Core Purpose Statement
This guide covers explosion-proof plugs, sockets, and connectors from Baoji Youtai, specifically designed for hazardous environments such as oil refineries, chemical plants, coal mines, and offshore drilling platforms. Compatible with equipment like explosion-proof motors (YB3 series), industrial control cabinets (BXK series), and hazardous area lighting systems, it caters to the core needs of petrochemical enterprises, mining companies, and industrial engineering contractors for safe, reliable electrical connections. These products eliminate risks of electrical sparks igniting flammable gases/dust, ensuring compliance with explosion-proof safety standards and stable operation of critical equipment in hazardous zones.
Product Classification & Detailed Specifications
1. 15A Explosion-Proof Plugs, Sockets & Connectors
Ideal for low-power explosion-proof electrical equipment in Zone 1/2 hazardous areas, these 15A products resolve risks of poor contact-induced overheating and sparking. They ensure stable power supply for small-scale instrumentation and lighting systems, with robust explosion-proof performance to adapt to flammable gas environments. Critical for maintaining continuous operation of low-power devices in hazardous zones.
Product No. | Product Model | Voltage Rating | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 15YT-3J/GZ、YZ-3K | 250V | Aluminum alloy (shell) + copper alloy (contacts) + nitrile rubber (sealing ring) | 1. Abrasion of contact surfaces due to frequent plugging/unplugging under load; 2. Deterioration of sealing ring caused by long-term exposure to corrosive gas (e.g., hydrogen sulfide) | 1. Avoid plugging/unplugging when the equipment is powered on; use a load-breaking switch to cut off power first; 2. Regularly inspect the sealing ring for cracks and replace it with original parts every 6 months in corrosive environments |
2 | 15YT-30J/GZ、YZ-30K | 400V/500V | Aluminum alloy (shell, anti-corrosion treated) + silver-plated copper (contacts) + fluororubber (sealing ring) | 1. Oxidation of contact surfaces due to poor ventilation and high humidity in enclosed hazardous areas; 2. Loosening of shell fasteners caused by vibration of associated equipment | 1. Ensure the installation area is well-ventilated; clean contact surfaces with alcohol monthly and apply anti-oxidation paste; 2. Use lock washers for fasteners and retighten them quarterly to the specified torque |
2. 16A Explosion-Proof Plugs, Sockets & Connectors
Designed for medium-low power industrial equipment in hazardous zones, these 16A products address issues of voltage drop and contact overheating. Suitable for explosion-proof fans, small pumps, and control sensors, they feature precise contact positioning and strong anti-interference performance. Essential for reliable power transmission in Zone 1/21 hazardous environments with flammable gas or combustible dust.
Product No. | Product Model | Voltage Rating | Cable Diameter | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 16YT-20J/GZ、YZ-20K | 400V | φ19、φ22、φ26、φ29 | Cast aluminum alloy (shell) + beryllium copper (contacts) + silicone rubber (sealing ring) | 1. Wear of contact springs due to frequent plugging/unplugging, leading to reduced contact pressure; 2. Damage to cable entry seals caused by improper cable bending radius | 1. Limit plugging/unplugging times to within the product's rated life (≥5000 times); replace contacts if contact resistance exceeds 50mΩ; 2. Ensure cable bending radius is ≥8 times the cable diameter; avoid sharp bends at the cable entry |
2 | 16YT-14J/GZ、YZ-14K | 400V | φ13、φ16.5、φ18 | Cast aluminum alloy (shell) + silver-plated copper (contacts) + nitrile rubber (sealing ring) | 1. Ingress of dust and moisture through worn cable entry seals, causing internal insulation degradation; 2. Abrasion of shell surface anti-corrosion coating due to frequent collision during equipment movement | 1. Inspect cable entry seals for tightness monthly; re-tighten the compression nut if loose; 2. Install protective sleeves around the shell in high-collision areas; touch up anti-corrosion coating annually |
3 | 16YT-10J/GZ、YZ-10K | 250V | φ10、φ13、φ15.5 | Aluminum alloy (shell) + copper alloy (contacts) + EPDM rubber (sealing ring) | 1. Thermal aging of internal insulation materials due to long-term operation at high ambient temperatures (exceeding 60℃); 2. Corrosion of contacts by sulfur-containing gases in chemical plant environments | 1. Ensure ambient temperature does not exceed the product's rated operating temperature (-20℃ to 60℃); install heat shields if near high-temperature equipment; 2. Use in sulfur-containing environments requires quarterly contact inspection; replace contacts if corrosion is detected |
