Fans
Fans DKHR400-4SW.123.5FA centrifugal blower
A centrifugal blower for HVAC systems, rated IP54 with dual-frequency 50/60 Hz operation and multi-voltage 208–460 V input
- Runs on 50 Hz or 60 Hz mains for flexible installation
- IP54 rating protects motor from dust and water splashes
- Handles air up to 70 °C for demanding thermal environments
- Weighs 15 kg for solid mounting without extra reinforcement
- Dual-voltage 230/400 V or 208-460 V options suit global power grids
Industrial HVAC blower
The Rosenberg DKHR400-4SW.123.5FA centrifugal blower is built for industrial HVAC installations that need a compact, direct-drive fan. It serves plant engineers and maintenance teams who require reliable airflow in ductwork, air-handling units or equipment-cooling cabinets. The unit is supplied new and rated for continuous operation in commercial and light-industrial environments.
Thermal and electrical performance
At 50 Hz the motor draws 0.60 kW and 2.60 A at 230 V delta or 1.50 A at 400 V star, reaching 1425 rpm with a startup ratio of 5.0. At 60 Hz the same frame delivers 0.87 to 0.95 kW across 208, 230, 380 and 460 V connections, spinning at 1620 to 1680 rpm with a startup ratio of 4.1. Maximum ambient temperature is 70 °C and the enclosure meets IP54 protection.
Build and integration
The blower weighs 15 kg and uses wiring diagrams 01.006 and 01.005 for the various voltage configurations. No capacitor is required, simplifying the terminal box layout. The multi-voltage windings let installers match local three-phase supplies without rewinding, while the IP54 rating allows mounting in damp or dusty plant rooms. Buyers who need a different impeller diameter or a belt-drive arrangement should look elsewhere.
Highlights
- Runs on 50 Hz or 60 Hz mains for flexible installation
- IP54 rating protects motor from dust and water splashes
- Handles air up to 70 °C for demanding thermal environments
- Weighs 15 kg for solid mounting without extra reinforcement
- Dual-voltage 230/400 V or 208-460 V options suit global power grids
Specifications
No published specifications for this item yet.
Questions about this item
How do I wire the DKHR400-4SW.123.5FA for 400 V Y connection at 50 Hz?
Use wiring diagram 01.005 for the 230D/400Y configuration. Connect the three phases to the terminal block in star arrangement, ensure the earth terminal is bonded, and verify rotation matches the arrow on the housing before securing the inlet guard.
What bearing maintenance does the DKHR400-4SW.123.5FA require over its service life?
The motor uses sealed-for-life ball bearings; no relubrication is needed. Plan to replace the complete fan assembly once vibration or noise exceeds the original baseline, typically after several years of continuous 50 Hz operation.
What is the first thermal limit reached when the DKHR400-4SW.123.5FA runs continuously at 50 Hz?
The maximum permitted air-stream temperature is 70 °C. If the inlet air approaches this value the motor winding temperature will hit its class limit first, so derate airflow or add upstream cooling before exceeding 70 °C.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
