The 3 phase fused disconnect switch produced by GRL Company usually refers to the non-outdoor fuse switch. The ac fuse switch is commonly used in the electric power field.
The ac power switch with fuse is collectively referred to as the 3 phase switch fuse unit, or it can be 3 single phase The fused disconnect switch is combined into a 3P nh fuse switch disconnector.
Common voltage 48v fused disconnect switch, 480v fused disconnect switch, 240v fused disconnect switch, 500v fused disconnect switch, 600v fused disconnect switch, 690v fused disconnect switch, 800v fused disconnect switch.
Product description:
This type of fused electrical switch is a 3 phase fused disconnect switch, model DNH1G. It is used together with NH series fuses, so it is commonly called nh fuse switch disconnector, and it can also be called blade fuse switch with an isolation knife.
This fuse switch produced by GRL has a unique appearance, different current specifications, and different materials. The main material of the shell is PA66 resistance V0, PC, DMC, composition. The copper parts are made of red copper.
Product parameters:DNH1-160/30G
Selection Help.
| Structure description | Match fuse size | Mounting method | Product model | Item No. |
| Normal type | 00 | Fixed type | DNH1-160/30G | DN31001 |
| With 1NO+ 1NC auxiliary contactor | 00 | Fixed type | DNH1-160/30G | DN31011 |
Parameter Description
| With fuse | Rated voltage | Ue | V | AC380 | AC660 |
| Rated current | Ie | A | 160 | 100 | |
| Conventional thermal current | Ith | A | 160 | 100 | |
| Rated short-time withstand current | kA | 100 | 50 | ||
| Rated insulation voltage | Ui | V | 800 | ||
| Rated impulse withstand voltage | Uimp | kV | 8 | ||
| Utilization category | AC-23B | ||||
| AC-22B | |||||
| AC-21B | |||||
| AC-20B | |||||
| Electric endurance times | Times | 200 | |||
Read GRL 3 Phase Fused Disconnect Switch Busbar type DNH1-160/31G
Product parameters:DNH1-250/30G
Selection Help.
| Structure description | Match fuse size | Mounting method | Product model | Item No. |
| Normal type |
1 |
Fixed type | DNH1-250/30G | DN31101 |
| With 1NO+ 1NC auxiliary contactor |
1 |
Fixed type | DNH1-250/30G | DN31111 |
| With 2 (1NO+ 1NC auxiliary contactor) |
1 |
Fixed type | DNH1-250/30G | DN31121 |
Parameter Description
| With fuse | Rated voltage | Ue | V | AC380 | AC660 |
| Rated current | Ie | A | 250 | 200 | |
| Conventional thermal current | Ith | A | 250 | 200 | |
| Rated short-time withstand current | kA | 100 | 50 | ||
| Rated insulation voltage | Ui | V | 800 | ||
| Rated impulse withstand voltage | Uimp | kV | 8 | ||
| Utilization category | AC-23B | ||||
| AC-22B | |||||
| AC-21B | |||||
| AC-20B | |||||
| Electric endurance times | Times | 200 | |||
Read GRL 3 Phase Fused Disconnect Switch Busbar type DNH1-250/31G
Product parameters:DNH1-400/30G
Selection Help.
| Structure description | Match fuse size | Mounting method | Product model | Item No. |
| Normal type |
2 |
Fixed type | DNH1-400/30G | DN31201 |
| With 1NO+ 1NC auxiliary contactor |
2 |
Fixed type | DNH1-400/30G | DN31211 |
| With 2 (1NO+ 1NC auxiliary contactor) |
2 |
Fixed type | DNH1-400/30G | DN31221 |
Parameter Description
| With fuse | Rated voltage | Ue | V | AC380 | |
| Rated current | Ie | A | 400 | ||
| Conventional thermal current | Ith | A | 400 | ||
| Rated short-time withstand current | kA | 50 | |||
| Rated insulation voltage | Ui | V | 690 | ||
| Rated impulse withstand voltage | Uimp | kV | 12 | ||
| Utilization category | AC-23B | ||||
| AC-22B | |||||
| AC-21B | |||||
| AC-20B | |||||
| Electric endurance times | Times | 200 | |||
Read GRL 3 Phase Fused Disconnect Switch Busbar type DNH1-400/31G
Product parameters:DNH1-630/30G
Selection Help.
