Type : NFB-□S(a) Type
Low Capacity Series (30AF ~ 225AF)
▷ Targets One-Class higher Breaking Performance
― Actualized the highest breaking capacity in same class with the highest rated breaking capacity of 25kA (AC 460V standard).
▷ Interchangeable Internal Accessory (User-Free)
― Auxiliary Cover can be open/close, so that user can easily attach accessories.
▷ Unification of main dimensions
― Standardized panel design and production by the unification of the Height of Terminal Block (24mm) and the Height of Name Plate (60mm).
High Capacity Series (400AF ~ 1,200AF)
▷ Targets One-Class higher Breaking Performance
― Actualized the highest breaking capacity in same class with the highest rated breaking capacity of 65kA (AC 460V standard).
▷ Perfect compatibility
― There is no inconvenience in applying new products to switchboard because the frame size is same as other company’s.
▷ Interchangeable Internal Accessory (User-Free)
― Auxiliary Cover can be open/close, so that user can easily attach accessories.
▷ Convenient operation
― Production of 4 Pole and supplying External Operation Handle as a standard part
Frame(AF) | Pole | MCCB(Type) | Rated Current(A) | Rated Interrupting Current(kA) | ||
220V | 460V | 600V | ||||
30 | 2 | NFB-32S | 5,10,15,20,30 | 10 | 7.5 | 2.5 |
3 | NFB-33S | |||||
50 | 2 | NFB-52S | 5,10,15,20,30,40,50 | 25 | 10 | 5 |
3 | NFB-53S | |||||
4 | NFB-54S | |||||
60 | 2 | NFB-62S | 60 | 25 | 10 | 5 |
3 | NFB-63S | |||||
4 | NFB-64S | |||||
100 | 2 | NFB-102Sa | 15,20,30,40,50 60,75,100 | 50 | 25 | 10 |
3 | NFB-103Sa | |||||
4 | NFB-104Sa | |||||
225 | 2 | NFB-202S | 125,150,175 200,255 | 50 | 25 | 10 |
3 | NFB-203S | |||||
4 | NFB-204S | |||||
400 | 2 | NFB-402S | 250,300,350,400 | 50 | 35 | 22 |
3 | NFB-403S | |||||
4 | NFB-404S | |||||
600 | 3 | NFB-603S | 500,600 | 100 | 50 | 35 |
4 | NFB-604S | |||||
800 | 3 | NFB-803S | 700,800 | 100 | 50 | 35 |
4 | NFB-804S | |||||
1000 | 3 | NFB-1003S | 1000 | 100 | 65 | 45 |
4 | NFB-1004S | |||||
1200 | 3 | NFB-1203S | 1200 | 100 | 65 | 45 |
4 | NFB-1204S |
Auxiliary Switch (AX)
Device for the control of circuit or using various indication lamps.
Accessory indicating ON/OFF status of a breaker
Maximum number of attachment (3 pole product)
- 30AF ~ 225AF: 2 pcs
- 400AF ~ 800AF: 4 pcs
- 1000AF, 1200AF: 2 pcs
Alarm Switch (AL)
Accessory for the Alarm indication through lamp or buzzer when MCCB trips.
Maximum number of attachment (3 pole product)
- 30AF ~ 225AF: 2 pcs
- 400AF ~ 800AF: 4 pcs
- 1000AF, 1200AF: 2 pcs
Voltage Trip Device (SHT)
Accessory which trips MCCB by applying voltage remote
Maximum number of attachment (3 pole product)
- 30AF ~ 225AF: 1 pcs
- 400AF ~ 800AF: 2 pcs
- 1000AF, 1200AF: 1 pcs
Undervoltage Trip Device (UVT)
Accessory for the preventing the damage in circuit by the sudden voltage drop
Maximum number of attachment (3 pole product)
- 30AF ~ 225AF: 1 pcs
- 400AF ~ 800AF: 2 pcs
- 1000AF, 1200AF: 1 pcs
Insulation Barrier
Accessory for the insulation between the phases in terminal and preventing the accident arised from incoming of conductive foreign substance (Basic specification)
Terminal Cover
Accessory for covering the terminal parts of power and load sides to conform to IEC Standard of MCCB. It prevents electric shock and the incoming of foreign substances to terminal.
External Operation Handle
Accessory for operating and confirming ON, OFF, Trip status of MCCB closing panel cover