Advertisement
Quick Links
s
DOL Starter
3TW7291-1A
For dependable service, it is of utmost
importance that instructions given below are
followed for selection, inspection, installation,
commissioning, operation and maintenance.
Raja
DOL Starter (Self reset)
+
Selection of Starter
• Refer Table A for recommended selection of 3TW72 starters.
Table A: kW/HP Rating, Contactor MLFB's, 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.
3
Fig. 1: DOL Starter
10
11
5
1
12
6
2
3
4
Fig. 2: Starter Inside View
Installation, Operation & Maintenance
Instructions
Please read and understand these instructions before
installating, operating, or maintaining the equipment. Keep for
future reference
Danger
Hazardous voltage can cause death or serious injury. Disconnect
power before working on equipment.
Warning
Automatic Motor Restart.
Can cause death, serious injury or property damage.
Do not use automatic reset mode when unexpected automatic
restart of the motor can cause injury to persons or damage to
equipment.
Reliable functioning of the equipment is only ensured with
certified components. Commissioning and maintenance by
qualified personnel only.
NOTICE
This product has been designed for environment A. Use of this product
in environment B may cause unwanted electromagnetic disturbances in
which case the user may require to take adequate mitigation measures.
IS/IEC 60947-4-1
1. 'ON' push buttons (green)
4
2. 'OFF' push button (red)
5
3. Cover fixing (Instrument Head) screws
4. Housing
1
5. Cover
2
6. Mechanical Latch (OFF push button) to be used for
6
preventing undesired ON operation of Starter
7. Name plate
7
9
7
8
1. Contactor
2. Overload Relay
3. Relay Dial
4. Red Knob
5. Contactor Incoming Terminal Screws
6. Contactor Outgoing Terminal Screws
7. Wiring diagram Label
8. Links
9. Gasket
10. Grommet
11. Mounting Screw hole
12. Contact Carrier
Advertisement
Related Manuals for Siemens 3TW7291-1A
Summary of Contents for Siemens 3TW7291-1A
- Page 1 Installation, Operation & Maintenance Instructions DOL Starter Please read and understand these instructions before installating, operating, or maintaining the equipment. Keep for future reference 3TW7291-1A Danger Hazardous voltage can cause death or serious injury. Disconnect For dependable service, it is of utmost power before working on equipment. importance that instructions given below are Warning followed for selection, inspection, installation, Automatic Motor Restart. Can cause death, serious injury or property damage.
- Page 3 Contactor outgoing terminals Hook on relay for engagement Fig. 3: Contactor – Relay Connection Replacement of coil Table A: Motor Rating Back-up Fuse Relay 3UW51 Max. Full Load Current (Amp) At 415V Rating 3ph 50Hz Cable 3Ph, 415V, 3Ph, 415V, 1Ph, 240V, Starter Type Contactor 2P Sub- CSIR or...
- Page 4 Dimensional Drawing Raja Direct On-Line Starter (120) ∅ 21 Cable entry hole from rear (70) (41) (17) ∅ 25.5 Cable entry holes at top and bottom M4 Earthing screw at top and bottom Mounting dimensions 154 x 70 mm and hole dia 6.5 mm Disposal Siemens products are environment friendly, which PLASTICS: Segregate as per material type for recycling predominantly consist of recyclable materials. through authorized dealer. Because of the long lifetime of For disposals we recommend disassembling and separation Siemens Products the disposal guidelines may be replaced into following materials: by other national regulations when taking the product out of service. The local customer care service is available at any METALS: Segregate into Ferrous types for recycling through time to answer disposal-related questions. authorized dealer. Customer Care Toll free no. 1800 220 987 Email: ics.india@siemens.com Order No. A5E41695269000A-AC SACHIN ENTERPRISE Siemens Ltd. Product development is a continuous process. Consequently the data indicated in this Leaflet is subject to change without prior notice. For latest issue contact our sales offices.