DNH7 Fuse Switch Disconnector
DNH7 series fuse type load isolating switch is applicable to high short circuit current circuit with AC 50(60)Hz, voltage up to 660V and rated working current up to 1600A.
It possesses upper and lower end input and output structure. Lead in equipment with knife-edge and arc extinguishing equipment, and also can be operated with load.
It is used as power switch, isolating switch and emergency switch,and for protecting current.
| Model | DNH7-160A | DENH7-250A | DNH7-400A | DNH7-630A | |||||||||
| Fuse | NH00(NT00) | NH1(NT1) | NH2(NT2) | NH3(NT3) | |||||||||
| Rated operational voltage Ue V | 400 | 500 | 690 | 400 | 500 | 690 | 400 | 500 | 690 | 400 | 500 | 690 | |
| Rated operational current Ie A | 125 | 160 | 125 | 250 | 200 | 400 | 315 | 630 | 500 | ||||
| Thermal current w/fuse link Ith A | 160 | 250 | 400 | 630 | |||||||||
| Rated insulation voltage Ui V | 1000 | ||||||||||||
| Rated impulse withstand voltage Uimp V | 8000 | ||||||||||||
| Fuse protected short circuit making kA ms | 50 | ||||||||||||
| Rated making and breaking capacity | AC23B | AC22B | AC21B | AC23B | AC22B | AC21B | AC23B | AC22B | AC21B | AC23B | AC22B | AC21B | |
| Rated frequency Hz | 50/60 | 50/60 | 50/60 | 50/60 | |||||||||
| Power loss at Im without fuse-link/phase W | 12W | 23W | 34W | 48W | |||||||||
| Electrical durability | 200 | 200 | 200 | 200 | |||||||||
| Mechanical durability | 1400 | 1400 | 800 | 800 | |||||||||
| Degree of protection | Open | IP20 | IP20 | IP20 | IP20 | ||||||||
| Closed | IP30 | IP30 | IP30 | IP30 | |||||||||
| Packing | |||||||||||||
| Gross weight (Kg) | |||||||||||||
| Note: Our products update constantly.The technical parameter is for reference only.Please refer to our real product.And contact me ! | |||||||||||||
1 How long is your products warranty ?
A: The warranty period of our products is 18 months.
2 What is the material of your products?
A: The plastic is class V0 of inflaming retarding.
3 How about inspection?
A: We have the whole inspection system from raw material to end products include temperature rise test,salt spraying test conductor type test,mechanical life test and so on.
4 What do you have for certificate?
A: Our products are passed through IEC60947-3 and IEC60269-2 standarded.
5 What is payment terms?
A: T.T,Paypal,Western Union and L/C isacceptable.
6 What is the service offered by company?
A: We have the professional enginer team which can design and develop the mold to arrive different customer nequirement.
We also have the sales team to offer good service from pre-sale to after-sale.
7 How to become the agents for GRL?
A: It is OK! We will depend on the sales turn over and also do research on your market. If your have interest,let us discuss more !
