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A1L240

Square D
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Square D A1L240 is a 2-pole, 40 Amp molded case circuit breaker from the A1L Series, designed to provide thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions for electrical systems. It operates at a voltage rating of 240V with a 10kA interrupting capacity at 240V, utilizing a feed-thru connection for single-phase applications. The unit weighs 2 lb and features a bolt-on mounting type with an A1L frame construction. This breaker is UL Listed to meet industry safety and performance standards. It is suitable for commercial and industrial applications requiring reliable overcurrent protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Part Number: A1L240
  • Item Subcategory: Molded Case
  • Family: A1L Series
  • Type: A1L
  • Amperage: 40 Amps
  • Voltage: 240 Volts AC
  • Poles: 2
  • Phase: 1
  • Frame Type: A1L
  • Mounting Type: Bolt-On
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC rating: 10kA@240V
  • Weight: 2 lb
  • Certifications: UL Listed


Square D A1L240 - Molded Case Breaker 40A 2-Pole