CZ0252 Explosion Proof Plugs and Sockets – Safe, Reliable & Certified for Hazardous Areas

At Sensor Control LLC, we are proud to be a trusted supplier of the CZ0252 Full Plastic Explosion-proof Plugs and Sockets in the UAE and across international markets. Designed for highly hazardous environments, this product offers reliable power connectivity with industry-leading certifications like IECEx, ATEX, and CCC. It’s engineered for industries where safety, durability, and performance are non-negotiable — including petrochemical plants, refineries, offshore platforms, and other industrial facilities operating in Zone 1, Zone 2 (Gas) and Zone 21, Zone 22 (Dust).

1. Product Overview

The CZ0252 explosion-proof plug and socket series is specifically developed for environments prone to flammable gases and dust. It boasts full plastic anti-static GRP (Glass-reinforced polyester) construction, ensuring both rugged durability and superior resistance to chemical corrosion and environmental damage.

Whether it’s the wall-mounted socket, panel-mounted, or coupler types, each component is built with precise attention to industrial safety standards.

2. Product Certifications

CZ0252 comes with globally recognized explosion protection approvals:

• CCC (China Compulsory Certification)

• IECEx (International Electrotechnical Commission System for Certification)

• ATEX (European Union Certification for Explosive Atmospheres)

Explosion Protection Markings Include:

• Gas Group: Ex db eb IIC T6/T5 Gb

• Dust Group: Ex tb IIIC T80°C/T95°C Db

• Protection Zones: Certified for use in Zone 1, 2 (Gas) and Zone 21, 22 (Dust)

• Ambient Temperature Range: -40°C to +55°C, adaptable to both cold and hot environments

These certifications ensure that CZ0252 complies with the strictest global safety standards, giving operators complete confidence in their hazardous location installations.

3. Technical Features & Electrical Performance

The CZ0252 explosion-proof plug and socket are engineered to deliver robust electrical connectivity with high safety performance. Some of the notable electrical and mechanical characteristics include:

• Rated Voltage:

  • 4 poles – up to 690V AC (50/60Hz)

  • 5 poles – up to 415V AC (50/60Hz)

• Rated Current:

  • 32A, ideal for medium power applications in explosive areas.

• Rated Switch Capacity:

  • AC-3 690V/32A, ensuring consistent load performance

• Auxiliary Switch Ratings:

  • AC250V/5A

  • DC250V/0.25A

• Terminal Capacities:

  • Wall type, panel, and coupler: 2 × 6 mm²

  • Plug: 1 × 6 mm²

• Auxiliary Contacts (Wall type):

  • 1 × 1 mm²

• Degree of Protection:

  • IP66 (Panel & Coupler Types) – Total protection from dust and high-pressure water jets

  • IP65 (Wall Type) – Excellent dust protection and water resistance

4. Mechanical Design & Materials

The CZ0252 plug and socket are crafted using GRP (anti-static glass fibre reinforced polyester) – a highly durable and corrosion-resistant material suitable for harsh environments.

Additional design advantages include:

• Self-cleaning Inserting Sleeve – Reduces transmission resistance and ensures long-term contact performance

• Low Insertion & Pulling Force – Designed for ease of use during frequent connections/disconnections

• Protective Covers – Maintains high ingress protection and prevents contamination or moisture from entering

• Cable Entry (Wall Type):

  • Moulded plastic 1 × M32 × 1.5 (for cables Ø12 ~ 21mm)

  • Comes with a stopping plug

  • Compatible with other certified cable glands

• Plug/Coupler Cable Entry:

  • 4 & 5 pole plugs support cable diameters from Ø10 to 28mm

This mechanical configuration ensures quick and secure connections while protecting the device’s internal parts from dust, humidity, and explosive vapors.

5. Application Areas

The CZ0252 model is built to serve critical sectors where the risk of explosion is constant. Its flexibility in mounting options (wall, panel, coupler) makes it suitable for a wide range of applications, including:

• Oil & Gas Facilities

• Chemical and Petrochemical Plants

• Pharmaceutical Industries

• Paint Shops and Flammable Storage Warehouses

• Mining Operations

• Offshore Platforms and Marine Terminals

• Food & Beverage Plants (with dust explosion risks)

These sectors often require mobile or semi-permanent electrical connections for lighting systems, equipment control units, heating elements, or motorized devices – and the CZ0252 meets all those needs safely and efficiently.

6. Safety and Convenience

The CZ0252 isn’t just about compliance—it’s about ease of use and reliability in the field. Its safety and operational features include:

• Precision Contact Alignment – Reduces wear and prolongs product life

• Anti-static Design – Minimizes risk of ignition from static discharge

• User-Friendly Handling – Lightweight construction with secure locking mechanism

• Interlock Compatibility – Can be integrated with switch interlocks for additional operational security