Cable de caucho H03RN-F, H05RN-F, H07RN-F, and H03RT-H are types of rubber cables that are used in different applications. The letters and numbers in the names refer to the specific characteristics and ratings of the cables.

H03RN-F: This type of cable is intended for use in portable appliances, tools and equipment where the cable is flexible and exposed to normal mechanical stresses. It is also suitable for use in light-duty equipment and power supply units for portable tools.

H05RN-F: This type of cable is intended for use in portable appliances, tools and equipment where the cable is flexible and exposed to normal mechanical stresses. It has a higher current rating than the H03RN-F, making it suitable for use in heavy-duty equipment and power supply units for portable tools.

H07RN-F: This type of cable is intended for use in portable appliances, tools and equipment where the cable is flexible and exposed to normal mechanical stresses. It has an even higher current rating than the H05RN-F, making it suitable for use in very heavy-duty equipment and power supply units for portable tools.

H03RT-H: This type of cable is a rubber insulated, textile braided and rubber sheathed flexible cable intended for use in the supply of portable electrical equipment where the cable is exposed to oil and grease.

All of these cables are made of rubber, which provides them with flexibility, durability and resistance to abrasion, oils and chemicals. They are also resistant to weathering and aging, which makes them suitable for use in outdoor and harsh environments.