Square D FH16035 A - 35 A, 277 V, 1-Pole Plug-In Circuit Breaker | AmpState

The Square D FH16035A 35A, 277V, 1-Pole Plug-In Molded Case Circuit Breaker is engineered to protect your electrical system with precision and ease. Built for dependable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters, this compact, plug-in unit is a reliable upgrade for commercial, residential, and light industrial environments that run on 277-volt power.

Why this breaker stands out

• Fast plug-in connection: Designed for quick installation and straightforward replacements, minimizing panel downtime during maintenance or upgrades.
• Thermal-magnetic trip unit: Combines thermal (overload) and magnetic (short-circuit) protection for stable, repeatable performance and reliable circuit isolation when it matters most.
• 1-pole, 35A at 277V: Specifically suited for single-circuit protection in 277V systems, aligning with common commercial lighting and control circuits.
• Panelboard compatibility: Engineered to be compatible with matching OEM loadcenters and panelboards, ensuring a clean fit and consistent protection.
• Versatile applications: Appropriate for a range of settings—from home electrical panels to small-scale commercial and light industrial installations.

What problems does it solve?

When a circuit in a panelboard or loadcenter faces overcurrent or a short, the FH16035A responds quickly to interrupt power, protecting conductors, devices, and downstream equipment. The thermal-magnetic design reduces nuisance trips while maintaining strong protection for critical circuits. With a plug-in format, it also reduces the complexity and downtime typically associated with breaker replacement, making routine maintenance smoother and more predictable.

Ideal use cases

• Upgrading or replacing a worn or incompatible breaker in 277V panelboards.
• Adding branch-circuit protection for commercial lighting, receptacle circuits, or other 277V loads in small-to-mid sized installations.
• Maintenance-ready design that supports routine panel servicing with minimal interruption.

Technical snapshot

• Manufacturer: Square D
• Part Number: FH16035A
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 35A
• Voltage Rating: 277V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Designed for professionals who demand dependable protection without sacrificing installation efficiency, the FH16035A helps you keep panels organized and operating smoothly. Its plug-in form factor means fewer steps during servicing, and the built-in thermal-magnetic protection provides clear, predictable behavior across a range of operating conditions.

Whether you’re updating an aging panel, expanding a system, or replacing a faulty breaker, the FH16035A offers a precise fit for 277V, 1-pole circuits. Trust this Square D solution to deliver targeted protection where you need it most, backed by a design that emphasizes reliability, ease of installation, and long-term performance.