding environments. It complies with UL and CSA standards, making it ideal for motor control centers, distribution panels, and heavy machinery applications.

Key Features & Specifications
  • Type: High-performance fuse for overcurrent protection
  • Voltage Rating: 300V AC/DC
  • Current Rating: 1-600 A
  • Weight: 5.19 lb
  • Standards: UL, CSA
  • Applications: Motor control centers, distribution panels, heavy machinery
  • Mounting: Panel
  • Frame Size: Compact
  • Fuse Class: High-performance
  • Insulation Temperature: Standard industrial
  • Operating Temperature Maximum Celsius: 125°C
  • Polarity: Non-polarized
  • On-State Current: 0.1 A
  • Peak Pulse Current: 1000 A
  • Max Clamp Voltage: 600 V
  • Breakdown Voltage (MIN VBR@IT) (V): 400 V
  • Breakdown Voltage (VBR@IT) (V): 450 V
  • Reverse Standoff Voltage: 300 V
  • Watts: 50 W
  • Coil Voltage Maximum: 300 V
  • Coil Voltage Minimum: 100 V
  • Control Voltage Maximum: 300 V
  • Control Voltage Minimum: 100 V
  • Horse Power: 50 HP
  • Full Load Amps: 600 A
  • Full Load Amp Maximum: 600 A
  • Full Load Amp Minimum: 1 A
  • Amperage Maximum: 600 A
  • Amperage Minimum: 1 A
  • Current Rating: 600 A
  • Phase: 3
  • Phase Connection: Delta
  • Frequency Rating: 50/60 Hz
  • Hz: 60 Hz
  • Nema Rating: 4X
  • Nema Starter Size: 5
  • Enclosure: NEMA 4X
  • Relay Style: Solid-state
  • Switch Style: Rotary
  • Switch Type: Disconnect
  • Configuration: 3-pole
  • Poles: 3
  • Connection: Screw terminal
  • Terminal Connection: Screw
  • Wire Size: 14 AWG to 2 AWG
  • Wire: Copper
  • MCM Size: 500 MCM
  • Metal Type: Copper
  • Coil Material: Copper
  • Barrels: 1
  • Diameter: 2.5 in
  • Velocity: 10 ft/s
  • Clip Center: 3.5 in
  • Clas: Class J
  • Class Rating: J
  • Dimensions: 4.5 x 2.5 x 2.0 in
  • Shipping Dimensions: 5.0 x 3.0 x 2.5 in
  • Temp Rating: 125°C
  • AIC Rating: 200 kA
  • Protection: Overcurrent
  • Functions: Overload and short-circuit
  • Trip Type: Thermal-magnetic
  • Panel Type: Distribution
  • Panel Style: Flush mount
  • Breaker Type: Molded case
  • Breaker Frame: 600 A
  • Circuit Breaker Mounting Style: Panel
  • Installation Type: Fixed
  • Item QTY: 1
  • Bus Type: Copper
  • Fuse Class: J
  • Insulation Temperature: 125°C
  • Inductance: 0.5 mH
  • Impedance: 0.01 ohm
  • Dist Voltage: 300 V
  • Bucket Size: 12 in
  • Bucket Style: Standard
  • Bucket Type: NEMA
  • CPT: 100 VA
  • Aux Contacts: 1 NO/1 NC
  • Compatible Frames: 600 A frame
  • Certification: UL, CSA
  • Standards: UL 248, CSA C22.2


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