Atex Approved Led Lighting, Atex Zone 21 Vs 22

Zone 21 means the project site may produce combustible dust, fiber normally when the project operates, here are some recommended explosion proof lighting, control box and fittings for your options subject to ATEX and IECEx standard.

What is Zone 21?

Zone 21 Definition

In Simple Word

Zone 21 area means ignitable concentrations of hazards, flammable dust, are likely to exist under normal operating conditions.

In Quantitative Measurement

Zone 21 area means ignitable concentrations of hazards, flammable dust, present from 10 hours to 1,000 hours every year.

Area Classification Zone 21
In Accordance with ATEX IEC60079

Where ignitable concentrations of flammable dust:

Are likely to exist under normal operating conditions

May exist frequently because of repair, maintenance operations or leakage

Zone 21

ATEX/IECEx

IP66+



Explosion Proof Lighting



Explosion Proof Boxes



Explosion Proof Fittings

Explosion Proof High Bay Lighting

Explosion Proof Led High Bay Lights Class 1 Div 1 Zone 1 SHB Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 30-240W

Type 4X, IP66

View More

Explosion Proof Led High Bay Lights Class 1 Div 1 Zone 1 SHB Series

Explosion Proof Led High Bay Lights Class 1 Div 1 Zone 1 SO-I Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 30-150W

Type 4X, IP66

View More

Explosion Proof Led High Bay Lights Class 1 Div 1 Zone 1 SO-I Series

Explosion Proof Led High Bay Lights Class 1 Div 2 Zone 2 SVM Series

Class I Division 2

Zone 2, Zone 21&22

LED30-240W

Type 4X, IP66

View More

Explosion Proof Led High Bay Lights Class 1 Div 2 Zone 2 SVM Series

Explosion Proof Led High Bay Lights Class 1 Div 2 Zone 2 SHB-II Series

Class I Division 2

Zone 2, Zone 21&22

LED 30-300W

Type 4X, IP66

View More

Explosion Proof Led High Bay Lights Class 1 Div 2 Zone 2 SHB-II Series

Explosion Proof Flood Light

Explosion Proof Led Flood Light Class 1 Div 1 Zone 1 SHF-I Series

Class I Division 1

Zone 1&2, Zone 21&22

Type 4X, IP66

View More

Explosion Proof Led Flood Light Class 1 Div 1 Zone 1 SHF-I Series

Explosion Proof Led Flood Light Class 1 Div 1 Zone 1 SHF-IA Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 20-200W

Type 4X, IP66

View More

Explosion Proof Led Flood Light Class 1 Div 1 Zone 1 SHF-IA Series

Explosion Proof Led Flood Light Class 1 Div 2 Zone 2 SHF-II Series

Class I Division 2

Zone 1&2, Zone 21&22

LED 20-180W

Type 4X, IP66

View More

Explosion Proof Led Flood Light Class 1 Div 2 Zone 2 SHF-II Series

Explosion Proof Led Flood Light Class 1 Div 2 Zone 2 SHF-IIA Series

Class I Division 2

Zone 2, Zone 21&22

LED 20-400W

Type 4X, IP66

View More

Explosion Proof Led Flood Light Class 1 Div 2 Zone 2 SHF-IIA Series

Explosion Proof Led Street Light Class 1 Div 1 Zone 1 SSL Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 80-300W

Type 4X, IP66

View More

Explosion Proof Led Street Light Class 1 Div 1 Zone 1 SSL Series

Explosion Proof Led Gas Station Canopy Lights Class 1 Div 2 Zone 2 SCP Series

Class I Division 2

Zone 2, Zone 21&22

LED 40-150W

Type 4X, IP66

View More

Explosion Proof Led Gas Station Canopy Lights Class 1 Div 2 Zone 2 SCP Series

Explosion Proof Fluorescent Lighting

Explosion Proof Led Linear Fluorescent Lights Class 1 Div 1 Zone 1 SLL-I Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 20-120W

