Square D EDB24040 40A 2-Pole Thermal-Magnetic Circuit Breaker – Bolt-On – 480Y/277V

The Square D EDB24040 40A 2-Pole Thermal-Magnetic – Bolt-On – 480Y/277V circuit breaker provides reliable 40 Amp, 2-pole thermal-magnetic protection for commercial and industrial 480Y/277V AC systems. Designed for use in Square D NF and NQ panelboards, this E-Frame breaker delivers superior short-circuit and overload protection while offering convenient installation with bolt-on mounting. The integrated Visi-Trip indicator allows for quick fault detection, and robust lugs accommodate large wire sizes up to 2/0 AWG, ensuring a durable and efficient solution for demanding electrical systems. HACR and HID rated, and calibrated for 40°C ambient conditions, it meets rigorous industry standards for safety and performance.

Voltage and Rating

• Current Rating: 40 Amps
• Voltage Rating: 480Y/277 Volts AC
• Interrupting Capacity:
• 25 kAIC at 240V AC
• 18 kAIC at 480Y/277V AC
• Frequency: 50/60 Hz

Key Specifications

• Breaker Type: Thermal-Magnetic
• Number of Poles: 2-Pole
• Mounting Type: Bolt-On
• Product Range: E-Frame (for Square D NF and NQ panelboards)
• Application: Commercial and industrial branch circuit protection
• Special Features: Visi-Trip indicator, calibrated for 40°C ambient
• Ratings: HACR & HID Rated, TAA Compliant

Technical Specifications

• Connection Type: Lugs (aluminum/copper)
• Wire Size:
• Copper: AWG 14…AWG 2/0
• Aluminum: AWG 12…AWG 2/0
• Terminal Tightening Torque:
• 34.5 lbf-in (AWG 14…AWG 10)
• 49.6 lbf-in (AWG 8…AWG 2/0)
• Operating Mechanism: Thermal-magnetic
• Interrupt Rating: 25 kAIC (240V), 18 kAIC (480Y/277V)
• Certifications: UL Listed, cULus, HACR Rated, HID Rated

Product Data

• Manufacturer: Schneider Electric
• Brand: Square D
• Model Number: EDB24040
• UPC: 785901879060

Dimensions

• • Height: 5.66 in
  • Width: 1.96 in
  • Depth: 4.05 in
  • Weight: 3.0 lbs

Returns are easy

You may return items within 10 days of delivery for a refund.

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