RT18 series cylindrical fuse
The RT18 series cylindrical fuses are applicable to power distribution equipment of industrial electrical installations with AC 50Hz，rated voltage up to 38oV and rated current up to 63A, serving for overoad and short-circuit protection of circuits.(This type of fuse is not recommended for capacitor cabinets; if used in capacitor cabinets, it is recommended to adopt RT16-00 as an alterative.)
Fuse link blown indicator (code: “X”) for fuse base, composed of neon lamp and resistor.
Compliant Standards: GB/T 13539.2, IEC 60269-2.
Product Overview
The RT18 series cylindrical fuses are applicable to power distribution equipment of industrial electrical installations with AC 50Hz，rated voltage up to 38oV and rated current up to 63A, serving for overoad and short-circuit protection of circuits.(This type of fuse is not recommended for capacitor cabinets; if used in capacitor cabinets, it is recommended to adopt RT16-00 as an alterative.)
Fuse link blown indicator (code: “X”) for fuse base, composed of neon lamp and resistor.
Compliant Standards: GB/T 13539.2, IEC 60269-2.
Product Naming Rules
Fuse link parameters
| Model | Model Equivalent | Size(CxL) | Rated voltage (V) |
Rated current (A) |
Power loss(W) | Rated breaking capacity(kA) |
||
| RT18-32 | RT28-32、RT14-20 RT19-32、RT29-32 R015 |
10×38 | 380 | 2,4,6,8,10,16, 20,25,32 |
≤3 | 100 | ||
| RT18-63 | RT28-63、RT14-32 RT19-63、RT29-63 R016 |
14×51 | 380 | 2,4,6,8,10,16,20,25,32,40,50,63 | ≤5 | 100 | ||
Fuse Base
| Model of fuse support (base) | Fuse Base | |||||||
| Size | Model of fuse link | Current(A) | ||||||
| RT18-32、RT18-32X、RT18-32L、RT18-32XL | 10×38 | RT18-32、RT19-32、RT14-20、R015 | 2,4,6,8,10,16,20,25,32 | |||||
| RT18-63、RT18-63X、RT18-63L、RT18-63XL | 14×51 | RT18-63、RT19-63、RT14-32、R016 | 16,20,25,32,40,50,63 | |||||
| RT18-125L、RT18-125XL | 22×58 | RT19-125、RT14-63、R017 | 25,32,40,50,63,80,100,125 | |||||
Normal working conditions and installation conditions
1.Ambient temperature: Shall not exceed 40 °C: the 24-hour average measured value shallnot exceed 35°C, and the annual average measured value shall be lower than the aforesaid value. The minimum ambient air temperature shall be -5°C.2.Altitude: Shall not exceed 2000 meters.
3.Atmospheric conditons: The alir shall be clean. The relative humidity shall not exceed 50% at the maximum temperature of 40 °C；higher relative humidity is permissible at lower temperatures. For instance, the relative humidity may reach 90% at 20°C. Under such conditions, moderate condensation may occasionally occur due to temperature fluctuations.
4.Pollution degree: Class 3.
5.Installation category: Category III .
6.Should the service conditions differ from the above requirements, please consult the manufacturer
Appearance and installation dimensions
Ordering Instructions
When placing an order, the following details must be specified:
For fuse links: Specify product model, rated current and quantity.
For fuse bases: Specify model & specifications, mark “base” and state the order quantity.
Order Examples
RT18-32/32A 100 pcs: 100 pieces of fuse links, model RT18-32 with rated current 32A.
RT18-32 (Base) 100 pcs: 100 pieces of fuse bases, model RT18-32.
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