Westinghouse 4989D52G16 - 20A, 1-Pole, Circuit Breaker

Introducing the Westinghouse 4989D52G16 — a 20A, 1-Pole circuit breaker engineered for dependable overcurrent protection in the most demanding electrical installations. Designed for panelboards, switchboards, and control panels, this breaker integrates smoothly into distribution systems where uptime and safety are paramount.

Why this matters: A precise 20A rating targets common single-circuit protections, delivering reliable interruption when an overload or short occurs while minimizing unnecessary trips on neighboring circuits. The 1-Pole design provides streamlined protection for single-hot-leg circuits, making it ideal for a range of 120V applications in industrial, commercial, and OEM environments.

Key features and benefits

• Current rating: 20 A — optimally suited for typical branch circuits in lighting, control, and small motor-driven equipment
• Poles: 1-Pole — compact, flexible installation in constrained panel spaces
• Breaker type: Circuit Breaker — proven overcurrent protection to safeguard wiring and connected devices
• Application flexibility: Perfect for panelboards, switchboards, and control panels across industrial, commercial, and OEM settings

Ideal applications

• New installations in distribution panels for machinery, conveyors, and processing lines
• Upgrading or replacing worn breakers in motor control centers or service panels
• OEM equipment builds where reliable single-circuit protection is required in control panels
• Retrofits of existing systems needing consistent, predictable protection without redesigns

What makes it stand out

• Trusted Westinghouse performance in a compact 1-Pole format, enabling clean, organized panel layouts
• Clear, straightforward protection for single circuits, helping to maintain selective coordination within multi-circuit panels
• Durable construction designed for continual duty in both new builds and retrofit projects

Practical guidance for installation and use

• Verify compatibility with your panelboard, switchboard, or control panel’s mounting and bus compatibility before installation
• Ensure the circuit it protects is within the 20 A rating to prevent nuisance trips and maintain system reliability
• Install by qualified personnel in accordance with local codes and standards to maximize safety and performance

The Westinghouse 4989D52G16 delivers reliable, single-pole protection for critical distribution points, making it a practical choice for engineers and technicians who prioritize safety, consistency, and easy integration in industrial, commercial, and OEM environments.