ABB 1SAX121001R1105 EF19-18.9 Electronic Overload Relay 5.7-18.9A 3P

The ABB EF19-18.9 electronic overload relay (SKU: 1SAX121001R1105) delivers precise motor protection across a wide current range of 5.7 to 18.9 A in a compact 3-pole configuration. Designed for industrial automation and control panel applications, the EF19-18.9 offers reliable trip performance compliant with IEC/EN 60947 standards, making it the preferred choice for engineers and procurement professionals specifying robust motor protection in demanding environments.

Technical Specifications

Certifications & Standards

• ATEX: Certified for use in explosive atmospheres
• IECEx: International certification for equipment in explosive atmospheres
• IEC 60947-1: General rules for low-voltage switchgear and controlgear
• EN 60947-1: European harmonized standard for low-voltage switchgear and controlgear
• IEC/EN 60947: Comprehensive low-voltage switchgear and controlgear series
• IEC 60068-2: Environmental testing for electronic components
• EN 60947: European standard for low-voltage switchgear
• EN 60947-4: Standard for contactors and motor starters
• EN 60947-5: Standard for control circuit devices and switching elements
• EN 45555: General methods for assessing the energy efficiency of networked standby equipment
• UL 2799: UL certification for electrical systems
• CSA: Canadian Standards Association approval
• RoHS: Restriction of Hazardous Substances compliant
• REACH: Compliant with EU chemical safety regulation
• WEEE: Waste Electrical and Electronic Equipment directive compliant
• CCC: China Compulsory Certification
• CE: European Conformity marking
• UKCA: UK Conformity Assessed marking for Great Britain market
• EAC: Eurasian Conformity mark for EAEU markets

Applications & Use Cases

The EF19-18.9 electronic overload relay is designed for motor protection in industrial automation systems, control panels, and machinery. Its adjustable current range of 5.7–18.9 A makes it suitable for protecting three-phase motors in HVAC systems, conveyors, pumps, compressors, and general-purpose industrial drives. The relay integrates seamlessly with ABB EF-series contactors and motor starters, enabling efficient panel assembly and system coordination. With ATEX and IECEx certifications, it is also approved for deployment in hazardous classified areas.