Square D PFA-34020 - 20A, 3-Pole, Breaker Bus Plug

When your electrical distribution depends on precise, reliable 3-phase power, the Square D PFA-34020 Breaker Bus Plug delivers the performance you need in industrial and commercial environments. Built to withstand demanding duty in busway and panelboard systems, this 20A, 3-pole bus plug is a critical component for safe, modular power distribution.

Engineered for reliability in demanding environments

Designed by Square D, the PFA-34020 integrates into compatible busway and panelboard configurations, supporting clean, organized power flow with minimal voltage drop and secure connections. With a dedicated 20A rating, it controls load distribution across three phases, helping facilities manage motors, process equipment, and HVAC systems without overloading circuits.

Key features and benefits

• Precise 20A rating provides controlled load distribution for three-phase systems, reducing nuisance trips and extending equipment life.
• 3-Pole configuration supports typical three-phase power architectures found in industrial plants and commercial facilities.
• Designed for busway and panelboard power distribution systems—fits Square D deployment ecosystems for streamlined upgrades and retrofits.
• Durable construction built to endure harsh industrial environments, with reliable contact interfaces and secure retention.
• Maintenance and retrofit friendly ideal for replacements where compatible, hard-to-find busplugs are required.

Practical use cases

Use this bus plug when upgrading an aging distribution network or retrofitting a facility with modular busway and panelboard systems. It’s well suited for:

• Industrial plants needing dependable three-phase distribution for motors, conveyors, and process equipment.
• Commercial facilities performing equipment upgrades or expansions that rely on modular bus plugs.
• Retrofit projects where stock or compatible 3-pole bus plugs are essential to minimize downtime.

Specifications at a glance

• Brand: Square D
• Model: PFA-34020
• Type: Breaker Bus Plug
• Amperage: 20A
• Phase / Poles: 3-Pole
• Application: Busway and panelboard power distribution systems

Whether you're performing routine maintenance, a targeted upgrade, or a retrofit project, the Square D PFA-34020 Breaker Bus Plug delivers dependable performance, clear electrical separation, and compatibility with established power distribution architectures. Rely on this proven component to keep your three-phase systems energized, protected, and ready for the demands of modern industrial and commercial operations.