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ABB ef19-6.3 electronic overload relay 1.9a – 6.3a
ABB EF19-6.3 electronic overload relay with adjustable 1.9-6.3 A setting range, selectable trip classes and integrated phase failure protection for industrial motor control applications.
£84.08
Why Choose the ABB EF19-6.3 Electronic Overload Relay?
The ABB EF19-6.3 Electronic Overload Relay (Part Number: 1SAX121001R1104) is a high-performance electronic motor overload protection relay engineered to provide accurate protection for three-phase motors against overload, phase failure and overheating. As part of the reliable ABB EF19 electronic overload relay series, it delivers dependable motor protection while helping improve the reliability and lifespan of industrial motor control systems.
Using advanced electronic sensing technology, the EF19-6.3 provides consistent protection regardless of ambient temperature. The relay is self-powered, eliminating the need for an external control supply, and features selectable trip classes to suit a wide range of motor starting characteristics. It mounts directly onto compatible ABB AF contactors for quick and efficient installation.
With an adjustable current setting range of 1.9-6.3 A, integrated auxiliary contacts and robust industrial construction, the EF19-6.3 is an excellent choice for motor starters used in conveyors, pumps, compressors, HVAC systems and automated production equipment.
Key Advantages
- Accurate electronic overload protection for three-phase motors.
- Adjustable current range of 1.9-6.3 A for flexible motor protection.
- Selectable Trip Class 10E, 20E and 30E.
- Protects motors against overload and phase failure.
- Self-powered design requiring no external power supply.
- Direct mounting onto compatible ABB AF contactors for rapid installation.
Key Features
- ABB EF19 electronic overload relay series.
- Current adjustment: 1.9-6.3 A.
- Rated operational current: 6.3 A.
- Selectable Trip Classes 10E / 20E / 30E.
- 1 NO + 1 NC auxiliary contacts.
- Automatic or manual reset selection.
- Integrated STOP, TEST and trip indication.
- Direct contactor mounting with screw terminals.
Reliable Motor Protection for Industrial Applications
Electronic overload relays continuously monitor motor current to detect overload and phase loss conditions before damage can occur. This helps minimise downtime, extend motor life and improve the reliability of industrial equipment.
The ABB EF19 series combines high measurement accuracy, a wide operating temperature range and adjustable trip characteristics, making it an ideal solution for machine builders, panel manufacturers and industrial maintenance engineers.
Typical Applications
- Industrial motor starters and control panels.
- Conveyors and material handling systems.
- Pumps and compressors.
- HVAC and ventilation equipment.
- Packaging and manufacturing machinery.
- Industrial automation and process control systems.
Technical Specifications
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| Compatible With | AF09–AF38 | |
|---|---|---|
| Mounting Type | Direct mount on contactor | |
| Device Type | Electronic Overload Relay | |
| Current Range | 1.9–6.3 A | |
| Trip Class | Adjustable (5–30) | |
| Reset Type | Manual / Automatic | |
| Current | 6.3 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 3-pole | |
| Series | EF19 | |
| Part number | 1SAX121001R1104 | |
| Product type | Electronic overload relay | |
| Current setting range | 1.9–6.3 A | |
| Rated operational current | 6.3 A | |
| Trip classes | 10E / 20E / 30E selectable | |
| Rated operational voltage | Main circuit 690 V AC | |
| Auxiliary circuit voltage | 600 V AC/DC | |
| Number of poles | 3 | |
| Auxiliary contacts | 1 NC + 1 NO | |
| Degree of protection | IP20 | |
| Mounting type | Direct mounting to contactor | |
| Suitable for | ABB AF09, AF12, AF16, AF26 contactors | |
| Frequency | 50 / 60 Hz | |
| Operating temperature | approx. -25 °C to +70 °C | |
| Standards | IEC/EN 60947-4-1 | |
| Dimensions (W × H × D) | approx. 44.4 × 85 × 59.3 mm | |
| Weight | approx. 0.18 kg |
Frequently Asked Questions
What is the ABB EF19-6.3 used for?
The EF19-6.3 protects three-phase electric motors against overload, phase failure and overheating in industrial motor control applications.
What current range does this overload relay support?
The relay features an adjustable protection range from 1.9 A to 6.3 A.
Does the EF19-6.3 require an external power supply?
No. The relay is self-powered and operates without an additional external control supply.
Which trip classes are available?
The relay provides selectable Trip Class 10E, 20E and 30E to suit different motor starting requirements.
Which contactors is this relay compatible with?
The EF19-6.3 is designed for direct mounting onto compatible ABB AF09, AF12, AF16 and AF26 contactors.
Trusted by Industrial Control Professionals
ABB EF19 electronic overload relays are trusted by OEM manufacturers, panel builders and maintenance engineers worldwide for delivering precise motor protection, dependable operation and long-term reliability.
