Square D HDA36125SV 125A 3-Pole 600 V Circuit Breaker

Introducing the Square D HDA36125SV, a 125A, 3-pole, 600 V circuit breaker engineered to protect three-phase power in demanding industrial and commercial installations. With this device in your panels, you gain reliable fault interruption and safeguarded wiring, motors, and downstream equipment when overloads or short circuits occur.

Key specifications

• Current rating: 125 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36125SV
• Brand: Square D

Why this matters

• Three-pole protection: The 3-pole design ensures all three phases are disconnected simultaneously during a fault, minimizing the risk of phase-to-phase faults and equipment damage.
• Robust, dependable protection: Built to handle challenging electrical environments, this Square D breaker provides consistent interruption performance for critical circuits.
• Clear specification alignment: Rated for 125 A and up to 600 V, it suits standard three-phase feeders and distribution pathways found in industrial and commercial settings.

Ideal use cases

• Three-phase feeder circuits in industrial control panels and distribution boards
• Motor and equipment protection for manufacturing lines, HVAC systems, and processing equipment
• Panel upgrades or replacements in systems that require reliable 3-phase protection at up to 600 V

Installation and compatibility

Designed to fit compatible Square D panels that accept HDA-series breakers, the HDA36125SV is a straightforward, drop-in protection solution for existing three-phase infrastructure. When installing, verify panel compatibility, ensure proper torque on terminals, and coordinate with overall system protection schemes to optimize performance and safety.

Equip your electrical distribution with the Square D HDA36125SV 125A 3-Pole 600 V Circuit Breaker to deliver precise, dependable three-phase protection where it matters most.