Square D HJA260404AABCSJ 260404A 2-Pole 600 V Circuit Breaker

Protect critical circuits with the Square D HJA260404AABCSJ 260404A 2-Pole 600 V Circuit Breaker—an authentic Square D device engineered for reliable overcurrent protection in commercial and industrial electrical systems. This two-pole breaker is built to safeguard both hot legs of a 600 V circuit, helping to prevent damage from overloads and short circuits while keeping downtime to a minimum.

• Part number: HJA260404AABCSJ
• Current rating: 260404 A
• Poles: 2
• Voltage rating: 600 V

Why a 2-Pole, 600 V breaker matters

Designed for two‑line protection, this 2-pole configuration ensures synchronized interruption on both conductors of a circuit, which is essential for equipment safety and system integrity in higher‑voltage environments. The 600 V rating makes it suitable for commercial and light industrial distribution where multi‑line protection is required, providing a reliable safeguard for motors, feeders, and other Protected loads.

Ideal use cases

• Replacement or retrofit in Square D panelboards and enclosures that specify 2-pole, 600 V protection
• Protecting motor circuits, feeders, and distribution lines in commercial facilities
• Durable, field-service friendly protection for equipment operating up to 600 V

What sets this apart

As an authentic Square D component, this breaker integrates with Square D electrical systems to deliver dependable, industry‑standard protection without compatibility hassles. Its direct‑fit design supports straightforward installation, reducing downtime during replacement projects and ensuring consistent performance with other Square D protection devices in your fleet.

Installation and safety notes

Install and service by qualified electrical personnel only. Verify panel compatibility and follow all local electrical codes and safety practices when replacing circuit breakers. Proper seating and torque on terminals are essential for reliable operation and long service life.

Upgrade your electrical protection with the Square D HJA260404AABCSJ 260404A 2-Pole 600 V Circuit Breaker—a precise, durable solution for safeguarding two‑line circuits in demanding environments.