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Schneider Electric QMB3250LAW - Circuit Breaker 250A 3-Pole

Schneider Electric
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Schneider Electric QMB3250LAW Circuit Breaker - Circuit Breaker 250A 3-Pole The Schneider Electric QMB3250LAW is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 250 amps at 600 volts AC, providing reliable interruption of fault currents. This unit features a compact, thermal-magnetic trip mechanism housed in a rugged thermoplastic enclosure, weighing 36 pounds and manufactured in the United States. It complies with UL 489 and CSA standards, ensuring safe operation in commercial and industrial environments. Typical applications include motor control centers, panelboards, and switchboards requiring high-amperage branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Trip, 3-Pole
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: Compact molded case design
  • Standards: UL 489, CSA
  • Applications: Motor control centers, panelboards, switchboards
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard industrial packaging
  • Phase: 3-Phase
  • Voltage: 600V AC
  • Amperage: 250A
  • AIC rating: 25kA at 480V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Circuit isolation and fault interruption
  • Frame Size: QMB
  • Trip Type: Thermal-Magnetic
  • Panel Type: Industrial distribution
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Up to 350 kcmil
  • Metal Type: Copper alloy contacts
  • Panel Style: Bolt-on
  • Bus Type: Aluminum or copper
  • 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: Bolt-on
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Up to 150 HP at 480V
  • Aux Contacts: Optional
  • CPT: Not included
  • Full Load Amps: 250A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 250A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 250A
  • Amperage Minimum: 0A
  • Nema Rating: Not applicable
  • Switch Style: Toggle handle
  • Wire Size: 14 AWG to 350 kcmil
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489, CSA
  • Compatible Frames: QMB series
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QMB
  • Current Rating: 250A
  • 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: 785901784807
  • GTIN: