Square D YA800P7 800A Circuit Breaker

Meet the Square D YA800P7 800A circuit breaker — a heavy-duty protective device engineered to safeguard high-current electrical circuits in industrial and commercial environments. With an 800 A rating and design optimized for Square D panels that accept YA-series breakers, this unit delivers reliable interruption to protect wiring, equipment, and personnel from overloads and short circuits.

Why this model stands out:

• 800 A current rating supports large feeders and service-disconnect needs, delivering robust protection for demanding installations without compromising response speed.
• YA-series compatibility ensures seamless integration in compatible Square D enclosures, making it a straightforward option for panel upgrades or capacity expansions.
• Rugged, industrial-grade construction built to endure the rigors of continuous operation, vibration, and temperature variations often found in commercial and light-industrial settings.
• Reliable, predictable protection with a dependable trip mechanism designed to respond to overloads or faults, minimizing downtime and protecting downstream equipment from damage.

Use cases

Ideal for applications where high-current protection is essential, such as:

• Main service disconnects for large commercial buildings
• Feeders supplying heavy machinery, HVAC systems, or critical electrical infrastructure
• Panel upgrades or expansions in facilities that require maintaining existing enclosures while increasing capacity

Installation and compatibility

Before installation, verify that your panel accepts YA-series breakers and that line/load connections match the YA800P7 specifications. This product should be installed by a licensed electrician in accordance with local electrical codes and the panel manufacturer's guidelines. Keeping a spare YA800P7 on hand can reduce downtime during maintenance or replacements.

Product details

Part number: YA800P7 • Brand: Square D • Current rating: 800 A. This description highlights the essential purpose and fitment for high-current distribution systems.