D-RG148H EC Centrifugal Blower for Combustion-Air Systems

D-RG148H combines EC motor technology with a centrifugal blower design for controlled air delivery in heating and combustion equipment. Its compact format supports OEM integration where airflow and pressure must match the system duty point.

The model-specific table below gives the electrical and performance values needed for selection. Where supplied, the performance curve and dimensional drawing help assess fit in the final assembly.

Control and mounting details depend on the selected configuration. Confirm the electrical interface, wiring and installation requirements with E-Power before finalizing the equipment design.

Technical Specifications - D-RG148H

Specifications for model D-RG148H, taken from the D-RG148H column of the EC centrifugal blower catalog.

Parameter	D-RG148H
Rated voltage	100-120 / 220-230 VAC
Frequency	50/60 Hz
Power input	300 W ±10%
Maximum speed	7,300 rpm ±10%
Airflow	260 m³/h / 153 CFM
Input current	3.0 / 1.8 A
Maximum static pressure	4,100 Pa ±5%
Net weight	2.1 kg

Dimensions and Mounting

The dimensional drawing covers the D-RG148L, D-RG148 and D-RG148H housing family. All dimensions shown are in millimeters.

Overall dimensions: 184.4 mm wide, 190.7 mm high and 145.2 mm deep. The drawing also shows the outlet flange, mounting holes, power connector and speed-control connector.

Airflow-Pressure Performance

The green curve is D-RG148H. The red and blue curves show D-RG148L and D-RG148 for comparison. Airflow is plotted against static pressure.

Wiring Diagram and Control Connections

PWM control: Start above 5% duty cycle. Full speed with no PWM connection or a 100% duty cycle. Verify connector orientation and supply rating against the approved engineering drawing before installation.

Installation Orientation

Install with the shaft horizontal or the motor mounted on top, as shown below.

Key Features of EC Gas Blower

Energy Efficient EC Motor Design

Electronically commutated motor technology enables adjustable blower operation. Available control functions and connections depend on the supplied configuration; refer to the model wiring information where provided.

Main advantages:

• High energy efficiency operation
• Precise speed regulation
• Stable motor performance
• Reduced power consumption
• Long service life

Optimized Airflow Performance

The centrifugal impeller and housing are designed to deliver airflow against system resistance. Compare the listed airflow and static-pressure values with the intended operating point.

Features include:

• Consistent airflow supply
• Low vibration operation
• Reduced operating noise
• Reliable combustion support
• Compact installation design

Applications

This EC Gas Blower is suitable for:

Heating Systems

• Gas boilers
• Heating equipment
• Combustion appliances
• Industrial heating systems

HVAC Equipment

• Air handling equipment
• Ventilation systems
• Thermal management equipment

Industrial Applications

• Industrial combustion equipment
• Air supply systems
• Customized ventilation solutions

E-Power products are widely used in food processing machinery, HVAC equipment, medical equipment, industrial air purification systems and various ventilation applications.

OEM Customization Capability

E-Power works with OEM customers to review airflow targets, motor settings and electrical interfaces for each application. Final options are confirmed during engineering review.

Customization services include:

• Airflow and pressure adjustment
• Motor parameter matching
• Electrical interface customization
• Structural optimization
• Control system integration

The company has independent capabilities in product design, research and development, and electronic control software development.

Manufacturing & Quality Assurance

E-Power operates complete manufacturing facilities including:

• Motor production lines
• Fan assembly lines
• Product testing equipment

The company has an annual production capacity of 200,000 fans, supporting stable OEM supply for global customers.

Quality control includes:

• Incoming material inspection
• Motor performance testing
• Airflow testing
• Noise testing
• Reliability verification
• Final product inspection

Certifications and compliance:

• CE
• LVD
• RoHS
• REACH
• cUL
• ISO9001

Why Choose Our EC Gas Blower