EntelliGuard® G circuit breakers are the newest line of GE low-voltage circuit breakers, the next step in the evolution of a line known for its exceptional reliability and performance. They are available in 3- and 4-pole designs rated from 400A to 6000A, with fault interruption ratings up to 150kAIC.
Now with 600V & 1000V DC Photovoltaic Switch Ratings, UL489B − 800A−3200A, 30kA Interruption with or without isolating both DC legs − Time Constant (L/R) = 15msec
Now with 100KAIC @ 635V AC in an Envelope 2 Breaker (400A − 3200A).
EntelliGuard®TU Trip Unit
Integral to the EntelliGuard G breakers are the new, state-of-the-art EntelliGuard TU Trip Units, which provide superior system protection, system reliability, monitoring and communications.The breaker-trip unit system delivers superior circuit protection without compromising either selectivity or arc flash protection.
The EntelliGuard breaker-trip unit system demonstrates yet again GE’s core competencies in reliable electric power distribution, circuit protection and personnel protection.
Arc Flash Protection and Selectivity: Now you don't have to choose
Reliable circuit and equipment protection has always been the circuit breaker’s primary purpose. Providing appropriate overcurrent protection while preserving selective coordination to maximize system reliability is the main goal of virtually every system designer. And that was once good enough. It isn't anymore.
Modern economic reality and the regulatory environment demand system performance while recognizing the need to protect against the arc flash hazards that expose maintenance personnel to dangerous levels of heat, electrical energy, debris from damaged equipment and concussive forces. The challenge is to provide both better personnel protection by minimizing arc flash hazards and maintain electrical power to mission-critical loads. But these objectives often seem to conflict, pitting the speed and sensitivity required to optimize safety against the sequence of operations and interlocking required to maximize power system availability.
The EntelliGuard G breaker-trip unit system meets the challenge. It achieves selectivity in a wide range of situations without excessive sacrifice of arc flash protection. With its Reduced Energy Let-through setting (RELT), the system protects at HRC1 or 2 for available fault currents as high as 100kA.