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Square D MH41 - Molded Case Circuit Breaker 225A 240V

Square D
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Square D MH41 Circuit Breaker is a molded case circuit breaker designed for overcurrent protection and electrical distribution in industrial and commercial power systems. It is rated for 240V AC and supports a continuous current rating of 225A, providing reliable fault interruption and load management. The unit features a compact NEMA 1 enclosure with a weight of 32.65 lb, constructed from durable metal for indoor installation. This breaker complies with UL and NEMA standards for safety and performance in North American electrical networks. It is typically used in panelboards, switchboards, and distribution systems within manufacturing facilities, commercial buildings, and utility infrastructure.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 240V AC
  • Current Rating: 225A
  • Dimensions: Standard NQOD enclosure size
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial and commercial power distribution
  • Switch Type: Toggle
  • Configuration: 1-pole, 2-pole, or 3-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 12 x 8 x 6 inches
  • Phase: 1 or 3
  • Voltage: 240V
  • Amperage: 225A
  • AIC rating: 10kA at 240V
  • Connection: Line and load lugs
  • Poles: 1, 2, or 3
  • Protection: Overcurrent and short-circuit
  • Functions: On/Off, trip indication
  • Frame Size: MH
  • Trip Type: Thermal-magnetic
  • Panel Type: NQOD
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Up to 250 kcmil
  • Metal Type: Steel
  • Panel Style: Surface mount
  • Bus Type: 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: Panel mount
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Up to 50 HP at 240V
  • Aux Contacts: Optional
  • CPT: Not included
  • Full Load Amps: 225A
  • Dist Voltage: 240V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 225A
  • Full Load Amp Minimum: 0A
  • Enclosure: NEMA 1
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 225A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 250 kcmil
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 1 or 3
  • Standards: UL 489, NEMA AB-1
  • Compatible Frames: NQOD
  • Installation Type: Indoor
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: MH
  • Current Rating: 225A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: 785901234567
  • GTIN: 00785901234567