4 | 16YT-6J/GZ、YZ-6K | 250V | - | Aluminum alloy (shell) + copper alloy (contacts) + nitrile rubber (sealing ring) | 1. Damage to contact surfaces caused by plugging/unplugging with foreign objects (e.g., dust, debris) on the contacts; 2. Fatigue failure of internal switching mechanisms due to frequent on/off operations | 1. Clean contacts with a dry cloth before plugging/unplugging; avoid using in dusty environments without protection; 2. Reduce unnecessary on/off operations; inspect the switching mechanism for flexibility semi-annually |
5 | 16YT-4J/GZ、YZ-4K | 400V/500V | - | Aluminum alloy (shell, powder-coated) + silver-plated copper (contacts) + fluororubber (sealing ring) | 1. Peeling of powder coating on the shell due to chemical solvent splashing; 2. Loosening of contact terminals caused by thermal expansion and contraction in variable temperature environments | 1. Avoid installing near areas with chemical solvent splashing; clean splashed solvents immediately with neutral detergent; 2. Retighten contact terminals seasonally to compensate for thermal expansion and contraction effects |
6 | 16YT-9J/GZ、YZ-9K | 400V/500V | - | Cast aluminum alloy (shell) + beryllium copper (contacts) + silicone rubber (sealing ring) | 1. Degradation of silicone rubber sealing rings due to ozone exposure in outdoor hazardous areas; 2. Abrasion of guide pins during plugging/unplugging, leading to misalignment | 1. For outdoor use, select ozone-resistant silicone rubber seals; replace seals every 8 months; 2. Align the guide pins correctly before plugging; avoid forced insertion if resistance is encountered |
3. 25A Explosion-Proof Plugs, Sockets & Connectors
Tailored for medium-power industrial equipment in hazardous zones, these 25A products solve problems of contact melting and circuit tripping due to overload. Suitable for explosion-proof pumps, compressors, and heating equipment, they feature high-current carrying capacity and excellent heat dissipation. Critical for stable operation of medium-power equipment in Zone 1/2 hazardous areas with flammable gases.
Product No. | Product Model | Voltage Rating | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 25YT-3J/GZ、YZ-3K | 250V | Cast aluminum alloy (shell) + copper alloy (contacts) + nitrile rubber (sealing ring) | 1. Overheating and ablation of contacts due to operation beyond rated current; 2. Deterioration of insulation materials caused by poor heat dissipation in enclosed installations | 1. Strictly match the product with the equipment's rated current; install a thermal protector in the circuit; 2. Avoid enclosed installation; ensure at least 10cm of heat dissipation space around the product |
2 | 25YT/GZ、YZ | 400V/500V | Aluminum alloy (shell, anti-corrosion treated) + silver-plated copper (contacts) + fluororubber (sealing ring) | 1. Corrosion of shell and contacts by salt spray in offshore hazardous environments; 2. Vibration-induced loosening of internal wiring terminals | 1. For offshore use, select salt-spray resistant products; clean the shell with fresh water monthly and apply anti-corrosion oil; 2. Use vibration-resistant terminal blocks; inspect and retighten wiring terminals quarterly |
3 | 25YT-5J/GZ、YZ-5J | 400V/500V | Cast aluminum alloy (shell) + beryllium copper (contacts) + silicone rubber (sealing ring) | 1. Wear of contact surfaces due to frequent plugging/unplugging in mobile equipment applications; 2. Damage to sealing rings caused by oil contamination in industrial oil refining environments | 1. For mobile equipment, use products with reinforced contacts; limit daily plugging/unplugging to ≤5 times; 2. Clean oil-contaminated sealing rings immediately with oil-resistant detergent; replace rings if oil swelling occurs |
4 | 25YT-20J/GZ、YZ-20K | 400V/500V | Aluminum alloy (shell) + silver-plated copper (contacts) + nitrile rubber (sealing ring) | 1. Oxidation of contact surfaces due to high humidity in underground mining environments; 2. Abrasion of shell threads during repeated installation and disassembly | 1. In underground mining applications, use moisture-proof packaging during storage; inspect contacts for oxidation monthly; 2. Apply thread lubricant during installation; avoid over-tightening to prevent thread damage |
