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Air circuit breakers

Air circuit breakers

Air circuit breakers

Product catalog summary
Overview: The document provides detailed technical specifications and features of ETIPOWER Air Circuit Breakers (ACBs), highlighting their unique 'Double Break' system, compact design, and advanced protection capabilities.
Specifications: ETIPOWER ACBs are available in three frame sizes ranging from 800A to 6300A, with a voltage capacity up to 690V. They offer two levels of breaking capacity: Type S (standard) from 65kA to 100kA and Type H (high breaking capacity) from 80kA to 120kA. The ACBs are equipped with three types of over-current releases (OCRs): AGR-11, AGR-21/22B, and AGR-31B, each providing varying levels of protection and measurement capabilities.
Design and Features: The 'Double Break' system allows for two breaking contacts per phase, enhancing the short time withstand rating. The compact design results in space savings in switchboards. The ACBs dissipate arc energy internally, allowing zero clearance distance to nearby earthed metal, minimizing switchboard height and costs. They also feature RMSD sensing over-current release with LSI characteristics for adjustable time delay on overload and I2t ramp characteristics.
Installation and Maintenance: ETIPOWER ACBs offer flexible terminal arrangements (vertical, horizontal, front connections) and are available in both draw-out and fixed versions. The main contacts are easily replaceable, enhancing reliability and service life. The ACBs include features like a mechanical ON-OFF cycle counter, padlockable buttons, and position padlock lever for enhanced security and operational safety.
Protection and Safety: The ACBs provide IP20 protection with an optional IP31 or IP55 cover for enhanced safety. They include a key lock system to prevent unauthorized operation and ensure the breaker remains in the desired position. The EP Z Interlock system ensures the breaker nearest the fault trips first, regardless of short time delay settings.
Applications: ETIPOWER ACBs are designed for protecting distribution lines, generators, and other electrical equipment from overload and short-circuit currents. They are suitable for critical UPS circuits and low voltage systems, offering ultimate reliability and control system redundancy.
Technical Data: The document includes detailed tables with technical data such as rated current, operational voltage, breaking capacity, mechanical and electrical life, and dimensions for various models of ETIPOWER ACBs.
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Catalog excerpts

Air circuit breakers-1

Power needs control

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Air circuit breakers-2

Экономия Saved space пространства Advantages of Air Circuit Breakers ETIPOWER  ETIPOWER ACBs have the world's smallest depth resulting in space saving in switchboards.  ETIPOWER is the world's first "Double Break" ACB, having two breaking contacts per phase, what means that the short time withstand rating (ICW, 1sec) is equal to ICS for all models.  Three types of main circuit terminal arrangements are available: - vertical terminals, - horizontal terminals, - front connections. Different types of terminal arrangements can be specified for the line and load sides. "Double Break" system  The...

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Air circuit breakers-3

Air Circuit Breakers EP Z Interlock 'A' 'Trips' Actual Fault Zone  The EP6 ACB interrupts the current at two points on the line side while dissipating heat from contacts or terminals by efficient air convection through a pressure valve. Example of EP Zone interlock Function  An ON-OFF button cover prevents inadvertent or unauthorized operation of the ON or OFF button. It can be locked with up to three padlocks.  In conventional discrimination systems, short time delays are used to allow a short-circuit current to be tripped by the circuit breaker nearest the fault. With the ETIPOWER Z Interlock...

 Open the catalog to page 3
Air circuit breakers-4

Application - Air circuit breakers ETIPOWER are used for protection of distribution lines, generators and other electrical equipment from effects of overload and short-circuit currents. Air circuit breakers ETIPOWER are available in 3 frame sizes from 800A to 6300A, with a voltage up to 690V: size 1: current from 800 to 2000A size 2: current 2500 to 3200A (Type SB at 4000A made in 2 sizes) size 3: current 4000A - 6300A Sizes 1 and 2 have two versions, draw-out and fixed. There are many options for connecting and wide range of accessories. Two types of level breaking capacity: Type S (standard)...

 Open the catalog to page 4

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