Electric Fuse

Product Details

RT14 Series cylinder cap fuse

RT14 type cylindrical cape fuse(Electric Fuse), used in rated voltage AC 400V, rated current up to 63A of distribution device,  serves as protection of overload & short circuit. Fuse body with electric shock is fited in, and with fuse type indicator serves as phase fault-protection of motors.

This series of fuse consists of fuse link and fuse base. The variable cross-section fuse body made by pure copper piece (or copper wire, silver wire, silver piece) is sealed in the fusion tube which is made by the high strength porcelain or epoxy glass cloth pipe There is full of the high-purity quartz sand processed after chemistry to take the extinguishing of arc medium in the tube. The two sides of the fuse use the spot welding to reliably connect with the end plate and to form the cylindrical cap shape structure. Fuse base suppressed by the resin or plastic casing fitted with contacts and contains the fusion pieces, the connection made by riveting as the support of the appropriate size fuse body parts. This series of fuse has many merits such as small in size, convenient for installation, safe in usage, beautiful in appearance and so on.

Scope of application

It is applicable distributing equipment in industrial electrical installation of AC 50Hz ( or 60Hz ) rated

voltage 400V, rated current 63A and below. Against damage due to overload or short circuit.

Type and meaning of Electric Fuse:

RT: Powder-filled cartridge fuse

14: Design order number

 Main technical parameter of Electric Fuse

Type: RT14-20

Rated current (A):

--Fuse-link: 2,4,6,8,10,12,16,20

--Holder: 20

Rated voltage: 400V

Rated breaking capacity (kA): 100

Rated power dissipation of fuse-link: ≤3

Weight of base (g): 40

Weight of fuse-link (g):8

Cylinder cap Fuse time - current zone

Outline and installation size of Electric Fuse:

1. The outline size of the fuse-link:

Type: RT14-20

 Size: 10x38

 L: 38±0.6

 C: 10.3± 0.1

Hmax: 10.5

2. The outline installation size of the holder of the fuse:

RT14-20	RT14-32/63

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