Explosion Proof Plugs and Sockets | CZ0251

Trusted Hazardous Area Electrical Specialist

Sensor Control LLC proudly supplies the CZ0251 full plastic explosion proof plugs and sockets in the UAE. These reliable and certified connectors are designed for use in hazardous environments (Zone 1, Zone 2, Zone 21, Zone 22) where gas or dust may create explosive atmospheres. The CZ0251 series offers international certifications including IECEx, ATEX, and CCC, ensuring maximum safety, efficiency, and compliance across a wide range of industries.

Overview and Applications

The CZ0251 explosion-proof series is specifically designed for safe and stable electrical connection in environments with flammable gases, vapors, and combustible dust. These plugs and sockets are used in both indoor and outdoor installations, such as:

Oil & Gas Installations
Refineries and Petrochemical Plants
Chemical Processing Units
Offshore Platforms
Paint Shops and Spray Booths
Fuel Storage Facilities
Grain Silos and Dust-Prone Areas
Tunnels and Heavy Industrial Sites

Their robust structure and anti-static enclosure make them ideal for areas where corrosion resistance, mechanical durability, and intrinsically safe operation are required.

Product Highlights and Key Features

1. Explosion-Proof Safety Certified

CZ0251 plugs and sockets are fully certified for use in Zone 1 and Zone 21, offering dependable explosion protection:

IECEx Certificate: IECEx CQM 10.0013X (socket), 10.0014U (panel type)
ATEX Certification: Presafe 16 ATEX 8121X / 8120U
China Certification (CNEx): CNEx16.0842 / CNEx16.0841U

Explosion Protection Markings:

Gas Atmosphere: Ex db eb IIC T5/T6 Gb
Dust Atmosphere: Ex tb IIIC T95°C/T80°C Db

This ensures they meet both gas (G) and dust (D) protection requirements, making them suitable for almost all types of hazardous areas.

2. High Performance Across Temperature Extremes

The CZ0251 series supports an ambient temperature range from -40°C to +55°C, making it perfect for use in extreme desert heat or cold offshore conditions. Whether installed in arid, wet, humid, or dusty locations, these plugs and sockets retain full functionality without risk of material degradation or seal failure.

3. Superior Mechanical and Electrical Design

Key design features include:

Self-Cleaning Inserting Sleeve: Automatically cleans contact points during connection, minimizing resistance and ensuring strong electrical continuity.
Low Force Operation: Requires minimal effort for plug-in and pull-out, reducing operator fatigue during frequent operations.
Protective Covers: Provides additional IP protection, especially when not in use.
Durable Contacts: Engineered for long-term connection cycles without arcing or wear.

4. High IP Protection Ratings

Panel Type and Coupler Type Sockets: Rated IP66 for complete protection against water jets and fine dust.
Wall Type Socket: Rated IP65, making it highly dust-tight and water-resistant.

This robust sealing is essential for maintaining integrity in outdoor and wash-down environments.

5. Wide Range of Electrical Configurations

Rated Current:

16A across all models.

Rated Voltage (AC 50/60Hz or DC):

2 Poles: 50V AC or 50V DC
3 Poles: Up to 250V AC
4 Poles: Up to 690V AC
5 Poles: Up to 415V AC

Rated Switching Capacity:

AC-3: 690V/16A
DC-1: 50V/16A

Auxiliary Switch Capacity:

AC: 250V/5A
DC: 250V/0.25A

Construction and Material Specifications

Anti-Static Plastic Enclosure

The CZ0251 plug and socket body is made of glass fiber reinforced polyester (GRP), which is:

Anti-static
Corrosion-resistant
Impact-resistant
UV-stable

This advanced material ensures the device maintains its shape and strength under pressure, heat, and UV exposure. It is especially ideal for chemical plants, offshore rigs, and marine environments.

Terminal and Cable Entry Options

Terminal Capacity:

Wall/panel/coupler sockets: 2 × 2.5 mm²
Plug: 1 × 2.5 mm²
Wall socket auxiliary contact: 1 × 1 mm²

Cable Entry Configuration (Standard):

Wall Type Socket:
- Molded Plastic: 1×M25×1.5
- Cable OD Range: Φ8 ~ 17 mm
- Includes 1×M25×1.5 stopping plug
Plug & Coupler Type:
- 2/3 poles: Cable OD Φ6.5 ~ 18.5 mm
- 4/5 poles: Cable OD Φ6.5 ~ 20 mm

Note: Other certified cable glands may also be used based on site requirements.

Certified Components for Added Confidence

All versions of the CZ0251 socket (wall-mounted, panel, and coupler types) are available with certified Ex components and options. Auxiliary contacts are available for control signaling or interlock functions.