ABB EF19-18.9 electronic overload relay with 5.7–18.9 A adjustable current range designed for reliable industrial motor overload and phase failure protection.
£151.98
The ABB 1SAX111001R1103 EF19-18.9 is a compact and reliable electronic overload relay designed to provide accurate motor protection against overload and phase failure conditions in industrial automation and motor control systems. As part of the advanced ABB EF19 electronic overload relay series, it provides precise protection, adjustable trip characteristics and direct 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 EF19 series combines easy adjustment with advanced electronic monitoring features including temperature compensation, selectable trip classes, automatic or manual reset selection, trip indication and integrated STOP and TEST functions.
With an adjustable current setting range of 5.7–18.9 A and a rated operational current of 18.9 A, the ABB EF19-18.9 is suitable for protecting small and medium industrial motors when installed directly with compatible ABB contactors.
Electronic overload relays such as the ABB EF19-18.9 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 EF19 series is designed for industrial motor starters requiring accurate protection, wide adjustment ranges and dependable operation. Its compact construction and direct contactor mounting make it suitable for modern automation and machinery applications.
| Manufacturer | ABB |
|---|---|
| Series | EF19 Electronic Overload Relays |
| Model | EF19-18.9 |
| Part number | 1SAX111001R1103 |
| Product type | Electronic overload relay |
| Rated operational current | 18.9 A |
| Current setting range | 5.7–18.9 A |
| Number of poles | 3-pole |
| Auxiliary contacts | 1 NO + 1 NC |
| Trip classes | 10E / 20E / 30E selectable |
| Main circuit voltage | Up to 690 V AC |
| Auxiliary circuit voltage | Up to 600 V AC/DC |
| Rated insulation voltage | 690 V |
| Mounting type | Direct mounting on contactor |
| Terminal type | Screw terminals |
| Protection rating | IP20 |
| Width | 44.4 mm |
| Dimensions (H × W × D) | approx. 85 × 44.4 × 59.3 mm |
| Weight | approx. 0.18 kg |
The ABB EF19-18.9 is an electronic overload relay designed to protect industrial motors against overload and phase failure conditions.
The overload relay supports an adjustable current setting range of 5.7–18.9 A.
No, the EF19-18.9 uses a self-powered design and does not require an additional external control supply.
The ABB EF19-18.9 provides selectable 10E, 20E and 30E trip classes for different motor protection requirements.
The EF19-18.9 is typically installed directly onto compatible ABB contactors within industrial motor starter assemblies.
ABB EF19 electronic overload relays are widely used by automation engineers and machine builders to provide accurate motor protection, reliable operation and flexible integration into industrial control systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...