RW3、 4. The 7-10 type outdoor drop out fuse is suitable for short-circuit protection of transmission lines and power transformers in power systems with a rated voltage of 10 kV at AC 50 Hz.

structural characteristics
1. Basic usage conditions of the product;
a. Altitude not exceeding 1000 meters;
b. The ambient temperature should not be higher than+40 ℃, generally not lower than -30 ℃ in general areas, and not lower than -40 ℃ in high-altitude areas.
2. The product is not suitable for the following locations:
a. Places with combustion or explosion hazards;
b. Places with severe vibrations or impacts;
c. Areas with conductivity, chemical gas interactions, and severe salt spray pollution.

Main technical parameters of RW4 and RW7-10 series drop out fuses

Product Model	Rated voltage (KV)	Rated current (A)	Three phase interruption capacity (megavolt ampere)		Power frequency dry test voltage (KV)	Power frequency wet test voltage (KV)	Full wave impulse voltage (KV)	Allowable temperature rise for conductive parts such as fuses (℃)	Single phase weight (Kg)
			(Upper limit)	(Lower limit)
RW3-10/50	ten	fifty	fifty	fifty	forty-five	thirty-four	seventy	sixty	six point three
RW3-10/100	ten	one hundred	one hundred	ten	forty-five	thirty-four	seventy	sixty	six point four
RW3-10/200	ten	two hundred	two hundred	twenty	forty-five	thirty-four	seventy	sixty	seven point two
RW4-10/100	ten	one hundred	one hundred	ten	forty-five	thirty-four	seventy	sixty	six point four
RW7-10/100	ten	one hundred	one hundred	ten	forty-five	thirty-four	seventy	sixty	seven point three