
ATEX – Standard
Explosion-proof heaters are used in many industrial or commercial applications that are classified as hazardous areas. Our appliances are used to heat the ambient air of hazardous areas in zone 1 and 2, typically in chemical industries, paint and lacquer industries, sewage plants and mining. Heaters made of high-grade stainless steel are recommended for aggressive environments (e.g. sewage plants), while heaters with a painted or coated surface, also available with protection basket, are sufficient for standard applications.
Available on request: further types of explosion-proof heaters and our technical data sheets, as well as the TR-CU certificate.
Temperature classification: T4 < 135°C, T3 < 200°C, T2 < 300°C
Ex-Space heater with protection basket
Heating-element of high-grade stainless steel tube heaters, protection basket and terminal box painted, with built-in temperature guard. External Ex- thermostat needed, see offer below.
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Type DHG11 B01/R1 |
Wattage (230V) | Temp.-Class | Length mm | Weight kg | Order No. |
Tube heater high-grade stainless steel Protection basket and Case painted |
500 W | T3 | 900 | 17 | Ex 0500-K1 |
1000 W | T3 | 1450 | 19 | Ex 1000-K1 | |
1000 W | T4 | 1450 | 21 | Ex 1000-K2 | |
2000 W | T3 | 1450 | 21 | Ex 2000-K2 | |
3000 W | T2 | 1450 | 21 | Ex 3000-K1 | |
3000 W | T3 | 2025 | 24 | Ex 3000-K2 | |
2000 W / 400 V 3N | T3 | 1450 | 21 | Ex 2000-K2S |
Ex-Finned Tube Heater high-grade stainless steel
Completely made of high-grade stainless steel, for aggressive or corrosive environment.
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Type DHG57 A02/R3 |
Wattage (230V) | Temp.- Class | Length mm | Weight kg | Order No. |
High-grade stainless steel |
1000 W | T3 | 1230 | 18 | Ex1000-E |
1600 W | T2 | 1230 | 18 | Ex1600-E | |
1500 W | T3 | 1835 | 25 | Ex1500-E |
Ex-Finned Tube Heater powder- coated
Type completely powder coated for standard applications in hazardous areas.
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Type DHG57A02/R4 | Wattage (230V) | Temp.- Class | Length mm | Weight kg | Order No. |
powder coated | 500 W | T3 | 765 | 12 | Ex0500-L |
1000 W | T3 | 1260 | 18 | Ex1000-L | |
1500 W | T3 | 1865 | 25 | Ex1500-L | |
2000 W | T3 | 2360 | 30 | Ex2000-L |
Ex-Finned Tube Heater, galvanized, with protection basket
Type galvanized finned tube, painted case and protection basket.
![]() Ingress protection IP66 |
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Type DHG57 A02/R2 | Wattage (230V) | Temp.- Class | Length mm | Weight kg | Order No. |
galvanized finned tube, painted case and protection basket |
500 W | T3 | 740 | 14 | Ex 0500-LK |
850 W | T2 | 740 | 14 | Ex 0850-LK | |
1000 W | T3 | 1235 | 22 | Ex 1000-LK | |
1600 W | T2 | 1235 | 22 | Ex 1600-LK | |
1500 W | T3 | 1840 | 30 | Ex 1500-LK | |
2500 W | T2 | 1840 | 30 | Ex 2500-LK |
Ex-Thermostats
![]() Ex II 2 G EEx q II T6, EU Prototype Test Certificate ZELM 02 ATEX 0077; IP 54 |
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Type | Range | switching power | Order No. |
Thermostat | – 20°C bis + 50°C | 400 V 16 A | ExRT-20-50 |
Add-on thermostat* | 0°C bis + 50°C | 400 V 16 A | Ex Ab0-50 |
Thermostat with fixed temperature | fixed + 5°C | 400 V 16 A | ExRT-F-05 |
Thermostat with fixed temperature | fixed + 10°C | 400 V 16 A | ExRT-F-10 |
Thermostat with fixed temperature | fixed + 15°C | 400 V 16 A | ExRT-F-15 |