Square D | EHB34040 | Circuit Breaker | 40A | 480V | 14kA | Bolt-On

Discover dependable protection for demanding commercial and industrial panels with the Square D EHB34040 circuit breaker. This 40A, 480V bolt-on unit delivers reliable overcurrent protection in maintenance, retrofit, and replacement scenarios, ensuring your electrical system stays safe and compliant while you keep operations running smoothly.

Key specifications

• Amperage: 40A
• Voltage rating: 480V
• Interrupting rating: 14kA
• Mounting type: Bolt-On
• Part reference: EHB34040

Why this bolt-on breaker stands out: it’s built for fast, secure installation in compatible Square D panels, with a high interrupting rating to handle short-circuit events and protect downstream equipment. The bolt-on design simplifies service and replacement, minimizing downtime during critical maintenance windows. With the exact specifications matched to the EHB34040 part number, you’ll have a precise fit that aligns with your panel’s architecture and protective characteristics.

Ideal use cases

• Maintenance of aging electrical panels that require a precise 40A, 480V protection profile
• Retrofit projects upgrading distributions to higher voltage or updated protection schemes
• Replacement for failed or outdated breakers in industrial or commercial applications
• Spare part for service crews that manage Square D electrical systems

Compatibility and safety notes: Always confirm fit and ratings before ordering. The part number EHB34040 is your best reference for ensuring correct compatibility with your panel. Installation should follow your panel manufacturer's guidelines and local electrical codes, performed by qualified electrical professionals.