5 | 25YT-26J/GZ、YZ-26K | 400V/500V | Cast aluminum alloy (shell) + copper alloy (contacts) + fluororubber (sealing ring) | 1. Thermal aging of internal components due to long-term operation at high temperatures (exceeding 70℃); 2. Ingress of dust into the contact area, causing poor contact and arcing | 1. Monitor ambient temperature regularly; install heat sinks if necessary; 2. Use dust caps when the product is not in use; clean the contact area with compressed air before plugging |
4. 60A Explosion-Proof Plugs, Sockets & Connectors
Engineered for high-power industrial equipment in hazardous zones, these 60A products address issues of excessive heat generation and contact failure under high current. Suitable for explosion-proof motors, large compressors, and power distribution cabinets, they feature enhanced heat dissipation structures and high-strength contacts. Essential for reliable power transmission in Zone 1 hazardous areas with high-power equipment.
Product No. | Product Model | Voltage Rating | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 60YT-3J/GZ、YZ-3K | 250V | Cast aluminum alloy (shell) + copper alloy (contacts, with heat dissipation fins) + nitrile rubber (sealing ring) | 1. Overheating and deformation of contacts due to poor contact caused by dust accumulation; 2. Deterioration of sealing rings due to long-term exposure to chemical vapors | 1. Clean the contact surface and heat dissipation fins weekly with compressed air; check contact resistance regularly (≤30mΩ); 2. Replace sealing rings every 6 months; use chemical-resistant seals in chemical vapor environments |
2 | 60YT/GZ、YZ | 400V/500V | Aluminum alloy (shell, powder-coated) + silver-plated copper (contacts) + fluororubber (sealing ring) | 1. Peeling of powder coating due to mechanical impact; 2. Loosening of shell fasteners caused by vibration of high-power equipment | 1. Install protective guards around the product to prevent impact; touch up damaged coating immediately; 2. Use high-strength fasteners with lock nuts; retighten quarterly according to the torque specification |
3 | 60YT-5J/GZ、YZ-5J | 400V/500V | Cast aluminum alloy (shell) + beryllium copper (contacts) + silicone rubber (sealing ring) | 1. Fatigue failure of contact springs due to long-term high-current operation; 2. Ingress of moisture leading to internal insulation breakdown in high-humidity environments | 1. Inspect contact spring elasticity semi-annually; replace contacts if spring force decreases by more than 20%; 2. Use moisture-proof cable glands; inspect the internal insulation resistance quarterly (≥100MΩ at 500V DC) |
5. 100A Explosion-Proof Plugs, Sockets & Connectors
Designed for heavy-duty high-power equipment in hazardous zones, these 100A products resolve risks of contact ablation and circuit failure under extreme current loads. Suitable for large explosion-proof motors, power generators, and main distribution systems, they feature low-resistance contacts and efficient heat dissipation. Critical for safe and stable operation of core power equipment in Zone 1/0 hazardous areas.
Product No. | Product Model | Voltage Rating | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 100YT/GZ、YZ | 400V/500V | Cast aluminum alloy (shell) + copper alloy (contacts, tinned) + nitrile rubber (sealing ring) | 1. Overheating of contacts due to inadequate cable crimping; 2. Corrosion of shell and contacts by corrosive gases in chemical processing plants | 1. Use professional crimping tools for cable connection; ensure crimping torque meets specifications; 2. Select corrosion-resistant materials for chemical environments; inspect for corrosion monthly and clean with anti-corrosion agent |
2 | 00YT-5J/GZ、YZ-5J | 400V/500V | Aluminum alloy (shell, anti-corrosion treated) + silver-plated copper (contacts) + fluororubber (sealing ring) | 1. Vibration-induced loosening of internal busbars, leading to poor contact; 2. Thermal aging of insulation materials due to long-term high-temperature operation | 1. Secure busbars with vibration-resistant clamps; inspect and retighten connections quarterly; 2. Monitor operating temperature; ensure it does not exceed 80℃; install temperature sensors for real-time monitoring if necessary |
6. 150A Explosion-Proof Plugs, Sockets & Connectors
Tailored for ultra-high-power industrial equipment in hazardous zones, these 150A products address issues of severe heat generation and contact deformation under heavy current. Suitable for large-scale power generation equipment, main transformers, and industrial furnaces in hazardous areas, they feature robust structural design and high-temperature resistant materials. Essential for reliable power supply to core heavy-duty equipment.