Type 4X, IP66

View More

Explosion Proof Led Linear Fluorescent Lights Class 1 Div 1 Zone 1 SLL-I Series

Explosion Proof Led Linear Fluorescent Lights Class 1 Div 2 Zone 2 SLL-II Series

Class I Division 2

Zone 2, Zone 21&22

LED 20-80W

Type 4X, IP66

View More

Explosion Proof Led Linear Fluorescent Lights Class 1 Div 2 Zone 2 SLL-II Series

Explosion Proof Led Linear Fluorescent Lights Class 1 Div 2 Zone 2 SLe Series

Class I Division 2

Zone 1&2, Zone 21&22

LED 9-80W

Type 4X, IP66

View More

Explosion Proof Led Linear Fluorescent Lights Class 1 Div 2 Zone 2 SLe Series

Explosion Proof Emergency Lighting

Explosion Proof Led Emergency Bug-eye Lights SEG Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 2x5W

Type 4X, IP66

View More

Explosion Proof Led Emergency Bug-eye Lights SEG Series

Explosion Proof Led Emergency Exit Sign Lights SES Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 5W

Type 4X, IP66

View More

Explosion Proof Led Emergency Exit Sign Lights SES Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 5W

Type 4X, IP66

View More

Explosion Proof Alarm Lights SAV Series

Explosion Proof Flashlight

Explosion Proof Led Class 1 Div 1 Flashlight SPL-A Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 2x5W

Type 4X, IP67

View More

Explosion Proof Led Class 1 Div 1 Flashlight SPL-A Series

Explosion Proof Led Class 1 Div 1 Torch Lights SPL-B Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 5W

Type 4X, IP65

View More

Explosion Proof Led Class 1 Div 1 Torch Lights SPL-B Series

Explosion Proof Led Division 2 Flashlight SPL-C Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 5W

Type 4X, IP68

View More

Explosion Proof Led Division 2 Flashlight SPL-C Series

Explosion Proof Led Flashlight Portable Search Lights SPL-D Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 2x5W

Type 4X, IP65

View More

Explosion Proof Led Flashlight Portable Search Lights SPL-D Series

Explosion Proof Led Flashlight Portable Work Lights SPL-E Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 5W

Type 4X, IP65

View More

Explosion Proof Led Flashlight Portable Work Lights SPL-E Series

Explosion Proof Led Flashlight Portable Headlamp SPL-F Series

Class I Division 1

Zone 1&2, Zone 21&22

LED 5W

Type 4X, IP67

View More

Explosion Proof Led Flashlight Portable Headlamp SPL-F Series

Explosion Proof Switch

Explosion Proof Lighting Switch SW-A Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.32A

Type 4X, IP66

Built-in Switch

View More

Explosion Proof Lighting Switch SW-A Series

Explosion Proof Lighting Switch SW-P Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.32A

Type 4X, IP66

Built-in Switch

View More

Explosion Proof Lighting Switch SW-P Series

Explosion Proof Junction Box

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.32A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Junction Box Flameproof Junction Box Exd SJB-IIB Series

Explosion Proof Junction Box Flameproof Junction Box Exd SJB-IIC Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.32A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Junction Box Flameproof Junction Box Exd SJB-IIC Series

Explosion Proof Junction Box Class 1 Div 2 Ex e Junction Box SJB-A-e Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.125A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Junction Box Class 1 Div 2 Ex e Junction Box SJB-A-e Series

Explosion Proof Junction Box Exd 11b Junction Box SJB-A-IIB Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.400A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Junction Box Exd 11b Junction Box SJB-A-IIB Series

Explosion Proof Junction Box Exd Junction Box SJB-A-IIC Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.250A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Junction Box Exd Junction Box SJB-A-IIC Series

Explosion Proof Junction Box Glass Reinforced Plastic Ex e SJB-P Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.125A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Junction Box Glass Reinforced Plastic Ex e SJB-P Series

Explosion Proof Junction Box Stainless Steel Junction Box Ex e SJB-S Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.125A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Junction Box Stainless Steel Junction Box Ex e SJB-S Series

