Explosion-proof limit switches are used in explosive hazardous environments such as chemical industry, oil refining, oil extraction, natural gas, medicine, textiles, printing and dyeing, military equipment, etc.

Features

• Explosion-proof limit switch adopts high-quality aluminum alloy die-cast housing, and the surface is treated with high-voltage electrostatic spraying, which has excellent hardness and explosion-proof performance.
• It is equipped with a high-temperature resistant and anti-oxidation silicone rubber waterproof seal to ensure good waterproof and dustproof capabilities.
• The safety limit switch is designed to meet the IIB level explosion-proof standard and is suitable for hazardous environments with explosive gases.
• The aluminum alloy material provides excellent corrosion resistance and mechanical strength, and can operate stably for a long time in extreme environments.

Specification

Dimensions (mm)

Applications

Tips: The difference between explosion-proof limit switches and other limit switches

The primary distinction between explosion-proof limit switches and other limit switches lies in their specialized design for hazardous environments. Explosion-proof limit switches comply with stringent explosion-proof standards (such as IIB level) and are designed to prevent ignition in explosive gas or dust environments. They typically feature an aluminum alloy die-cast housing, treated with high-pressure electrostatic powder coating for enhanced durability, and are equipped with specialized silicone rubber seals to ensure reliable performance in hazardous conditions. These switches are ideal for use in applications such as petrochemical industries, mining, and other environments requiring high safety standards.

In contrast, other limit switches are designed for standard industrial environments and do not have explosion-proof capabilities. They usually use standard plastic or metal housings and lack the explosion-proof features necessary for explosive atmospheres. These switches are suited for applications in manufacturing, warehousing, and logistics where hazardous conditions are not a concern. They come with lower design and certification requirements, making them more cost-effective but unsuitable for environments with explosive gases or dust. Therefore, selecting the appropriate limit switch depends on the specific application environment and safety requirements.