English
English
A DOL (Direct-On-Line) Starter Control Panel is the most fundamental and widely used motor starting solution in industrial applications.
Our engineering team can help you select the optimal starter electrical control panel to ensure reliability, efficiency, and longevity for your specific motor-driven application.
Main benefits DOL starter panel
Lowest cost and simple design
High reliability and reduced downtime
Full torque at start
Long service life
Easy Installation and maintenance
Main applications
Manufacturing Industry
Material Processing Industry
Agriculture Industry
HVAC system
Water Treatment
Construction Industry
Product Description
Technical Data
Applications
Discover the DOL (Direct-On-Line) Starter Control Panel – the simplest and most cost-effective motor starting solution for industrial applications. Our DOL starter panels deliver immediate full-voltage starting with high torque, perfect for basic motor control requirements where simplicity and reliability are paramount.
Principle & Operation
The most straightforward method, applying full line voltage directly to the motor terminals via a contactor, resulting in an immediate start.
Key Characteristics:
Typical Application: Ideal for small-power motors (typically ≤11kW) driving equipment like pumps, fans, and conveyors where electrical inrush is not a primary concern.
Engineered for Every Start: From the Rugged Simplicity of DOL, to the Smooth Intelligence of Soft Start, to the Efficient Reliability of Star-Delta – Your Complete Motor Control Solution, Built for Industry.
Choosing between DOL, soft starter, and star-delta electrical control panels?
Our complete motor control solutions include all three technologies. The DOL panel excels in cost-effectiveness for small motors, while soft starters provide smooth acceleration and star-delta starters offer balanced performance for medium-power applications.
Selection Guidance
Each panel type employs a distinct methodology to manage the critical start-up phase of three-phase induction motors, balancing performance, cost, and system protection.
|
Feature |
DOL Starter Panel |
Soft Starter (SS) Panel |
Star-Delta (SD) Starter Panel |
|
Starting Current |
Very High (6-8 x FLC) |
Low to Medium (2-4 x FLC) |
Low (~1/3 of DOL current) |
|
Starting Torque |
High (100%) |
Adjustable, Ramp-up |
Low (33%) |
|
Mechanical Shock |
High |
Very Low |
Medium (switching spike) |
|
Cost |
Lowest |
Higher |
Moderate |
|
Complexity |
Simple |
More Complex |
Moderate |
|
Best For |
Small motors, High inertia loads |
Smooth acceleration, Pump/Fan loads |
Medium motors, Light-load starts |
Manufacturing Industry
Drill Presses, Saws, Punch Presses, Press Brakes, etc.
Typical motor power: 3-15 kW
Material Processing Industry
Crushers, Shredders, Hammer Mills, Chippers, etc.
Typical motor power: 7.5-22 kW
Agriculture Industry
Grain Augers, Feed Mixers, Irrigation Pumps, etc.
Typical motor power: 2.2-11 kW
HVAC system Industry
Small Exhaust Fans, Boiler Feed Pumps, etc.
Typical motor power: 1.5-7.5 kW
Water Treatment Industry
Sludge Collectors, Bar Screens, Small Transfer Pumps, etc.
Typical motor power: 4-15 kW
Construction Industry
Concrete Mixers, Compactors, Small Cranes, etc.
Typical motor power: 5.5-18 kW
Request a Free Tailored Quote
Quick response: share your needs with us please, we'll contact your in very short time.
CUSTOMIZED DISPLAY
Customized Pumping Solution For Your ProjectNot Your Average Manufacturer
We tailor solutions to your specific needs based on flow rate, head, and site conditions.
Not sure what you need? Our experts team will help you find the right products.
Bespoke Design
Engineered to your project's needs.
Flexible Configuration
Choice of materials, pumps, and control system.
Product Production Cycle Management
Optimize production processes and shorten production cycles
Strong Delivery Capabilities
Complete logistics and supply chain, with delivery as fast as 15 business days.
End-to-End Service
From design to after-sales support.