Explosion Proof Panel

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.630A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Panel Ex d 11b Explosion Proof Panelboards SPN-d-IIB Series

Explosion Proof Panel Ex d Hazardous Location Panel SPN-d-IIC Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.250A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Panel Ex d Hazardous Location Panel SPN-d-IIC Series

Explosion Proof Panel Ex de 11b Hazardous Area Control Systems SPN-de-IIB Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.630A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Panel Ex de 11b Hazardous Area Control Systems SPN-de-IIB Series

Explosion Proof Panel Ex de Atex db Power Distribution Panel SPN-de-IIC Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.200A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Panel Ex de Atex db Power Distribution Panel SPN-de-IIC Series

Explosion Proof Panel Glass Reinforced Plastic Atex DB SPN-ed-P Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.160A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Panel Glass Reinforced Plastic Atex DB SPN-ed-P Series

Explosion Proof Panel Class 1 Div 2 Miniature Circuit Breaker SPN-ed-S Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.160A

Type 4X, IP66

Built-in Terminal blocks

View More

Explosion Proof Panel Class 1 Div 2 Miniature Circuit Breaker SPN-ed-S Series

Explosion Proof Enclosure

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.250A

Type 4X, IP66

View More

Explosion Proof Enclosure Ex e Explosion Proof Aluminum Enclosure SEE-e Series

Explosion Proof Enclosure Exd 11b Class 1 Div 1 Enclosure SEE-IIB Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.1200A

Type 4X, IP66

View More

Explosion Proof Enclosure Exd 11b Class 1 Div 1 Enclosure SEE-IIB Series

Explosion Proof Enclosure Exd 11c Class 1 Div 1 Enclosure SEE-IIC Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.630A

Type 4X, IP66

View More

Explosion Proof Enclosure Exd 11c Class 1 Div 1 Enclosure SEE-IIC Series

Explosion Proof Enclosure GRP Hazardous Location Enclosure SEE-P Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.250A

Type 4X, IP66

View More

Explosion Proof Enclosure GRP Hazardous Location Enclosure SEE-P Series

Explosion Proof Enclosure Stainless Steel Explosion Proof Enclosures SEE-S Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.250A

Type 4X, IP66

View More

Explosion Proof Enclosure Stainless Steel Explosion Proof Enclosures SEE-S Series

Explosion Proof Receptacle

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

＜125A

Type 4X, IP66

View More

Explosion Proof Receptacle Explosion Proof Socket and Plug SSP-P Series

Explosion Proof Receptacle Flame Proof Socket and Plug SSP-A Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

＜125A

Type 4X, IP66

View More

Explosion Proof Receptacle Flame Proof Socket and Plug SSP-A Series

Explosion Proof Cable Gland

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.M63x1.5

Type 4X, IP65

Plastic

View More

Explosion Proof Cable Gland Exe Cable Gland SGP Series

Explosion Proof Cable Gland Flameproof Cable Gland SGM Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.M75x1.5(NPT 2 1/2")

Type 4X, IP66

Mental

View More

Explosion Proof Cable Gland Flameproof Cable Gland SGM Series

Explosion Proof Cable Gland Hazardous Area Cable Glands SGN Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.M75x1.5(NPT 2 1/2")

Type 4X, IP66

Non-armored

View More

Explosion Proof Cable Gland Hazardous Area Cable Glands SGN Series

Explosion Proof Cable Gland Hazardous Area Cable Glands SGA Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.M75x1.5(NPT 2 1/2")

Type 4X, IP66

Armored

View More

Explosion Proof Cable Gland Hazardous Area Cable Glands SGA Series

Explosion Proof Connector

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.115x1.5(NPT 4")

Type 4X, IP66

View More

Explosion Proof Connector Adaptors SA Series

Explosion Proof Connector Explosion Proof Reducing Bushing SR Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.115x1.5(NPT 4")

Type 4X, IP66

View More

Explosion Proof Connector Explosion Proof Reducing Bushing SR Series

Explosion Proof Connector Explosion Proof Unions SU Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.115x1.5(NPT 4")

