Why Choose the ABB EF146-150 Electronic Overload Relay?
The ABB 1SAX351001R1101 EF146-150 is a high-performance electronic overload relay designed to provide accurate and reliable protection for industrial motors against overload and phase failure conditions. As part of the advanced ABB EF146 electronic overload relay series, it delivers precise motor protection, adjustable trip characteristics and direct mounting compatibility with ABB contactors.
This self-powered electronic overload relay eliminates the need for an additional external supply while providing fast and dependable motor protection. The EF146 series combines the simplicity of traditional overload protection with advanced electronic monitoring, temperature compensation, selectable trip classes and flexible reset options for demanding industrial applications.
With an adjustable current setting range of 54–150 A and a rated operational current of 150 A, the ABB EF146-150 is suitable for protecting larger industrial motors in combination with compatible ABB contactors. Its robust construction and advanced protection functions make it ideal for heavy-duty motor starter assemblies.
Key Advantages
- Advanced electronic overload protection for industrial motors.
- 54–150 A adjustable current range for flexible motor protection.
- Self-powered design removes the requirement for an external control supply.
- Selectable 10E, 20E and 30E trip classes for application flexibility.
- Protection against motor overload and phase failure.
- Automatic or manual reset selection for improved maintenance flexibility.
Key Features
- ABB EF146 electronic overload relay series.
- EF146-150 model.
- 54–150 A adjustable overload setting range.
- 150 A rated operational current.
- 3-pole motor protection design.
- 1 normally open and 1 normally closed auxiliary contact.
- Selectable trip class 10E, 20E and 30E.
- Temperature compensation for accurate operation.
- Integrated STOP and TEST functions.
- Trip indication and trip-free mechanism.
- Direct mounting onto compatible ABB contactors.
Reliable Motor Protection for Industrial Systems
Electronic overload relays such as the ABB EF146-150 continuously monitor motor current and disconnect the motor starter when abnormal overload or phase failure conditions occur. This helps prevent motor damage, improve equipment reliability and reduce unplanned downtime.
The ABB EF146 series is designed for industrial motor starters requiring accurate protection, wide adjustment ranges and dependable operation in demanding environments. Its selectable trip classes, diagnostic functions and direct contactor mounting provide a flexible solution for modern automation systems.
Typical Applications
- Heavy-duty industrial motor control panels.
- Large machinery and production equipment.
- Pumps, fans and process systems.
- Manufacturing and automation systems.
- OEM motor starter assemblies.
- Industrial electrical distribution equipment.
