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Compact & Modular design
- More compact overall dimensions and light weights.
- HITACHI ACB have been made three types of modular design creteria to facilitate their installation and integration in low voltage switch boards.
High breaking capacity
- HITACHI ACB provides high breaking capacity up to 100kA
Safety and Convenience
- OCR terminals are located in front
- Modulized mechanical part and accessories
- for easy maintenance and inspection Improved draw-out rail for easy draw-out
- Minimized arc space
- Molded frame
High Functional Digital Type Trip Relay
- Easy inspection by LCD
- -Load current value
-Setting values of each trip characteristics
-Fault current(Max) value
-Tripping time
- Self-diagnosis function
- -noEr : No error
-Err-1 : NoMTD coil
-Err-2 : Program error
-Err-4 : Configuration resister error
-Err-8 : Watch dog error
- Self-test function
- -It is available to check whether OCR is operated normally or not by applying external power
- Pre-alarm function
- Contact output of the each tripping cause and LED indication
- OCR alarm contact (AL,2a)
Variety of accessories
Optional accessories
- Interlock device
-MI (Mechanical Interlock)
- Key interlock, ON-Lock (K2)
- Key lock (K1)
- ON/OFF button lock (B)
- Door Frame (DF)
- Door Interlock (DI)
- UVT, UVT controller : Standard (1NO 1NC)
| TYPE |
Operating time |
Rated voltage |
| Instantaneous type |
under 0.2sec |
AC |
110, 220, 380, 460V |
| DC |
24, 48, 110, 125V |
| Delay type |
over 0.5sec |
AC |
110, 220, 380, 460V |
| DC |
24, 48, 110, 125V |
| over 3sec |
AC |
110, 220, 380, 460V |
| DC |
— |
- Cell switch (4C,8C)
- Shorting "b" contact (SBC, 5b max, Shorting b contact)
- Safety shutter lock (STL)
- Miss insertion prevent device (MIP)
- Condenser tripping device (CTD)
- OCR tester (OT)
Standard attachment of draw-out type
- pad lock
- Position indicator (connected, test, disconnected)
- Counter (5-digit)
- Lifting hook
- Insulating barrier
- OCR alarm contact (AL,2a)
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