Type 4X, IP66

View More

Explosion Proof Connector Explosion Proof Unions SU Series

Explosion Proof Connector Elbows SE Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.115x1.5(NPT 4")

Type 4X, IP66

View More

Explosion Proof Connector Elbows SE Series

Explosion Proof Connector Conduit Hubs SH Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.115x1.5(NPT 4")

Type 4X, IP66

View More

Explosion Proof Connector Conduit Hubs SH Series

Explosion Proof Connector Class 1 Div 2 Liquid Tight Connectors SL Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.115x1.5(NPT 4")

Type 4X, IP66

View More

Explosion Proof Connector Class 1 Div 2 Liquid Tight Connectors SL Series

Explosion Proof Conduit Fittings

Explosion Proof Conduit Body Outlet Fittings Couplings SCB Series

C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.63x1.5(NPT 2")

Type 4X, IP66

View More

Explosion Proof Conduit Body Outlet Fittings Couplings SCB Series

Explosion Proof Sealing Fittings Couplings SCS Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.63x1.5(NPT 2")

Type 4X, IP66

View More

Explosion Proof Sealing Fittings Couplings SCS Series

Explosion Proof Flexible Conduit Couplings SFC Series

C1D1, C1D2, C2D1, C2D2

Zone 1&2, Zone 21&22

Max.63x1.5(NPT 2")

Type 4X, IP66

View More

Explosion Proof Flexible Conduit Couplings SFC Series

FAQ for Zone 21

What is Zone 21 ATEX?

Zone 21 ATEX is a place in which an explosive atmosphere, in the form of a cloud of combustible dust in air, is likely to occur occasionally in normal operation based on EN60069 standard. For example, bagging points and inspection point of flammable dusts are frequently opened. In the open air, dust clouds are unlikely to persist for more than a brief period, and any zoning is likely to be very limited in extent, in this case, we classify this location as Zone 21 ATEX.

What is the difference between Zone 21 and Zone 22?

The typical difference between Zone 21 and Zone 22 is the duration time of flammable dusts in the environment. Flammable dusts last from 1 hour to 10 hours in 365 days in Zone 22, but from 10 hours to 1000 hours in 365 days in Zone 21. Thus, Zone 21 is more dangerous than Zone 22. Electrical equipment certified for Zone 21 can be also used in Zone 22, but electrical equipment certified for Zone 22 can be NOT used in Zone 21.

FAQ for Explosion Proof Lighting Zone 21

FAQ for Explosion Proof High Bay Lighting Zone 21

What does ATEX stand for?

ATEX is the most recognized standard for explosion proof equipment all over the world. ATEX stands for Atmosphères Explosibles. It’s a European Union directive from the European Committee for Standardization that covers “equipment and protective systems intended for use in potentially explosive atmospheres.” An atmosphere can be explosive for several reasons, including flammable gases, mists or vapors, or combustible dust.

All equipment and protective systems intended for this type of use in the EU must meet ATEX health and safety requirements.

Which area classification zone is the most hazardous?

Zone 0 and Zone 20 area are respectively the most hazardous in flammable gases and dusts areas. Zone 0 and Zone 20 are areas in which a combustible gases or dusts, as a cloud, present continuously or frequently during normal operations in sufficient quantities to produce an explosive mixture, usually more than 1000 hours every year.

What is IECEx certificate?

IECEx certificate stands for certificate of International Electrotechnical Commission Explosive, is widely recognized by users in the world excluding in Europe and North America, provides a means for manufacturers, regulators and users of equipment used in hazardous areas to address the risk of fires or explosions from flammable gases or dusts. The objective of the IECEx System is to facilitate international trade in equipment and services for use in explosive atmosphere, maintaining International Confidence in equipment, personnel, and services.

Lighting The Way To Safety! Choose SUREALL, Sure For All!

Want to Get High-quality LED lighting, explosion proof lighting and other explosion-proof fittings? Welcome to SUREALL