Square D EDB34040 40A 3-Pole Thermal-Magnetic – Bolt-On – 480Y/277V

The Square D EDB34040 by Schneider Electric is a 40 Amp, 3-pole E-Frame miniature circuit breaker designed for NF panelboards. With a 25kA interrupt rating at 480Y/277V AC, bolt-on mounting, and HACR rating, it provides reliable overload and short-circuit protection. Its thermal-magnetic trip technology ensures precise response under fault conditions.

Voltage and Rating:

• Current Rating: 40 Amps
• Voltage Rating: 480Y/277 V AC
• Interrupting Capacity: 18kA at 480Y/277V AC, 25kA at 240V AC

Key Specifications:

• Breaker Type: Thermal-Magnetic Miniature Circuit Breaker (E-Frame)
• Number of Poles: 3-Pole
• Mounting Mode: Bolt-on
• Trip Unit Rating: 1800 A
• Holding Current: 630 A
• Protection Type: Overload and Short-circuit
• Trip Unit Technology: Thermal-Magnetic
• Breaking Capacity Code: D
• Application: NF Panelboard protection

Electrical Connections:

• Wire Size (Aluminum): AWG 12–2/0
• Wire Size (Copper): AWG 14–2/0
• Electrical Connection: Aluminum lugs
• Connection Terminals: Aluminum lugs
• Tightening Torque:
• 34.5 lbf.in (AWG 14–10)
• 49.6 lbf.in (AWG 8–2/0)

Physical Specifications:

• • Dimensions (H × W × D): 5.66 × 2.94 × 4.05 in (143.76 × 74.68 × 102.87 mm)
  • Weight: 4 lbs (1.8 kg)
  • Number of Spaces Required: 3

Product Data

• • Manufacturer: Schneider Electric
    Brand: Square D
    Model Number: EDB34040
    UPC/GTIN: 785901875284
    Range: 125 A Frame EDB-EGB-EJB Series
    Product Type: Miniature Circuit Breaker
    Module Type: E-Frame
    Device Short Name: EDB
    Certifications: HACR Rated
    Product Destination: NF Panelboard

Returns are easy

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

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.