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GMA-15 - Miniature Circuit Breaker 15A 277/480V AC

United Fuses
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GMA-15 is a general-purpose miniature circuit breaker designed for overcurrent protection in industrial control panels. It is rated for 15 amps at 277/480 volts AC, with a 10 kA interrupting capacity, and features a compact 1-inch wide molded case construction with a thermal-magnetic trip mechanism. This breaker complies with UL 489 and CSA C22.2 standards, ensuring reliable performance in branch circuit protection. Typical applications include motor control centers, lighting panels, and distribution boards in manufacturing and commercial facilities.

Key Features & Specifications
  • Type: Miniature Circuit Breaker (MCB), thermal-magnetic trip, molded case
  • Voltage Rating: 277/480V AC
  • Current Rating: 15A
  • Dimensions: 1" wide x 3.5" deep x 4.5" high
  • Standards: UL 489, CSA C22.2
  • Applications: Branch circuit protection in industrial control panels, motor control centers, lighting panels
  • Switch Type: Toggle
  • Configuration: 1-pole
  • Coil Voltage Maximum: N/A (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 5.5" x 3.5" x 2.5"
  • Phase: 1-phase
  • Voltage: 277/480V AC
  • Amperage: 15A
  • AIC rating: 10 kA
  • Connection: Line and load terminals
  • Poles: 1
  • Protection: Overcurrent
  • Functions: Overload and short-circuit protection
  • Frame Size: 1-inch
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial
  • Breaker Type: Miniature
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: N/A
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: 105°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: DIN rail or panel mount
  • Hz: 50/60 Hz
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 15A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 8 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: DIN rail or panel
  • Terminal Connection: Screw-type
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: N/A
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: 1-inch
  • Current Rating: 15A
  • 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: 40°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A
  • Weight: 5.19 lb


Product Identification
  • UPC: Not available
  • GTIN: Not available