EH24040 - 40A Circuit Breaker

EH24040 - 40A Circuit Breaker

The EH24040 40 A Circuit Breaker from Square D delivers dependable protection for your electrical systems—whether you’re handling residential upgrades or outfitting a commercial project. Powered by reliable thermal‑magnetic technology, it quietly shields against short circuits and overloads, helping your system run safely and smoothly for years to come. With its plug‑on setup, the EH24040 keeps installation simple, and its build is tough enough to withstand real‑world conditions.

Key Features and Benefits

• Thermal‑Magnetic Defense: This circuit breaker uses trusted thermal‑magnetic protection, responding precisely and quickly to overcurrent events that could otherwise damage equipment or wiring.
• High Interrupting Power: With a 14,000 AIC rating at 480 VAC, it handles serious electrical surges without breaking a sweat—ideal for demanding environments.
• Plug‑On Setup: No fuss, no nuts and bolts—just slide it into place and you’re ready. This saves contractors time and cuts down on installation headaches.

Technical Specifications

• Poles: 2
• Amperage: 40 A
• Voltage: Rated up to 480 VAC
• Interrupting Rating: 14,000 AIC
• Frame Type: EH‑4
• Wire Capacity: Accepts #12‑#2 AWG copper or aluminum wire (75 °C rating)

Material Compliance and Certifications

Crafted with high‑grade components that meet and exceed industry standards, the EH24040 is UL‑listed, meaning it’s gone through thorough safety and performance testing. The materials are selected for durability and environmental responsibility—so you’re getting a breaker that’s both safe and thoughtfully constructed.

Where It Works Best

Perfectly suited for the NEHB Panelboard only, this breaker shines in applications ranging from new wiring setups to modernizing existing distribution systems. Whether you’re working in a home, office, or light‑industrial space, the EH24040 gives you trustworthy performance without overcomplicating things.