Product No. | Product Model | Voltage Rating | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 150YT/GZ、YZ | 400V/500V | Cast aluminum alloy (shell) + copper alloy (contacts, with heat dissipation channels) + fluororubber (sealing ring) | 1. Abrasion of contact surfaces due to thermal expansion and contraction in variable temperature environments; 2. Ingress of dust and debris causing contact arcing | 1. Inspect contact surfaces for wear annually; grind or replace contacts if wear depth exceeds 0.5mm; 2. Use dust-proof covers when not in use; clean the contact area with compressed air before each use |
2 | 50YT-5J/GZ、YZ-5J | 400V/500V | Aluminum alloy (shell) + silver-plated copper (contacts) + silicone rubber (sealing ring) | 1. Deterioration of silicone rubber seals due to ozone exposure in outdoor hazardous areas; 2. Loosening of cable glands caused by frequent cable movement | 1. For outdoor use, replace seals with ozone-resistant types every 6 months; 2. Use cable clamps to fix the cable near the gland; avoid excessive cable movement |
7. 200A Explosion-Proof Plugs, Sockets & Connectors
Engineered for extreme high-power applications in hazardous zones, these 200A products solve problems of contact melting and structural deformation under ultra-high current. Suitable for large industrial boilers, heavy-duty crushers, and main power distribution systems in Zone 1 hazardous areas, they feature reinforced contacts and advanced heat dissipation technology. Critical for ensuring uninterrupted power supply to key heavy-industry equipment.
Product No. | Product Model | Voltage Rating | Cable Diameter | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 200YT/GZ、YZ | 400V/500V | - | Cast aluminum alloy (shell) + copper alloy (contacts) + nitrile rubber (sealing ring) | 1. Overheating of contacts due to operation beyond rated current; 2. Corrosion of internal components by salt spray in offshore oil and gas platforms | 1. Install overcurrent protection devices in the circuit; strictly prohibit overloading; 2. For offshore applications, use salt-spray resistant products; conduct corrosion inspection monthly and apply anti-corrosion grease |
2 | 200YT-5J/GZ、YZ-5J | 400V/500V | - | Aluminum alloy (shell, anti-corrosion treated) + silver-plated copper (contacts) + fluororubber (sealing ring) | 1. Fatigue failure of contact springs due to long-term high-current operation; 2. Damage to insulation materials caused by high ambient temperatures | 1. Inspect contact spring performance semi-annually; replace contacts if necessary; 2. Ensure the installation area is well-ventilated; avoid proximity to high-temperature equipment |
3 | 200YT-1J/GZ、YZ-1K | 750V | φ10、φ13、φ15.5 | Cast aluminum alloy (shell) + beryllium copper (contacts) + silicone rubber (sealing ring) | 1. Insulation breakdown due to moisture ingress in high-humidity environments; 2. Abrasion of guide pins during plugging/unplugging, leading to misalignment | 1. Inspect insulation resistance quarterly (≥200MΩ at 1000V DC); use moisture-proof cable glands; 2. Align guide pins correctly before plugging; do not force insertion |
8. 300A-1000A Explosion-Proof Plugs, Sockets & Connectors
Designed for super high-power industrial systems in hazardous zones, these 300A-1000A products address extreme heat generation and structural failure risks. Suitable for large power plants, industrial smelting equipment, and main power grids in hazardous areas, they feature heavy-duty construction, low-resistance contacts, and efficient heat dissipation. Essential for reliable power transmission in critical super high-power applications.
