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Air Circuit Breakers (AKH, AKS, AKN Series)
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Catalog-Hitachi Industrial Equipment Systems-Switches & Breakers-Air Circuit Breakers (AKH, AKS, AKN Series)
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HITACHI INDUSTRIAL EQUIPMENT SYSTEMS

산업용 전동기, 가변주파수 드라이브(VFD), 교류 서보, 급수 펌프, 고압 블로워 등

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140242
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Air Circuit Breakers (AKH, AKS, AKN Series)
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Overview

Full line-up & Compact

Up to 6300A, ACB provides fully lined-up 3 frame.For each frame, there is just one size, which is smaller and more compact. It makes it possible for you to design the optimized volume panel.

* The highest breaking capacity:150kA (6300AF at 500VAC)
* 3 ampere frame sizes:2000/4000/6300AF
* N phase current conducting capacity: 100%

 

Trip relay

N type

  • L/S/ I /G/Thermal
  • Self Power
  • RTC Timer mounted
  • Fault information (LED)

A type

  • L/S/ I /G/Thermal
  • ZSI
  • Remote Reset
  • Modbus /RS-485
  • Probus-DP
  • Self Power
  • AC/DC 100 – 250V
  • DC 24 – 60V
  • RTC Timer mounted
  • Fault Recording (10EA)

P/S type

  • L/S/ I /G/Thermal (Continuous)
  • US/OV/OF/RF/ rP/Vun/Iun
  • Measurement: V/A/W/Wh/F/PF
    Harmonics (63th), Waveform (S Type)
  • ZSI
  • Remote Reset
  • Modbus/RS-485
  • Profibus-DP
  • AC/DC 100 – 250V
  • DC 24 – 60V
  • RTC Timer mounted
  • Event Recording (256EA)
  • Fault Recording (256EA)
  • Fault Wave (S Type)

 

Trip relays series

N Type (Normal) Self-power + Current protection
A Type (Ammeter) Current Meter + Current protection + DO control + Communication
P Type (Power Meter) A type + Power Meter + Voltage/Frequency/Unbalance protection
S Type (Supreme) P type + Harmonics analysis (63 th) + Fault wave recording

 

 

External configuration

ACB

Fixed type ACB

 

Draw-out ACB (Cradle)

 

Terms

(1) Trip relay
(2) Counter
(3) ON button
(4) OFF button
(5) Charge handle
(6) Rated name plate
(7) Charge/Discharge indicator
(8) ON/OFF indicator
(9) Corporation logo
(10) Arc cover
(11) Terminal cover
(12) Cradle
(13) Draw-out handle
(14) Position indicator
(15) Handle storage space
(16) Pad lock button
(17) Art chute
(18) Control cover
(19) Fixed type bracket

 

Cradle

Internal

 

Rear

 

Terms

(1) Trip relay
(2) Counter
(3) ON button
(4) OFF button
(5) Charge handle
(6) Rated name plate
(7) Charge/Discharge indicator
(8) ON/OFF indicator
(9) Corporation logo

 

 

Internal configuration

Terms
(1) Arc chute (10) Trip coil
(2) Aux. switch control terminal (11) Closing coil
(3) Control power supply terminal (12) Motor Ass'y
(4) Trip relay control terminal (13) Aux. switch
(5) Carrying grip (14) ON button
(6) Trip coil or UVT coil (15) OFF button
(7) Mechanism (16) MTD base
(8) Main body (17) Trip relay
(9) Counter (18) Front cover

 

Terms
(1) Control circuit terminal block (11) Draw-in/out device
(2) Control terminal (12) Arc extinguishing part
(3) Auxiliary switches (13) Moving contact
(4) Closing, Trip, UVT coil (14) Fixed contact
(5) Trip relay (15) Conductor on line side
(6) Front cover (16) Cradle nger
(7) Mechanism (17) Cradle
(8) Charge handle (18) Connecting conductor
(9) Trip spring (19) Power supply CT
(10) Closing spring (20) Conductor on load side

 

 

Trip relays

The trip relay of ACB provides the additional protection functions for voltage, frequency, unbalance, and others in addition to main protection functions for over current, short-circuit, ground fault. It supports the advanced measurement functions for voltage, current, power, electric energy, harmonics, communication function, and others.
Analog trip function interlocked with mechanism enhanced a durability of devices as well as the breaking capacity of ACB.
Zone selective interlocking function makes the protective coordination more simple and thermal memory can be applied to various loads.

 

 

HITACHI INDUSTRIAL EQUIPMENT SYSTEMS
산업용 전동기, 가변주파수 드라이브(VFD), 교류 서보, 급수 펌프, 고압 블로워 등
“Connect, Link”를 통해 새로운 가치를 창출하며, Hitachi Industrial Equipment Systems는 미래의 글로벌 사회에 기여하고 있습니다.   디지털 기술의 최근 진화와 글로벌 개발의 가속화는 고객에게 다양한 비즈니스 도전을 제시합니다. Hitachi Industrial Equipment Systems에서는 OT*1, IT, 제품을 결합하여 사회적 혁신 비즈니스를 촉진하고 있습니다.   Hitachi Industrial Equipment Systems는 IoT를 활용한 제품 및 솔루션을 제공하여 경영부터 공장 현장까지의 원활한 최적화를 추구합니다. 우리는 사회적 가치, 환경 가치, 경제적 가치 개선에 초점을 맞추고 있습니다.   우리의 목표는 고객에게 장기적이고 가치 있는 파트너가 되는 것입니다.
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