Duct Heaters type EFR

Approval

EFR standard duct heaters for 230 V are approved by DEMKO.
For the EFR duct heaters Sinus Jevi can offer two types of simple one pole capillary thermostats, which can be used as a room thermostat or with a duct sensor. Both thermostats can be connected directly to the duct heater and use up to 16 A.
EFR is available for 400 V as well as other diameters and output levels.

Application

Duct heaters for air heating systems, e.g. supplementary heating in heat regeneration systems in houses or in connection with air duct systems.

Construction

Duct Section
Round galvanised steel tube with a ruber sealing ring in both ends.

Terminal Box
Electroplated sheet iron box fitted with one PG16 cable gland. Electric supply though the fitted row of clamps.
Proofing IP34.

Heating Elements
Tubular heating elements made of AISI 304 (stainless) with a surface load of 2.5 W/m² for air velocities above 2 m/sec.

Overheating Protection
In the terminal box there is a built-in one pole thermolimiter (30 – 87°C) with automatic reset as well as one safety fuse (125°C).

Temperature Regulation
It is recommended to control the air temperature by a room thermostat, e.g.Pulser or TTC series.

Types of this product

Article number Type Item  number Output Voltage Dimensions EAN code
402 125 033A EFR 21800016 335 Watt 230 Volt Ø125×400 mm 8715179004996
402 125 067A EFR 21800024 670 Watt 230 Volt Ø125×400 mm 8715179005009
402 125 100A EFR 21800032 1000 Watt 230 Volt Ø125×400 mm 8715179005016
402 125 200A EFR 21800040 2000 Watt 230 Volt Ø125×400 mm 8715179005023
402 160 033A EFR 21800057 335 Watt 230 Volt Ø160×400 mm 8715179005030
402 160 067A EFR 21800081 670 Watt 230 Volt Ø160×400 mm 8715179005047
402 160 100A EFR 21800115 1000 Watt 230 Volt Ø160×400 mm 8715179005054
402 160 200A EFR 21800149 2000 Watt 230 Volt Ø160×400 mm 8715179005061
402 200 033A EFR 21800164 335 Watt 230 Volt Ø200×400 mm 8715179005078
402 200 067A EFR 21800180 670 Watt 230 Volt Ø200×400 mm 8715179005085
402 200 100A EFR 21800206 1000 Watt 230 Volt Ø200×400 mm 8715179005092
402 200 200A EFR 21800222 2000 Watt 230 Volt Ø200×400 mm 8715179005108
402 250 033A EFR 21800248 335 Watt 230 Volt Ø250×400 mm 8715179005115
402 250 067A EFR 21800263 670 Watt 230 Volt Ø250×400 mm 8715179005122
402 250 100A EFR 21800289 1000 Watt 230 Volt Ø250×400 mm 8715179005139
402 250 200A EFR 21800305 2000 Watt 230 Volt Ø250×400 mm 8715179005146