Square D | FHF16070 | Circuit Breaker | 70A | 1-Pole | 277V

Meet a trusted protection device from Square D that’s built for reliability in demanding commercial and industrial environments. The FHF16070 is a 70A, 1-pole circuit breaker rated for 277V, designed to safeguard single-line circuits with precise overcurrent protection while fitting seamlessly into compatible Square D panels.

Key Specifications

• Amperage: 70A
• Poles: 1-Pole
• Voltage: 277V
• Part number: FHF16070
• Applications: maintenance, retrofit, and replacement where matching specs are required

Why this Square D FHF16070 Stands Out

What sets this breaker apart is its exact combination of 70A capacity, single-pole configuration, and 277V compatibility, making it a precise fit for circuits that demand robust protection without unnecessary complexity. Built by Square D, it delivers dependable tripping performance and compatibility within established Square D panel ecosystems, helping you maintain electrical system integrity during upgrades or repairs.

Ideal Use Cases

• Maintenance replacements in existing 277V single-phase circuits that require a 70A protection device
• Retrofits to bring older panels up to current protection standards without altering upstream wiring
• Emergency or planned replacements for critical lighting, receptacle, or equipment circuits in commercial settings

Fit, Compatibility, and Ordering Tips

Before ordering, confirm fit and ratings to ensure seamless operation in your panel. The FHF16070 part number is your best reference for compatibility, acting as the reliable identifier across documentation and ordering systems. If you’re refreshing an installation, verify that your panel supports 277V single-pole breakers of this rating to avoid mismatches.

Practical Considerations and Installation Insights

• Ensure power is fully isolated before any replacement work and follow all local electrical codes.
• Handle with care to avoid physical damage to the breaker’s enclosure and terminals.
• Store spares in their original packaging to preserve internal ratings and performance characteristics.