872-103

Ensure the safety and reliability of your electrical system with this Square D Double Pole 40 Amp QO Plug-On Circuit Breaker. Designed for use in QO load centers and panelboards, this high-quality breaker provides superior overcurrent and short-circuit protection for heavy-duty 240V circuits. Its unique plug-on design allows for a quick and secure installation, while the double-pole configuration ensures simultaneous disconnection of both hot wires during a fault. Ideal for protecting high-demand residential and light commercial equipment, this breaker features a visible trip indicator to help you quickly identify circuit issues. Whether you are performing a repair or upgrading your electrical panel, this 40-amp circuit breaker is a critical component for maintaining a safe power distribution system.
Type: Electrical Circuit Breaker
Size: Standard Double Pole (1.5-inch width)
Dimensions: 3.00 inches × 1.50 inches × 3.22 inches
Application: Commonly used for high-draw 240V appliances such as electric water heaters, air conditioning condensers, baseboard heaters, and small subpanel feeds.
Specifications: 40 Amp current rating, 120/240V AC voltage rating, Double Pole (2-Pole), 10,000 AIC (Ampere Interrupting Capacity), Plug-on mounting style, Visi-Trip red indicator window.