PRW -12F / 200 Series with a load drop-out fuse

Model NO.: PRW -12F / 200 Type: Current Fuse Shape: Tablet Fusing Device: Pop-up Solid Rated voltage: 12 kV Frequency: 50 Hz Specification: IEC Breaking Capacity: High Usaga: High Voltage Fusing Speed: F Standard: IEC Fuse rated current: 200 A Trademark: Tianan Electric PRW -12F / 200 Series with a load drop-out fuse
 
1. Product Description
        PRW-12F/200 Series fuse rated voltage 10KV, rated current of 200A or less, the frequency of 50Hz power distribution lines and distribution transformers, as well as overload and short circuit protection division and rated load current purposes.
 
2. Type meaning
P R W - 12F / 200
P: jet
R: fuse
W: Outdoors
0 : Reference Design
12: Rated voltage
F: with a load
200: Rated current
 
3. Structure Introduction
        Fuse from the base, the arc extinguishing devices and interrupters three major components. When the fuse in the closing position, dynamic and static contact by a compression spring-loaded to ensure that there is sufficient contact between the pressure arc tube lower end with a rotatable torsion spring, after the melt is loaded, the torsion spring namely tightening, so that the fuse in tension, in order to ensure arc tube self-locking in the closing position.
        When the circuit overload or short circuit when the melt blown fuse by means of a torsion spring, quickly pulled from the melting tube, and because a large amount of heat energy of the arc extinguishing gas into the melting tube, the arc extinguished quickly, in order to reduce arcing time and loss of extinguishing material. After arc extinction, melting tube under its own weight and the bridge-contact compression springs and the automatic drop to achieve visible fracture.
 
4. The main technical parameters

Rated voltage KV	Rated current A	Rated breaking capacity MVA		Points, co-load current times	Weight kg Weight Silicone rubber can reduce 2kg
		Upper limit	Lower limit
12	200	200	40	>= 15	7.8

 
5. Please specify when ordering
     Product name and model specifications, the fuse rated current, the number of orders, the need for spare parts or accessories.

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