KDL32125 - 125 Amp Circuit Breaker

KDL32125 - 125 Amp Circuit Breaker

When you need dependable protection for heavy duty electrical systems, the KDL32125 125 Amp molded-case breaker delivers confidence. Built to manage high loads and guard your circuits from overcurrent and short circuits, this 3-pole, 240 V thermal-magnetic breaker is ideal for commercial and industrial power distribution systems. Manufactured by Schneider Electric / Square D under the PowerPact Type KDL series, it balances compact size with reliable performance to keep your installations safe and efficient.

Key Features and Benefits

• High current handling: With a 125 Amp rating, this breaker is ready for demanding load requirements.
• Fast response to faults: Incorporates both long-time (overload) and instantaneous (short-circuit) trip behavior for precise protection.
• Feed-through connection style: Supports streamlined wiring with line and load lugs, helping reduce complexity in panel layouts.
• Compact, serviceable design: The molded case format is easy to install, maintain, or replace when needed.
• Consistent protection: Engineered to deliver dependable interruption performance under varied electrical stresses.
  

Technical Specifications

• Voltage Rating: 240 V AC
  
• Current Rating: 125 A
  
• Poles / Phases: 3-pole / 3-phase
  
• Trip Type: Thermal-magnetic (Long-time + Instantaneous)
  
• Interrupting Capacity: 25 kA at 240 VAC
  
• Connection Type: Feed-through wiring
  
• Dimensions (approx.):
  • Width: 4.12″
  • Height: 7.06″
  • Depth: 4.17″

Material Compliance and Certifications

• Standards Compliance: Meets UL 489, CSA, and IEC safety standards for molded-case breakers.
• Material Quality: Constructed with flame-retardant, high dielectric materials that comply with global safety regulations.
• Durability: Designed to maintain insulation integrity and mechanical durability even under fluctuating temperature and electrical stress.
  

Where It Works Best

• The KDL32125 is suited for demanding power systems—such as industrial plants, commercial buildings, motor control centers, and branch circuit protections. It’s particularly useful in three-phase service panels, distribution boards, or zones where fault currents may be high and precision tripping is key. Whether you’re retrofitting an older system or specifying components for new construction, this breaker is an excellent choice for heavy loads, variable current demands, and circuit integrity.