Selection of Starter Refer Table A for recommended selection of 3TW72 starters. Table A: kW/HP Rating, thermal overload relay range & fuse rating, Coil Voltage, Maximum full load current for different types of motors. Recommended Submersible pump rating 5.5kW/7.5HP Max. Installation, Operation & Maintenance Instructions A DOL starter (also known as a direct on line starter or across the line starter) is a method of starting a 3 phase induction motor. In a DOL Starter, an induction motor is connected directly across its 3-phase supply, and the DOL starter applies the full line voltage to the motor terminals.
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Our new series of DOL and ASD starters complies to latest standard IS/IEC 60947-4-1 Warning: Hazardous Voltage can cause Electric Shock and burns. Disconnect Power before proceeding with any work on this equipment A direct-on-line motor starter with ingress protection to IP66. Two-tone plastic enclosure with ABS lid and base. Trip class 10 requirements IEC 947-4-1 1.05 x FLC No tripping 1.2 x FLC Trip within 2 hours 1.5 x FLC Trip within 4 minutes 7.2 x FLC Trip between 4s and 10s NOTE: FLC = Full load current 1TVS013114P0300 Rev1 01/1 DOL Starter DLA direct-on- line starters are mounted on a base suitable for fitting of a manual motor starter type MS 325, for overload and short-circuit protection. Please refer to table on page 5/2 for selection of the required type of coordination. The advantages in utilization are as follow: starters clip onto 35 x 15 mm mounting rail (EN 50022), The Direct on Line motor starter (DOL) is designed to switch a single or three phase induction motor at rated voltage. It comprises of an isolator, steel enclosure, a contactor start contact, link wires and stop / start buttons. The Thermal overload is supplied as a separate item. Wiring of the Direct-On-Line (DOL) Motor Starter with Isolator
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The Direct on Line motor starter (DOL) is designed to switch a single or three phase induction motor at rated voltage. It comprises an enclosure in steel or plastic, a contactor, start contact, link wires and stop / start buttons. The Thermal overload is supplied as a : separate item. 4 DOL Starter - IDL Series Fast and easy installation of cable glands NEMA 4X / IP66 Degree of protection (insulated of energized parts). Protected against dust and water jetting. Excellent insulating properties. Robust and high impact resistance. UV protection for outdoor use. NEMA 4X IP66 Thermal overload relay reset button integrated Page 1 DOL Starter Plastic Enclosure to IP65 IEC947-4-1 Issue 1 Installation Instructions Installation Remove cover by releasing 2 off screws with a screwdriver. Wiring to overload: Connect leads provided from - terminal 14 to terminal 95 and terminal A2 to terminal 96 Check operating coil voltage and frequency Remove appropriate top/bottom knockouts. A combination starter performs the following functions: • Circuit isolation • Motor "ON - OFF" control" • Overload protection Direct online starter "MA" DOL consists of MA range contactors and TA25 overload relays assembled in sheet steel double color powder coated enclosure. These starters protect the motor against overload and
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Direct online starter is a method of starting an induction motor. The stator of the motor receives the full supply voltage in the DOL starter. Therefore, a Direct Online Starter is suitable for starting the small rating three-phase induction motors. We will also discuss the DOL power circuit diagram. Direct-On-Line Starters Product Selection Guide Technical Datasheet AC3 Rating at 400V Description Product Amps kW HP 10 4 6 Start-Stop P/B DOL10* 18 7.5 11.5 Start-Stop P/B DOL18* 10 4 6 Hand-Off-Auto DOLH10* 18 7.5 11.5 Hand-Off-Auto DOLH18* 22 11 16 Start-Stop P/B DOL22* Starter Note: * Indicates control/coil voltage Starters are wired to.
Principle of Direct On Line Starter (DOL) To start, the contactor is closed, applying full line voltage to the motor windings. The motor will draw a very high inrush current for a very short time, the magnetic field in the iron, and then the current will be limited to the Locked Rotor Current of the motor. What is Direct Online (DOL) Starter? DOL Starter (Direct Online Starter) is also knows as "across the line starter". DOL starter is a device consist of main contactor, protective devices and overload relay which is used for motor starting operations. It is used for low rating usually below 5HP motors.
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DOL - Direct Online Starter: A D irect On Line (DOL) or across the line starter is an electrical device used to apply a full three-phase line voltage to the electrical motor terminals. In order to avoid direct switching, DOL starters are implemented. During normal condition, it acts as a switch. A drive can control the speed any time during the process. Conveyors. It is better to use a soft starter when you replace DOL starters to prevent material spillage or damage during starting and stopping on a conveyor. The soft starter smoothly starts and stops the conveyor without mechanical stress. Pumps.
