Duct Heater (400 °C Specification)

Low Pressure Loss, High-Performance Duct Heater



  • Equipped with K-type thermocouple overheat-protection sensors on all models

  • When used with a dedicated automatic temperature controller, the unit can operate at temperatures up to 400 °C

  • As of January 1, 2023, the DH Series duct heaters have changed the overheat-protection sensor specification to K-type thermocouples



Duct Heater Overview

  • Maximum continuous operating temperature: 400 °C
  • Heater capacity: 5 kW to 45 kW
  • High-efficiency honeycomb block heater installed
  • All models include K-type thermocouple overheat-protection sensors for High performance!
  • Can be installed in any orientation (upward, downward, vertical, horizontal, etc.)
  • Capacity can be increased by stacking 2 to 5 stages
  • Maximum allowable internal pressure: approx. 4.9 kPa
  • High-pressure-resistant duct heater DH-□KH (approx. 24.5 kPa) is also available
  • Compatible with large-airflow, low-pressure blowers (such as sirocco fans)


Typical Applications

Note: Some illustrations may contain Japanese text.



  • Auxiliary heat source for heat pumps
  • Heat source for drying ovens
  • Built into drying oven interiors
  • Printing machines
  • Heat source for catalysts
  • Auxiliary heat source for heat pumps
  • Heat source for drying ovens
  • Built into drying oven interiors
  • Printing machines
  • Heat source for catalysts



Our products can also be used for many other applications. Please feel free to contact us for further consultation.

Standard Specifications List

Note:
Duct Heaters are available for 3-phase 220–480 V, 50/60 Hz.
DH-8K is available up to 460 V.
The power supply is factory-set to the specified voltage and cannot be changed by the user.
Please specify the required voltage when placing your order.

Model
DH-1LK
Model No.
3220-480-5
Heater Capacity
5 kW
Power Supply
3-phase 220–480 V, 50/60 Hz
Duct Heater

Model
DH-2K
Model No.
3220-480-5
Heater Capacity
5 kW
Power Supply
3-phase 220–480 V, 50/60 Hz
Duct Heater

Model
DH-2LK
Model No.
3220-480-10
Heater Capacity
10 kW
Power Supply
3-phase 220–480 V, 50/60 Hz
Duct Heater

Model
DH-4K
Model No.
3220-480-10
Heater Capacity
10 kW
Power Supply
3-phase 220–480 V, 50/60 Hz
Duct Heater

Model
DH-4LK
Model No.
3220-480-15
Heater Capacity
15 kW
Power Supply
3-phase 220–480 V, 50/60 Hz
Duct Heater

Model
DH-8K
Model No.
3220-460-20
Heater Capacity
20 kW
Power Supply
3-phase 220–460 V, 50/60 Hz
Duct Heater

Model
DH-12K
Model No.
3220-480-30
Heater Capacity
30 kW
Power Supply
3-phase 220–480 V, 50/60 Hz
Duct Heater

Model
DH-18K
Model No.
3220-480-45
Heater Capacity
45 kW
Power Supply
3-phase 220–480 V, 50/60 Hz
Duct Heater

Model
DH-24K
Model No.
3220-480-45
Heater Capacity
45 kW
Power Supply
3-phase 220–480 V, 50/60 Hz
Duct Heater