CZ CZ0254 Explosion-proof Plug and Socket Device, GRP, 125A 690V, Ex db eb IIC T5 Gb T95℃ Db, IP65, IECEx ATEX Approved

CZ0254 Explosion-proof Plug and Socket Device, GRP, 125A 690V

The Chuangzheng CZ0254 series is an internationally certified explosion-proof plug and socket device, meticulously engineered for robust and reliable electrical power connections in the most demanding hazardous industrial environments. Constructed from high-strength Glass Reinforced Plastic (GRP), this device offers superior chemical and corrosion resistance, high impact capabilities, and inherent static resistance, making it an ideal lightweight alternative to metal enclosures. With comprehensive explosion protection ratings including Ex db eb IIC T5 Gb and Ex tb IIIC T95℃ Db, verified by IECEx and ATEX certifications, the CZ0254 ensures exceptional safety and performance in both gas and dust explosive atmospheres. Designed for applications up to 690V AC and currents up to 125A, it incorporates advanced features such as self-cleaning contacts and a high IP65 degree of protection, guaranteeing operational continuity and safety.

Key Features:

• Dual-Certified Explosion Protection: Holds comprehensive IECEx and ATEX certifications with markings Ex db eb IIC T5 Gb and Ex tb IIIC T95℃ Db. This ensures suitability for Zone 1 & 2 (gases) and Zone 21 & 22 (dusts) hazardous areas, covering all gas groups (IIA, IIB, IIC) and dust groups (IIIA, IIIB, IIIC) with high temperature classifications.
• Robust GRP Enclosure: Manufactured from a special alloy plastic with static resistance properties (Glass Reinforced Plastic), providing outstanding resistance to corrosion, harsh chemicals, mechanical impact, and UV radiation, while being significantly lighter than metallic alternatives.
• High IP65 Environmental Protection: Guarantees complete protection against dust ingress and resistance to multi-directional low-pressure water jets, making it suitable for severe outdoor and industrial conditions.
• High Electrical Ratings: Designed to operate efficiently at a maximum rated voltage of 690V AC and a rated current of 125A (at ambient temperatures up to +45℃, derating to 115A at +55℃).
• Advanced Contact Technology: Features self-cleaning inserting sleeves which ensure consistently low transmission resistance and reliable contact over time.
• Low Insertion and Pulling Force: Engineered for user convenience, allowing for easy and ergonomic connection and disconnection even in challenging work environments.
• Integrated Protective Covers: Ensures a high degree of protection for the socket when the plug is disconnected, preventing ingress of foreign objects or moisture.
• Wide Ambient Temperature Range: Certified for operation in extreme temperatures from -40℃ to +55℃, demonstrating its reliability in diverse climatic conditions.
• Auxiliary Switch Functionality: Includes an auxiliary control switch (AC250V/5A) for interlocking, signaling, or control circuit integration, enhancing system safety and automation.

Detailed Technical Specifications:

Electrical Characteristics:

• Manufacturer: Chuangzheng Explosion-proof Electric Co., Ltd.
• Series: CZ0254
• Product Type: Explosion-proof Plug and Socket Device (includes both plug and wall-type socket components)
• Rated Voltage: Max 690V AC, 50/60Hz
• Rated Current:
  • 125A (for ambient temperatures -40℃ ≤ Ta ≤ +45℃)
  • 115A (for ambient temperatures -40℃ ≤ Ta ≤ +55℃)
• Rated Switch Capacity (AC-3): 690V / 125A (Indicates ability to switch motor loads)
• Auxiliary Switch: AC250V / 5A

Explosion Protection & Environmental:

• Explosion Protection Marks:
  • China: Ex d eⅡC T5 Gb Ex tD A21 IP66 T95℃
  • IECEx: Ex db ebⅡC T5 Gb Ex tb ⅢC T95℃ Db
  • ATEX: Ⅱ2GD Ex db ebⅡC T5 Gb Ex tb ⅢC T95℃ Db
• Applicable Hazardous Zones:
  • Zone 1 (Gases)
  • Zone 2 (Gases)
  • Zone 21 (Dusts)
  • Zone 22 (Dusts)
• Gas Group Compatibility: IIA, IIB, IIC
• Dust Group Compatibility: IIIA, IIIB, IIIC
• Temperature Class (Gas): T5 (Max Surface Temperature < 100℃)
• Maximum Surface Temperature (Dust): T95℃
• Ingress Protection (IP) Rating: IP65
• Ambient Temperature Range: -40℃ ≤ Ta ≤ +55℃

Mechanical Specifications:

• Housing Material: Alloy plastic of static resistance / GRP (Glass Reinforced Plastic)
• Terminals:
  • Wall-type socket: 2 × 50mm² (main terminals) + 2 × 2.5/4mm² (aux. contact terminals)
  • Plug: 1 × 50mm²
• Cable Entry:
  • Wall-type socket (standard configuration): 1 × Moulded plastic M63 × 1.5 (for cable outside diameter Φ27 ~ 48mm), includes 1 × Moulded plastic M63 × 1.5 stopping plug. Other certified cable glands can be used.
  • Plug: Suitable for 4 poles or 5 poles. Cable outside diameter Φ20 ~ 57mm.
• Pole Configurations: Available in 4-pole and 5-pole versions (inferred from plug cable entry specifications).
• Mounting Type: Wall-mounted (socket), Cable-mounted (plug)

Standards & Compliance:

• Certifications:
  • China: CCC (CNEx16.0835)
  • IECEx: IECEx CQM 10.0002X
  • ATEX: (DNV) Presafe 16 ATEX 8607X
• Applicable Standards: Conforms to relevant portions of IEC 60079 series and EN 60079 series for explosion protection.

Applications:

The Chuangzheng CZ0254 Explosion-proof Plug and Socket Device is an indispensable component for secure power distribution and equipment connection across a broad spectrum of hazardous industrial applications, including:

• Chemical and Petrochemical Industries: Providing safe power connections for pumps, motors, lighting, and portable equipment in processing plants and storage areas with flammable gases and vapors.
• Oil and Gas Exploration & Production: Crucial for power supply to drilling rigs, refineries, offshore platforms, and hazardous onshore facilities.
• Pharmaceutical and Fine Chemical Facilities: Ensuring safe electrical interface for production machinery, laboratory equipment, and material handling systems in explosive atmospheres.
• Mining (Surface Operations): Use in non-coal mines where gas or dust explosion hazards are present (not for underground coal mining unless specifically marked "I").
• Grain Silos, Food Processing, and Woodworking: Critical for power to machinery where combustible dusts (e.g., flour, wood dust) pose an explosion risk.
• Paint and Coating Manufacturing/Application: Safe power outlets for mixing, spraying, and ventilation equipment in areas with flammable solvents.
• Wastewater Treatment Plants: Providing sealed and explosion-proof connections for pumps and monitoring equipment.
• Any industrial setting requiring reliable, high-current, explosion-proof, and flexible power access.