Square D BDA34090Y PowerPact B Circuit Breaker – 3 Pole – 90A – Thermal Magnetic – I-Line – ABC Phase Connection

The Square D BDA34090Y is a PowerPact B-frame molded case circuit breaker designed for reliable overcurrent protection in commercial and industrial three-phase electrical distribution systems. Manufactured by Schneider Electric, this 3-pole, 90A breaker delivers thermal-magnetic (LI) protection, ensuring dependable Long-Time and Instantaneous tripping for overloads and short-circuit faults.

Built for Square D I-Line panelboards and switchboards, the BDA34090Y features a plug-on I-Line mounting system for fast installation and straightforward replacement of legacy FA34090 breakers. Its compact B-frame design provides efficient use of panel space while maintaining strong interrupting performance. The breaker includes current-limiting capability and a Visi-Trip visual indicator for quick fault identification and reduced downtime.

Specifications

• Brand: Square D
• Manufacturer: Schneider Electric / Square D
• Series: BDA (PowerPact B-Frame)
• Part Number: BDA34090Y
• Type: Molded Case Circuit Breaker (MCCB)
• Poles: 3
• Amperage Rating: 90A
• Phase: 3 Phase
• Voltage Rating: 480Y/277VAC (3-phase systems)
• Mounting Style: I-Line Plug-In
• Terminal Type: Lugs

Electrical Ratings

• Voltage Range:
  • 208Y/120VAC
  • 240VAC
  • 480Y/277VAC
  • 250VDC
• Interrupting Capacity (AIC):
  • 25kA @ 208Y/120VAC
  • 25kA @ 240VAC
  • 18kA @ 480Y/277VAC
  • 10kA @ 250VDC
• Protection Type: Thermal Magnetic
• Trip Functions: Long-Time and Instantaneous (LI)
• Trip Adjustability: Fixed Thermal, Fixed Magnetic

Connection Details

• Line Side: I-Line Plug-On Jaw
• Load Side: Mechanical Lugs
• Phase Configuration: ABC
• Accessories: Factory-configured ABC phase connection

Construction Features

• Compact PowerPact B-frame design
• Current-limiting protection
• Dual-break contact system
• Integrated Visi-Trip indicator
• I-Line plug-on mounting system
• HACR rated

Wire Capacity

• Conductor Range: 14 AWG to 2/0 AWG
• Compatible Conductors: Copper (Cu) and Aluminum (Al)
• Maximum Wire Size: 2/0 AWG
• Minimum Wire Size: 14 AWG

Applications

• Commercial electrical distribution systems
• Industrial three-phase power systems
• Square D I-Line panelboards and switchboards
• Motor branch circuit protection
• HVAC and building systems
• OEM electrical equipment

Standards & Approvals

• UL 489
• CSA C22.2 No. 5
• EN/IEC 60947-2
• GB 14048.2
• NEMA AB 1
• NMX J-266

Approvals:

• UL Listed
• CSA Certified
• CE Marked
• IEC Compliant
• CCC Approved
• EAC Approved
• NOM Certified

Returns are easy

You may return items within 30 days of delivery for a refund.

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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.