Square D BDA34020Y - 20A, 3-Pole, Circuit Breaker

The Square D BDA34020Y is a 20A, 3-Pole circuit breaker designed to deliver dependable overcurrent protection in professional electrical distributions. Built for panelboards, switchboards, and control panels, this unit provides focused protection where 3-phase power drives motors and equipment.

With a 3-Pole configuration, it offers true three-phase protection and coordinated tripping across all phases, helping to safeguard motors, drives, and other equipment in industrial, commercial, and OEM environments. This design supports safe operation and reliable fault interruption in distribution panels and motor control centers.

Key considerations for real-world setups:

• Current rating: 20A — appropriate for protecting lighter-duty 3-phase loads without unnecessary trips
• Poles: 3-Pole — delivers complete three-phase protection and simplifies panel design
• Breaker type: Circuit Breaker — interrupts fault current to protect downstream devices
• Applications: suitable for panelboards, switchboards, and control panels, as well as distribution panels and motor control centers
• Ideal for: industrial facilities, commercial equipment rooms, and OEM machinery where dependable protection and safe operation are critical

Why this model stands out: it slots into the Square D protection ecosystem you already rely on, offering consistent, practical overcurrent protection across all three phases in a compact, compatible package.

Use cases to consider:

• Protect 3-phase motors, pumps, conveyors, and other equipment in manufacturing or processing lines up to 20A per phase
• Provide reliable branch-circuit protection for 3-phase gear in distribution panels and motor control centers
• Support upgrades or OEM installations by matching a proven Square D 3-pole, 20A specification

Practical planning and installation tips:

• Verify panel compatibility and labeling to ensure 3-pole, 20A devices are appropriate for your setup
• Align mounting with your panel, switchboard, or control panel’s bus configuration and enclosure guidelines
• Review load distribution across phases to prevent imbalances and optimize protection