Square D FH16020C 20A 1P 277V Circuit Breaker, Plug-On | AmpState

Designed by Square D, the FH16020C is a 1-pole, 20-amp circuit breaker built for 277V distribution in panelboards and load centers. Its plug-on design enables a fast, secure installation that preserves the integrity of your electrical protection scheme, minimizing downtime during upgrades or replacements.

Ideal for replacement projects and stocking spares to keep your BOM aligned with the original part number, the FH16020C delivers dependable performance where commercial and industrial circuits demand reliability. When you need a part that fits seamlessly with your existing Square D equipment, this breaker keeps the protection profile consistent across your distribution network.

Why the FH16020C stands out

• Plug-On installation for quick seating into compatible panelboards and load centers, reducing service time on job sites.
• 277V, 1-Pole, 20A configuration matches common commercial lighting and distribution circuits, providing targeted protection where it’s needed most.
• Original-part compatibility ensures replacement fit and continuity with the device’s BOM, helping maintain system integrity.
• Reliable circuit protection to guard against overloads and prevent equipment damage in critical electrical networks.
• Available from AmpState, with expert support to confirm fit and compatibility for your specific panel or distribution setup.

Ideal applications and use cases

Perfect for electricians and facility managers working with commercial or light industrial installations that utilize 277V distribution. Use the FH16020C for:

• Replacing a failed breaker in panelboards and load centers without reconfiguring the existing protection scheme.
• Maintaining BOM consistency by stocking a genuine Square D part that aligns with original equipment specifications.
• New-builds or retrofit projects where a reliable, plug-on 1P 277V breaker is required.
• Service kits for maintenance crews who manage multiple panels with standardized 277V circuits.

Practical considerations and tips

Before installation, verify the part number FH16020C matches the original device and that your system operates at 277V. Power down the service and follow proper safety protocols. If you’re unsure about compatibility, AmpState offers support to help confirm fit and ensure you’re selecting the correct replacement part for your panel.

Specifications at a glance

• Manufacturer: Square D
• Part number: FH16020C
• Product type: Circuit Breaker
• Amperage: 20 A
• Poles: 1
• Voltage: 277 V
• Mounting: Plug-On

Bring robust protection to your electrical distribution with the Square D FH16020C 20A 1P 277V Circuit Breaker—now available from AmpState. Add to cart to ensure your panel remains protected and aligned with the original equipment BOM.