| Structure description | Match fuse size | Mounting method | Product model | Item No. |
| Normal type |
3 |
Fixed type | DNH1-630/30G | DN31301 |
| With 1NO+ 1NC auxiliary contactor |
3 |
Fixed type | DNH1-630/30G | DN31311 |
| With 2 (1NO+ 1NC auxiliary contactor) |
3 |
Fixed type | DNH1-630/30G | DN31321 |
Parameter Description
| With fuse | Rated voltage | Ue | V | AC380 | |
| Rated current | Ie | A | 630 | ||
| Conventional thermal current | Ith | A | 630 | ||
| Rated short-time withstand current | kA | 50 | |||
| Rated insulation voltage | Ui | V | 690 | ||
| Rated impulse withstand voltage | Uimp | kV | 12 | ||
| Utilization category | AC-23B | ||||
| AC-22B | |||||
| AC-21B | |||||
| AC-20B | |||||
| Electric endurance times | Times | 200 | |||
Read GRL 3 Phase Fused Disconnect Switch Busbar type DNH1-630/31G
Capacity to support：
Capacity to support: 50000 pcs/Sets per Month
15 amp fused disconnect switch, 20 amp fused disconnect switch, 30 amp fused disconnect switch,
60 amp fused disconnect switch, 100 amp fused disconnect switch, 200 amp fused disconnect switch,
250 amp fused disconnect switch, 400 amp fused disconnect switch, 600 amp fused disconnect switch,
630 amp fused disconnect switch, 800 amp fused disconnect switch, 1000a fused disconnect switch1000a,
1600 amp fused disconnect switch, 1200 amp fused disconnect switch, 2000 amp fused disconnect switch
Get the latest GRL NH fuse switch disconnector product cataloge now
3 Phase Fused Disconnect Switch Packaging Details: International Packing Carton + pallet
16a fused switch,20a fused switch,30a fused disconnect switch,100a fused disconnect switch, 160a fused disconnect switch 18pcs/carton
125a fused disconnect switch,200a fused disconnect switch,250a fused disconnect switch,250a fuse switch,6pcs/carton
400 amp fused disconnect switch,630 amp fused disconnect switch,800 amp fused disconnect switch 4pcs/carton
3 Phase Fused Disconnect Switch is Divided into fixed installation and busbar installation
Newly developed with electronic functions. At the same time, there are two types of wiring methods, one can be connected by traditional bolts, and the other can be connected by clips.
Fuse switches are manufactured according to international standards such as IEC 60947-3 and DN60269-2.
Fuse switches are manufactured according to international standards such as IEC 60947-3.
Read GRL article on what is a fused disconnect switch？
3 Phase Fused Disconnect Switch type DNH1G: it can be equipped with microswitch accessories, lock function, fuse detection function, and remote control function.
600 v fused disconnect switch 200 amp fused disconnect switch
3 Phase Fused Disconnect Switch type DNH1: it has the function of locking, microswitch accessories, and there is no fuse detection controller, so it cannot carry out remote control function.
600v fused disconnect switch 250 amp fused disconnect switch
3 Phase Fused Disconnect Switch Fuse disconnect switch type DNH7: it can be equipped with microswitch accessories and has no locking function.
Click to view grl DNH7-160 product>>
600v fused disconnect switch 400 amp fused disconnect switch
3 Phase Fused Disconnect Switch wiring
DNH1G: matching terminal 160A M8 bolt, 250a-400a M10 bolt, 630A M12 bolt, bolt 8.8 grade
DNH1: matching terminal 160A M8 bolt, 250a-400a M10 bolt, 630A M12 bolt, bolt 8.8 grade
DNH7: matching terminal 160A M8 bolt, 250a-400a M10 bolt, 630A M12 bolt, bolt 8.8 grade
DNH1G: matching cable square number 160A 16-70 mm², 250A -400a 25-150 mm², 630A 25-240 mm²
DNH1: matching cable square number 160A 16-70 mm², 250A -400a 25-150 mm², 630A 25-240 mm²
DNH7: matching cable square number 160A 16-70 mm², 250A -400a 25-150 mm², 630A 25-240 mm²
600v fused disconnect switch 600 amp fused disconnect switch
DNH1G switch type fuse : 100 amp fused disconnect switch,200 amp fused disconnect switch, 250 amp fused disconnect switch,400 amp fused disconnect switch, 600 amp fused disconnect switch,800 amp fused disconnect switch
DNH1 switch type fuse : 60 amp fused disconnect switch, 100 amp fused disconnect switch, 200 amp fused disconnect switch,400 amp fused disconnect switch, 630 amp fused disconnect switch。
DNH7 switch type fuse : 160 amp fused disconnect switch,250 amp fused disconnect switch, 400 amp fused disconnect switch,630 amp fused disconnect switch, 800 amp fused disconnect switch
600v fused disconnect switch 800 amp fused disconnect switch
Fused electrical switch selection principle of fuse:
Fuse NH00 matching specifications 100A fused disconnect switch, 125A fused disconnect switch, 160A fused disconnect switch
Fuse NH1 matching specifications 200A fused disconnect switch, 250A fused disconnect switch and 250A fuse switch
Fuse NH2 matching specification 400 amp fused disconnect switch
Fuse NH3 matching specifications 630 amp fused disconnect switch, 800 amp fused disconnect switch
Note: the selection principle of isolating knife is consistent with the fuse standard.
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