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Square D MHP36800MT - Molded Case Breaker 800A 600V

Square D
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The Square D MHP36800MT is a molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC and carries a continuous current rating of 800A, providing robust fault interruption capabilities. This three-pole unit features a compact construction with a weight of 28.75 lb, utilizing a thermal-magnetic trip mechanism for reliable performance. The breaker complies with UL 489 and NEMA standards, ensuring safety and durability in demanding environments. It is commonly applied in switchboards, panelboards, and motor control centers for heavy-duty industrial and commercial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 800A
  • Dimensions: Standard molded case frame size
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial power distribution, motor protection, feeder circuits
  • Switch Type: Toggle handle
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard molded case packaging
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 800A
  • AIC rating: 65kA at 240V AC, 35kA at 480V AC, 25kA at 600V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Circuit isolation and protection
  • Frame Size: MHP (Molded Case High Power)
  • Trip Type: Thermal-magnetic
  • Panel Type: Suitable for panelboards and switchboards
  • Breaker Type: Fixed mount
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Up to 500 MCM (copper/aluminum)
  • Metal Type: Copper and aluminum compatible
  • Panel Style: Industrial
  • Bus Type: Standard bus bar
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Fixed
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Up to 500 HP at 480V
  • Aux Contacts: Optional
  • CPT: Not included
  • Full Load Amps: 800A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 800A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper/aluminum
  • Amperage Maximum: 800A
  • Amperage Minimum: 0A
  • Nema Rating: NEMA 1 (open)
  • Switch Style: Toggle
  • Wire Size: #6 AWG to 500 MCM
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, NEMA AB-1, CSA C22.2
  • Compatible Frames: MHP series
  • Installation Type: Panelboard/switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: MHP
  • Current Rating: 800A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


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