Square D EJB26040 40A 2-Pole 347 V Circuit Breaker

The Square D EJB26040 40A 2-Pole 347 V Circuit Breaker is a dependable, high-capacity protection solution designed for commercial and light industrial electrical systems. With a 40-amp current rating and a two-pole design, this breaker provides robust protection for 347-volt circuits while ensuring a safe, simultaneous disconnect of both conductors when needed. Part Number EJB26040 guarantees precise compatibility with Square D panels that accept EJB-series breakers, making it a reliable choice for panel upgrades or replacements.

Key specifications

• Current rating: 40 A
• Poles: 2
• Voltage rating: 347 V
• Part number: EJB26040

What makes this breaker stand out

• Two-pole design provides coordinated disconnection of both live conductors, enhancing safety in higher-voltage 347 V circuits.
• Trusted Square D build quality, designed to integrate seamlessly with existing Square D load centers and electrical distribution panels that support EJB-series breakers.
• 40 A rating makes it well-suited for protecting branch circuits associated with moderate-load equipment in commercial settings, such as lighting, heating, and motor-driven loads within the 40-amp range.

Ideal applications

• Commercial lighting and HVAC control circuits operating at 347 V.
• Engineered loads or equipment within a 40-amp power profile in offices, schools, retail spaces, and light industrial environments.
• Replacement or upgrade for aging panels that require an EJB-series, 2-pole breaker with 347 V compatibility.

Installation, compatibility, and practical tips

• Designed for Square D panels that accept EJB-style breakers; confirm your panel’s compatibility before installation).
• Use as a branch-circuit protector to prevent overloads and short-circuit damage on circuits up to 40 A in a 347 V system.
• Handle with care during installation and ensure the breaker is firmly seated in the panel bus for reliable operation.
• Keep a spare EJB26040 on hand for quick replacements to minimize downtime on critical 347 V circuits.

Choose the Square D EJB26040 40A 2-Pole 347 V Circuit Breaker for dependable, code-aware protection in commercial and light industrial electrical infrastructure. Its precise 40 A, 2-pole configuration and 347 V rating address real-world circuit protection needs, helping you maintain safe, efficient power distribution across essential systems.