ABB EF370 Electronic Overload Relay
ABB EF370 Electronic Overload Relay Supplier,Exporter in India
ABB EF370-380 Electronic Overload Relay for Motor Protection
ABB EF370 is an electronic overload relay used for protecting high-current three-phase motors against overload and phase failure. It is mainly used in larger MCC panels, motor starters, pumps, compressors, conveyors, crushers and heavy industrial machinery.
The EF370 range is built around the EF370-380, which covers motor currents from 115 to 380 A. It is designed for use with larger ABB contactors and gives panel builders a compact motor starter arrangement without requiring a separate power supply for the overload relay.
The relay offers selectable 10E, 20E and 30E trip classes, making it suitable for motors with normal starting characteristics as well as applications with longer or heavier starting conditions.
For an ABB EF370 electronic overload relay supplier in India, EF370-380 motor protection relay, 1SAX611001R1101 supplier or ABB high-current overload relay export requirement, buyers can share the motor current, contactor model and quantity for quotation.
ABB EF370 Model
ABB EF370-380
- ABB Order Code: 1SAX611001R1101
- Adjustable current range: 115–380 A
- Rated operational current: 380 A
- Electronic motor overload protection
- Phase failure protection
- Selectable trip classes: 10E, 20E and 30E
- Manual or automatic reset
- Self-powered operation
- Suitable for larger ABB contactor combinations
EF370-380 is the main model in this family. For replacement requirements, buyers should specify the full EF370-380 model and ABB order code rather than only mentioning EF370.
Technical Specifications
- Product family: ABB EF370
- Model: EF370-380
- ABB order code: 1SAX611001R1101
- Product type: Electronic overload relay
- Adjustable current setting: 115–380 A
- Rated operational current: 380 A
- Number of poles: 3
- Main circuit voltage: Up to 1000 V AC
- Trip classes: 10E, 20E and 30E
- Motor overload protection
- Phase failure sensitivity
- Self-powered operation
- Manual/automatic reset
- TEST function
- STOP function
- Trip indication
- Auxiliary contacts: 1 NC + 1 NO
- Temperature-compensated operation
- Operating temperature: -25°C to +70°C
- Direct contactor mounting
- Separate mounting option available
- ATEX and IECEx certification available for applicable EF370 products
Features
- Wide 115–380 A motor current setting range
- Electronic protection for high-current motors
- Phase failure protection
- Selectable 10E, 20E and 30E trip classes
- No separate auxiliary supply required
- Manual or automatic reset selection
- Front TEST and STOP controls
- Clear overload trip indication
- Trip and signalling auxiliary contacts
- Temperature-compensated operation
- Direct mounting with compatible ABB contactors
- Suitable for standard and heavy motor starting applications
ABB EF370 with ABB AF Contactors
EF370-380 is designed for larger ABB contactors used in high-current motor starters.
Compatible ABB contactor combinations include models such as:
- AF210
- AF260
- AF265
- AF300
- AF305
- AF370
ABB also lists compatibility with older A210, A260 and A300 contactors.
This makes the EF370 suitable for larger MCC feeders and industrial motor starter assemblies.
When selecting a new combination, the motor full-load current and contactor model should be checked together.
ABB EF370 Trip Class 10E, 20E & 30E
One of the useful features of EF370-380 is the selectable overload trip class.
Class 10E is generally used for motors with normal starting times.
Class 20E and 30E allow more time during starting and can be used for motors with heavier loads or longer acceleration periods.
This flexibility is useful in applications such as crushers, conveyors, large pumps and process machinery where starting conditions may be more demanding.
Applications
ABB EF370 electronic overload relays are used in:
- Large MCC panels
- High-current motor starters
- Industrial pumps
- Pumping stations
- Large compressors
- Conveyor systems
- Crushers and mills
- Fans and blowers
- Material handling equipment
- Cement plants
- Steel plants
- Mining installations
- Process industries
- Water and wastewater plants
- Manufacturing machinery
- Heavy-duty OEM equipment
- Direct-on-line motor starters
- Star-delta motor starters
- Industrial motor control systems
ABB EF370 for High-Current Motor Protection
EF370 is intended for applications above the current range handled by smaller ABB electronic overload relays such as EF146 and EF205.
With a setting range of 115–380 A, one EF370-380 can cover a broad range of higher-power motor applications.
This makes it useful for panel builders, industrial maintenance companies and OEMs working with larger motor starters.
Choosing the Correct ABB EF370 Relay
For an ABB EF370 quotation, buyers should provide:
- Motor rated current
- ABB contactor model
- Required trip class, if specified
- ABB order code
- Existing overload relay model for replacement requirements
- Quantity
- Destination country
For replacement enquiries, a clear photograph of the existing overload relay and contactor can also help confirm the correct combination.
Looking for ABB EF370-380 Electronic Overload Relay?
We supply ABB EF370-380 electronic overload relays for large motor starters, MCC panels, pumps, compressors, crushers, conveyors, industrial machinery and export requirements.
For an ABB EF370-380 supplier and exporter from India, ABB 115–380 A electronic overload relay, 1SAX611001R1101 requirement or replacement EF370 motor protection relay, send the motor current, contactor model, quantity and destination country for quotation.
