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XRNM1 Current-limiting fuses for motor protection
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XRNM1 Current-limiting fuses for motor protection
1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln
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Product Details
● The product can be used in indoor AC system of 50Hz and rated voltage 3.6kV and 7.2KV 12Kv. When used togetherwith other protection facilitles(such as switches and vacuum contactors)，it works to protect high-volttagemotor and other electric facilities from overloading and circrit break.
Selection
Technical data
| Rated voltage(Kv) | Rated break current KA | Rated current of the fuse (A) | Rated current of the fuse link (A) | Major dimensions | ||||
| A | B | C | D | |||||
| XRNM1-3.6 | 3.6 | 50 | 125 | 50,63,100,125 | 337（390） | 254（312） | 305（340） | 51 |
| 200 | 125,160,200 | 76 | ||||||
| 400 | 250,315,355,400 | |||||||
| XRNM1-7.2 | 7.2 12 |
160 | 25,31.5,40,50,63,80,100,125,160 | 486（500） | 403（461） | 454（150） | 76 | |
| 315 | 200,224,250,315 | |||||||
Note:
1.The aboveid rated parameters for single pipe,the fuses can be parallel connected by on-site structure to get a high rated current. 2.Sizes in the bracket are for inserting fuses.
Features
1. In required working conditions,the fuse can break any fault current between the minimum break current 1.6-3 and therated break current.
2. See Chart 3 for time-current property.The section above the minimum break current is by dotted line.
3. See Chart 4 for current limit property.
4. See Chart 5 forl²t property.
Overall and mounting dimensions(mm)
Chat1 Busbar fuse lnstallation Dimensions
Chat2 Inserting fuse lnstallation Dimensions
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