Eaton WMS3D20 20A 3-Pole 480 V Circuit Breaker Potential Transformer

Meet the Eaton WMS3D20, a rugged 3-pole circuit breaker built to protect 480V three‑phase systems. With a 20A current rating and part number WMS3D20, this unit is designed for reliable overcurrent protection in demanding industrial environments, from motor control centers to complex distribution panels.

• Current rating: 20 A
• Poles: 3
• Voltage rating: 480 V
• Part number: WMS3D20

Why this model stands out in a busy electrical room:

• Three‑phase protection in one package: The 3‑pole design ensures synchronized interruption across all phases, reducing the risk of unbalanced loads and equipment damage.
• Industrial‑grade reliability: Built for continuous operation in demanding environments, it delivers consistent performance where uptime matters most.
• Clear compatibility and procurement: As the Eaton WMS3D20, it integrates smoothly with Eaton panels and distribution architectures, simplifying installation and future maintenance.
• Precise suitability for 480V systems: Optimized for medium‑voltage plant distribution, wiring closets, and MCCs that operate at four‑ to five‑digit amperage demands.

Ideal use scenarios include retrofitting aging infrastructure, protecting feeders to motors and reactors, and stocking spare breakers for quick replacements in 480V, three‑phase facilities. This model is especially well suited for manufacturers, data centers with stringent reliability needs, and industrial engineers who value a trusted, long‑lasting protection solution from a reputable brand.

Practical considerations for installation and operation:

• Ensure proper compatibility with Eaton panels and bus configurations to maintain warranty and performance.
• Follow standard electrical codes and torque guidelines during terminal connections to guarantee secure, low‑resistance terminations.
• Use as part of a broader protection scheme that includes appropriate metering and protection coordination for robust system safety.

Choose the Eaton WMS3D20 20A 3‑Pole 480V circuit breaker when you need dependable, straightforward three‑phase protection that aligns with Eaton’s legacy of quality and ease of maintenance. A practical, durable choice for modern industrial power distribution.