Eaton WMS-1C05 - 5A, 277VAC, 1-Pole, Circuit Breaker

Meet the Eaton WMS-1C05 — a compact, dependable 5A circuit breaker engineered for 277VAC systems. With a streamlined 1-Pole design, it fits neatly into panelboards, switchboards, and control panels where space is at a premium while delivering reliable overcurrent protection.

Key specifications

• Current rating: 5 A
• Voltage rating: 277VAC
• Poles: 1-Pole
• Breaker type: Circuit Breaker

Where and how you’ll use it

Ideal for industrial, commercial, and OEM applications where distribution panels and motor control centers require robust protection without sacrificing space. Use the WMS-1C05 to guard control circuits, lighting feeders, or other 277VAC circuits within panelboards, switchboards, and control panels, enabling safe, dependable operation in demanding environments.

Why this Eaton breaker stands out

• Space-saving 1-Pole design: A compact form factor that simplifies wiring and frees up panel space.
• Optimized for 277VAC systems: Rated for up to 277VAC, making it a natural fit for commercial distribution and motor control setups.
• Reliable overcurrent protection: Predictable interruption during fault conditions to protect conductors and connected equipment.
• Built for tough environments: Designed for everyday use in industrial and commercial settings where dependable performance matters.

Practical guidance and best-use tips

For optimal safety and performance, pair the WMS-1C05 with compatible Eaton panelboards and follow standard installation practices. Ensure the circuit’s continuous load and protection needs align with the 5 A rating, and plan coordinated protection within your distribution scheme. This breaker excels in distribution panels and motor control centers where space efficiency and precise fault protection are priorities.

Who should consider the Eaton WMS-1C05?

Electrical engineers, maintenance technicians, facilities managers, and OEM designers who need a dependable, space-efficient 1-Pole solution for 277VAC circuits will find the WMS-1C05 a practical choice for panel assemblies and control cabinets.