Product No. | Product Model | Voltage Rating | Cable Diameter | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 300YT/GZ、YZ | 400V/500V | - | Cast aluminum alloy (shell) + copper alloy (contacts, with heat dissipation fins) + fluororubber (sealing ring) | 1. Overheating and deformation of shell due to poor heat dissipation; 2. Loosening of busbar connections caused by vibration | 1. Install the product in a well-ventilated area; avoid stacking with other equipment; 2. Use high-strength busbar clamps; inspect and retighten connections quarterly with torque wrench |
2 | 400YT-1J/GZ、YZ-1K | 750V | φ19、φ22、φ24、φ26 | Aluminum alloy (shell) + silver-plated copper (contacts) + silicone rubber (sealing ring) | 1. Thermal aging of silicone rubber seals due to high operating temperatures; 2. Corrosion of contacts by sulfur-containing gases in coal-fired power plants | 1. Replace seals every 6 months; use high-temperature resistant seals (≥120℃); 2. Inspect contacts for corrosion monthly; clean with anti-corrosion agent and apply protective grease |
3 | 600YT-1J/GZ、YZ-1K | 750V | φ22、φ26、φ29、φ32 | Cast aluminum alloy (shell, reinforced) + copper alloy (contacts) + fluororubber (sealing ring) | 1. Fatigue failure of contact surfaces due to long-term high-current operation; 2. Ingress of dust and debris causing short circuits in dusty industrial environments | 1. Inspect contact surfaces annually for wear; replace contacts if necessary; 2. Use dust-proof and waterproof covers; clean the product with compressed air monthly |
4 | 800/1000YT-1J/GZ、YZ-1K | - | - | Cast aluminum alloy (shell, heavy-duty) + copper alloy (contacts, tinned) + nitrile rubber (sealing ring) | 1. Structural deformation of shell due to mechanical impact; 2. Overheating of contacts due to inadequate cable connection | 1. Install protective barriers around the product to prevent impact; 2. Use professional crimping tools for cable connection; ensure full contact between cable and contacts |
Procurement & Technical Reference Standards
1. Procurement Reference Standards
• Explosion-Proof Certification: Prioritize products certified to ATEX, IECEx, or GB 3836 standards, ensuring compliance with the hazardous zone classification (e.g., Zone 1, Zone 21) of the installation site.
• Electrical Parameter Matching: Confirm that the product's rated current, voltage, and cable diameter range match the equipment's electrical requirements and cable specifications.
• Environmental Adaptability: Select materials and sealing rings based on the operating environment (e.g., salt spray for offshore, corrosion-resistant for chemical plants, high-temperature resistant for smelting areas).
• Quality & Reliability: Choose products with stable contact resistance (≤50mΩ for low current, ≤30mΩ for high current) and a minimum plugging/unplugging life of 5000 times; verify manufacturer quality assurance systems.
2. Technical Problem-Solving Reference Standards
• Contact Overheating: Check for overload, poor contact, or dust accumulation; reduce load to rated value, clean contacts, and retighten connections; replace contacts if ablation is severe.
• Insulation Failure: Test insulation resistance with a megohmmeter; if below the standard (≥100MΩ for 500V, ≥200MΩ for 750V), dry the product or replace insulation components; check for moisture ingress points.
• Sealing Failure: Inspect sealing rings for cracks, swelling, or aging; replace with original parts of the correct material; re-tighten cable glands and shell fasteners to ensure tightness.
• Vibration-Induced Loosening: Use lock washers, lock nuts, or vibration-resistant clamps; increase inspection frequency of fasteners and connections in high-vibration environments; apply thread locking adhesive if necessary.
Procurement Invitation
Baoji Youtai explosion-proof plugs, sockets, and connectors are engineered to meet the rigorous safety requirements of hazardous environments, with reliable explosion-proof performance, excellent electrical conductivity, and long service life. Whether you need products for new project installations, equipment maintenance, or safety upgrades, we can provide tailored solutions to match your specific hazardous zone classification, equipment parameters, and operating environment. Contact our sales team today to obtain detailed product specifications, technical data sheets, and competitive pricing information, and let our professional team support your safe and efficient operations.
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