Explosion proof electrical appliances with heating function often require heating equipment and electrical heating equipment in the production process of petrochemical enterprises, so the explosion-proof problem of these products is also very important. The main products include explosion-proof electric heaters and explosion-proof heaters. Due to the fact that products such as explosion-proof control transformers and ballasts, although their main function is not to obtain thermal energy, can also generate heat during operation and should be given great attention, they are all included in this category of products. Of course, in today's rapidly developing technology, there will also be many electric heating devices made of high-tech materials, but their explosion-proof problems cannot be ignored. The main components of explosion-proof heating equipment are windings, controllers, and junction boxes, and often have protective functions for temperature control or monitoring. This type of product is basically explosion-proof, with an explosion-proof grade of IIBT4. In certain production situations, explosion-proof alarm appliances often require some lights and sounds to remind people to take action. In environments containing explosive hazardous gases, such appliances become even more important.

Its main products include explosion-proof indicator lights, explosion-proof seals, explosion-proof electric horns, explosion-proof buzzers, and other products. The structure is usually explosion-proof and made of cast aluminum alloy, with an explosion-proof level of up to IICT6. Its working voltage can be divided into direct 36-220V and AC up to 380V. The explosion-proof junction box and explosion-proof housing are its main structural components. The 11 explosion-proof electromagnets mainly include explosion-proof electromagnets, explosion-proof solenoid valves, explosion-proof electromagnetic drives, and other products. Its working principle is to drive mechanical equipment to work through the electromagnetic force generated under the action of an electromagnetic field, which is generally used for braking. The majority of the structure is explosion-proof, made of cast steel or cast iron, with an explosion-proof grade of II BT6. Its main technical parameters are generally thrust or suction (calculated in kg) and power on duration. It is not allowed to be powered on for a long time, otherwise it may overheat and cause danger.

Other types of explosion-proof electrical products often encounter many special requirements in complex production processes, which require the manufacture of special explosion-proof electrical products. Due to the small production volume and special requirements of this type of product, it belongs to the non-standard category, so it is classified as explosion-proof other categories. There are mainly electrical instruments, temperature transmitters, pressure transmitters, speed transmitters, liquid level gauges, quantitative control instruments, ignition devices, cameras and other products. These products are basically manufactured for production needs. Although their performance requirements vary, most products are made of metal shells with explosion-proof or increased safety structures. There are also a few products that are intrinsically safe, and their working voltage and current are generally low, with an explosion-proof level of IICT6. By roughly dividing explosion-proof electrical products used in factories into twelve categories, in order to obtain a clear and rational understanding of these products, there may be omissions or incompleteness in the above classification.