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(H) RW12 Series Drop Out Fuse

General
The (H)RW12 series outdoor high voltage drop out fuse is an outdoor high voltage protection electrical device. It is installed on the high voltage side of distribution transformers or on branch lines of distribution circuits, used for short circuit and overload protection of transformers and lines, as well as for breaking and closing load currents. The fuse consists of two main parts: an insulating support and a fuse tube. The static contacts are mounted at both ends of the insulating support, while the moving contacts are installed at both ends of the fuse tube. The fuse tube is composed of an inner arc-extinguishing tube and an outer epoxy fiberglass tube.

product details

Type and its meaning

Service conditions

a. Altitude: Not more than 2000m.

b. Ambient temperature: Max: +40°C, Min: -30°C.

c. The location should be free from explosion hazards, severe vibrations, and conditions that cause significant corrosion to metals or insulating materials.

Technical parameter

Type	Rated voltage kV	Rated current A	Breaking current A	Impulse voltage BIL	Power frequency withstand voltage kV	Creepage distance Um	Weight KG	Dimension cm
(H)RW12-12	12	100	1000	110	42	31.5	7.3	38.5 x 34.5 x 11
(H)RW12-12	12	200	1200	110	42	31.5	7.3	38.5 x 34.5 x 11
(H)RW12-15	15	100	1000	110	42	31.5	7.3	38.5 x 34.5 x 11
(H)RW12-15	15	200	1200	110	42	31.5	7.3	38.5 x 34.5 x 11

Rated voltage (kV)	BIL (kV)	A (mm)	B (mm)	C (mm)	D (mm)	E (mm)	F^R (mm)	Creepage distance (mm)	Weight KG
12(15)	125	331.4	169.3	202.4	462.8	129.4	412.8	325.1	6.58
24(27)	125	341.4	179.3	202.4	462.8	134.9	412.8	325.1	6.58
24(27)	150	341.4	179.3	202.4	462.8	134.9	412.8	457.2	9.08
27(33)	200	435.1	187.5	261.1	548.4	165.1	522.2	665.5	10.1
27(36)	200	435.1	187.5	261.1	548.4	165.4	522.2	769.6	10.1

Outline structure and installation dimensions

1. Upper Terminal Block (Available in two types: tin-plated copper castings and silver-plated stamped parts).

2. Upper Cover (Made of high-quality 304 stainless steel with integrated terminal blocks).

3. Upper Contact Plate (Zinc-plated integrated terminal block) to enhance conductivity.

4. Upper Moving Contact (Surface plated with 3um silver, equipped with a 304 stainless steel spring capable of withstanding high pressure).

5. Tripping Hook (Specially designed hook to effectively guide the fuse tube into the closed position).

6. Fuse Tube (UV-resistant, moisture-proof, and long-lasting).

7. Trunnion (Surface plated with 3um silver, ensuring high precision and preventing lateral movement during closing).

8. Lower Moving Contact (Invisible) (Equipped with a 3um silver-plated shunt plate, providing a current path independent of the hinge pin).

9. res rapid separation at the ends and quick ejection of the cable strand).

10. High-Strength Insulator (Features self-cleaning properties, high strength, and excellent craftsmanship).

11. Base Terminal (Zinc-plated integrated lower terminal block).

Note: All iron accessories are hot-dip galvanized with a thickness of over 80um. Stainless steel components are made of high-quality 304 stainless steel. Precision-cast brass or aluminum bronze (two material options)