Duct Heaters type EFFK
Duct heaters for air heating systems, e.g. supplementary heating in heat regeneration systems in houses or in connection with air duct systems.
Application
Electrical duct heaters are designed for flange mounting in connection with climate control/heat generation and ventilation systems. Special constructions for e.g. grain dryers, process systems, ships and high-temperature duct heaters are made upon request.
Construction
Material
The duct heaters are available as standard in hot-galvanised steel plate, but can be made of other materials, if requested.
Explosion-proof heaters
In addition to the duct heaters mentioned in this brochure Sinus Jevi offers a complete program of explosion-proof heaters. Please ask our sales department for more information.
Duct section
Spotwelded galvanised steel plate with a flange. Proofing is IP34 other proofings can be made, if required.
Heating elements
Tubular heating elements made of AISI 304 (stainless) with a surface load of 2.5 W/cm² for air velocities above 2 m/sec. For air velocities below 2 m/sec a low surface load is used.
For high-temperature elements (max 800°C tubular cap temperature) AISI 309/Inconell (stainless) is used as tubular material. The heating elements are fitted with M14 brass plugs.
Overheating Protection
In the terminal box there is a built-in thermolimiter featuring automatic reset and a fire thermostat with manuel reset. These must be connected to the temperature control.
Temperature Regulation
It is recommended to use a multistep control device, e.g. Sinus Jevi’s control featuring binary step control. However, duct heaters below 16.5 kW can be controlled by an electronic control.
Contact Sinus Jevi’s technical department if you have special demands.
Types of this product
| Article number | Type | Item number | Output | Voltage | Dimensions | EAN code |
| 401 005 400A | EFFK | 21803051 | 5.25 kW | 3 x 400 Volt | 300 x 300 x 300 mm | 8715179005221 |
| 401 009 400C | EFFK | 21803101 | 9.60 kW | 3 x 400 Volt | 300 x 300 x 300 mm | 8715179005238 |
| 401 018 400B | EFFK | 21803150 | 18.90 kW | 3 x 400 Volt | 300 x 300 x 300 mm | 8715179005245 |
| 401 010 400A | EFFK | 21804109 | 10.80 kW | 3 x 400 Volt | 400 x 400 x 400 mm | 8715179005252 |
| 401 018 400A | EFFK | 21804190 | 18.90 kW | 3 x 400 Volt | 400 x 400 x 400 mm | 8715179005269 |
| 401 029 400A | EFFK | 21804281 | 29.40 kW | 3 x 400 Volt | 400 x 400 x 400 mm | 8715179005276 |
| 401 038 400A | EFFK | 21804406 | 38.10 kW | 3 x 400 Volt | 400 x 400 x 400 mm | 8715179005283 |
| 401 024 400A | EFFK | 21805239 | 24.60 kW | 3 x 400 Volt | 500 x 500 x 500 mm | 8715179005290 |
| 401 048 400A | EFFK | 21805502 | 48.60 kW | 3 x 400 Volt | 500 x 500 x 500 mm | 8715179005306 |
| 401 076 400A | EFFK | 21805775 | 76.60 kW | 3 x 400 Volt | 500 x 500 x 500 mm | 8715179005313 |
| 401 031 400A | EFFK | 21806328 | 31,50 kW | 3 x 400 Volt | 600 x 600 x 600 mm | 8715179005320 |
| 401 058 400A | EFFK | 21806591 | 58,50 kW | 3 x 400 Volt | 600 x 600 x 600 mm | 8715179005337 |
| 401 094 400A | EFFK | 21806955 | 94,50 kW | 3 x 400 Volt | 600 x 600 x 600 mm | 8715179005344 |
| 401 112 400A | EFFK | 21806112 | 112,50 kW | 3 x 400 Volt | 600 x 600 x 600 mm | 8715179005351 |
