Eaton Circuit Breaker Bases & Accessories
Eaton circuit breaker accessories are designed specifically for use with Eaton circuit breakers and molded case switches in industrial, commercial, and utility power distribution applications. Accessory devices provide valuable control, signaling and remote operation features beyond the standard overcurrent switching functionality delivered by a circuit breaker frame. Accessories are widely used in switchgear, panelboard, motor control center (MCC), generator transfer, and other critical power circuit installations containing Eaton molded case breakers.
Eaton manufactures a broad range of factory-approved circuit breaker accessory products for auxiliary contacts, alarm indicators, shunt trips, undervoltage releases, motor operators, rotary handle and shaft operators, door-coupling accessories, communications interface modules and more. These electrical accessories, also known as internal accessories, breaker options, breaker add-ons, or add-on modules, enable users and automation equipment to indicate or monitor breaker trip status, conduct emergency or automated tripping, and operate remotely as part of a safety interlock, supervisory control, automation control, or machine control system.
More Information about Eaton Circuit Breaker Bases & Accessories
Many Eaton accessories are wired to relay signals or communication signals to PLCs, DCS systems, SCADA systems, HMIs or building management systems. Eaton circuit breaker accessories are engineered for compatibility with select circuit breaker families and frame sizes, facilitating superior fit and finish, consistent performance, and UL approval when used as a system. Many accessories are designed for field installation in the breaker or MCCB, streamlining upgrade projects, aftermarket customization, and mission-critical electrical infrastructure expansion. This third-party compatibility with legacy electrical system investments makes them a smart choice for both retrofit and new construction power distribution projects.
FAQs
What are Eaton circuit breaker accessories used for?
Eaton circuit breaker accessories are used to add control, monitoring, and safety functionality to circuit breakers, such as remote tripping, status indication, emergency shutdown, and automation system integration.
What types of circuit breaker accessories does Eaton offer?
Eaton offers auxiliary and alarm contacts, shunt trip devices, undervoltage releases, motor operators, rotary handles, door-coupling mechanisms, and communication accessories designed for Eaton breaker families.
What is an Eaton shunt trip accessory?
An Eaton shunt trip allows a circuit breaker to be tripped remotely when an external voltage signal is applied. It is commonly used for emergency stop circuits, fire alarm integration, and automated safety shutdown systems.
What does an Eaton undervoltage release do?
An Eaton undervoltage release trips the circuit breaker when supply voltage drops below a safe level, helping prevent automatic restart of equipment when power is restored and improving personnel and equipment safety.
Are Eaton circuit breaker accessories compatible with automation systems?
Yes, many Eaton breaker accessories are designed to integrate with PLCs, SCADA systems, and building management systems, enabling centralized monitoring, remote operation, and real-time fault signaling.