Master 493B - Circuit Breaker

The Master 493B Circuit Breaker is engineered to deliver reliable overcurrent protection in the most demanding electrical environments. Designed for panelboards, switchboards, control panels, and OEM equipment, this Master breaker provides dependable protection for distribution networks and motor control centers where safe operation and uptime matter most.

Key Benefits

• Precise overcurrent protection with dependable trip behavior that reacts to overloads and short circuits, helping prevent wiring damage and equipment failures.
• Safe, predictable operation designed for continuous industrial use, reducing nuisance trips and ensuring reliable performance across environments.
• Versatile installation suitable for panelboards, switchboards, control panels, and OEM configurations, enabling streamlined integration into existing electrical architectures.
• OEM-ready reliability built to withstand industrial duty in distribution panels and motor control centers, supporting long service life and easy maintenance access.
• Maintenance-friendly design with straightforward replacement and clear labeling to minimize downtime during service windows.

Ideal Use Scenarios

• Manufacturing facilities with motor loads and feeders requiring dependable overload protection.
• Commercial buildings with centralized distribution panels and switchgear.
• OEM equipment where a robust, easy-to-integrate circuit breaker is needed.
• Motor control centers (MCCs) that demand reliable interruption during fault conditions.

How It Protects Your System

When current exceeds its rating, the 493B trips to interrupt the circuit, helping prevent insulation damage, conductor overheating, and downstream equipment failure. This protection translates to longer equipment life, reduced downtime, and safer operating conditions for personnel.

Installation & Compatibility

Designed to fit standard panel architectures used in industrial and commercial settings, the Master 493B is straightforward to install in panelboards, switchboards, and control panels. Choose the appropriate ampere rating and ensure correct mounting orientation and clear labeling according to your system’s electrical plan. For OEM applications, verify compatibility with your equipment interface and enclosure space to ensure a seamless fit.

Why Choose the Master 493B

Opting for the Master 493B means investing in a circuit breaker built for real-world reliability in distribution panels and motor control centers. Its design focuses on delivering safe, consistent protection where downtime is costly and protecting valuable electrical assets is essential.

Specifications at a Glance

• Breaker type: Circuit Breaker
• Applications: Panelboards, Switchboards, Control Panels, OEM Equipment
• Ideal for: Industrial, Commercial, and OEM environments requiring dependable overcurrent protection
• Protection scope: Distribution panels and motor control centers