Square D EDB16020 - 20 A, 347 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Powerful, reliable protection for your electrical panel, the Square D EDB16020 is a 20A, 347V, 1-pole bolt-on molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Available from AmpState, this OEM-compatible piece keeps your distribution system aligned with the exact Square D specifications you rely on.

Designed for rugged installations, the secure bolt-on mounting delivers a rigid bus connection that resists vibration and loosening in busy electrical spaces—an essential advantage in commercial and light industrial environments. The thermal-magnetic trip unit provides stable, repeatable protection, delivering fast response to faults while minimizing nuisance trips during normal operation.

• Secure bolt-on mounting for a tight, vibration-resistant bus connection.
• Thermal-magnetic trip unit delivers predictable protection performance against overloads and short circuits.
• OEM-compatible with matching Square D load centers and panelboards for consistent fit and trip characteristics.
• Single-pole, 20A, 347V configuration ideal for dedicated branch circuits in 347V systems.
• Versatile application suitable for residential, commercial, and light industrial use.

Real-world use cases

Replacing a worn breaker in a Square D panel? The EDB16020 plugs into the same footprint and shares the same trip curve, ensuring predictable behavior after replacement. Use it for lighting feeders, small power circuits, or other single-circuit protections in commercial spaces that operate on 347V distribution.

Why choose this over generic breakers? The bolt-on design delivers a solid, vibration-resistant connection that reduces the risk of loose mounting, while the thermal-magnetic protection provides reliable fault response tailored to real-world loads in panelboards and load centers.

Source and stock certainty come from AmpState—your trusted source for Square D components—and a straightforward option for keeping spare breakers on hand for fast maintenance.

Technical snapshot

Manufacturer: Square D

Part number: EDB16020

Type: Thermal-magnetic molded case circuit breaker

Amperage rating: 20 A

Voltage rating: 347 V

Poles: 1

Mounting style: Bolt-on

Applications: Branch circuit overcurrent and short-circuit protection