Square D HDL36125SA - 125A, 3-Pole, Circuit Breaker

The Square D HDL36125SA is a 125A, 3-Pole circuit breaker designed for demanding electrical systems. Built for industrial environments, it delivers dependable overcurrent protection in panelboards, switchboards, and control panels, helping safeguard critical loads and motors from overloads and faults.

Featuring a three-pole configuration, this breaker protects all three phases of a 3-phase distribution network with a single, robust device. It’s an ideal choice for industrial, commercial, and OEM applications where safe operation and consistent performance are essential in distribution panels and motor control centers.

Key advantages

• 125A current rating provides strong protection for feeders and motor circuits.
• 3-Pole design supports multi-phase systems and simplifies wiring for comprehensive phase protection.
• Flexible installation suitable for panelboards, switchboards, and control panels across a range of settings.
• Durable for demanding environments built to support constant operation in industrial applications.
• Brand compatibility part of the Square D family, ensuring alignment with existing Square D electrical infrastructure.

Ideal applications

• Panelboards and switchboards in manufacturing facilities, warehouses, and processing plants.
• Control panels and motor control centers where reliable protection is essential for uptime and safety.
• OEM equipment builds requiring proven overcurrent protection with three-phase support.

Technical specifications

• Current rating: 125 A
• Poles: 3-Pole
• Breaker type: Circuit Breaker
• Model: HDL36125SA

For installers and facilities teams, the HDL36125SA offers a straightforward path to reliable system protection, designed to integrate with Square D panel ecosystems and to align with existing protection schemes with minimal complexity.