Westinghouse 18D3 - 30A, 3-Pole, Circuit Breaker

The Westinghouse 18D3 brings dependable three-phase protection to your electrical distribution with a precise 30A, 3-pole circuit breaker design. Built to deliver reliable overcurrent protection in demanding environments, this unit helps keep panelboards, switchboards, and control panels operating safely and smoothly.

What makes it essential

Designed for industrial, commercial, and OEM applications, the 18D3 30A 3-Pole circuit breaker provides coordinated protection across all three phases. It reduces the risk of phase imbalance and protects critical equipment—from motors to feeders—against overloads and short circuits. Its robust construction is purpose-built for continuous operation in distribution panels and motor control centers, where safety and uptime matter most.

Key specifications

• Current rating: 30A
• Poles: 3-Pole
• Breaker type: Circuit Breaker

Ideal applications

• Panelboards, switchboards, and control panels that require reliable three-phase protection
• Distribution panels and motor control centers in industrial settings
• Commercial electrical systems with three-phase motors, conveyors, pumps, and processing equipment
• OEM equipment needing a 30A, 3-pole protection solution

Why choose the Westinghouse 18D3 30A 3-Pole breaker

Beyond basic protection, this breaker offers practical benefits for everyday operation: quick replacement in compatible panels, clear signaling of fault conditions across all three phases, and a design that integrates smoothly into existing Westinghouse-compatible electrical systems. When uptime and safety are non-negotiable, the 18D3 provides the consistent, dependable performance your distribution panels and motor control centers rely on.

For technicians and engineers, selecting a 3-pole, 30A circuit breaker in the Westinghouse family means streamlined maintenance, standardized protection, and clear readability in fault scenarios—keeping systems running efficiently and safely.