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ABB ef19-18.9 electronic overload relay 5.7a - 18.9a
MPN: 1SAX121001R1105
Alt. SKU: EF19-18.9
Special Price
£98.92
£82.43
Regular Price
£152.17
Why Choose the EF19-18.9 [1SAX121001R1105]
The EF19-18.9 is a self-powered electronic overload relay, requiring no external supply. It provides precise and rapid protection for motors against overload and phase failure. Designed for straightforward installation and operation similar to thermal overload relays, it is compatible with standard motor control applications. Key technical features include a wide current setting range, high accuracy, extended operating temperature tolerance, and selectable trip classes (10E, 20E, 30E). Additional functionalities comprise temperature compensation, normally closed trip contact, normally open signal contact, selectable automatic or manual reset, a trip-free mechanism, STOP and test functions, and clear trip indication. The relay mounts directly onto contactors, with single mounting kits available separately. The EF19 and EF45 series carry ATEX certification (applicable from week 42, 2014 production) and IECEx certification (applicable from week 15, 2017 production), ensuring suitability for hazardous environments.
Technical Specification
- Function: Self-supplied electronic overload relay for motor protection against overload and phase failure.
- Rated Operational Current: 18.9 A.
- Rated Operational Voltage: Auxiliary circuit 600 V AC/DC, main circuit 690 V AC.
- Contact Configuration: 3 poles with 1 NC (trip) and 1 NO (signal) auxiliary contacts.
- Rated Insulation Voltage (Ui): 690 V.
- Rated Impulse Withstand Voltage (Uimp): 6 kV for both auxiliary and main circuits.
- Protection Rating: IP20.
- Terminal Type and Size Range: Flexible and rigid cables, 0.75 to 4 mm² with ferrules.
- Mechanical Features: Mounts directly on contactors (AF09, AF12, AF16, AF26), trip-free mechanism, selectable reset modes.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the EF19-18.9 overload relay?
The EF19-18.9 is a self-supplied electronic overload relay designed to protect motors against overload and phase failure.
What is the rated operational current for the EF19-18.9?
The rated operational current is 18.9 A.
What types of cables can be used with the EF19-18.9?
The relay can accommodate flexible and rigid cables ranging from 0.75 to 4 mm² with ferrules.
How is the EF19-18.9 mounted?
The EF19-18.9 mounts directly on contactors such as AF09, AF12, AF16, and AF26.
What are the selectable trip classes for the EF19-18.9?
The relay allows selection of trip classes 10E, 20E, and 30E.
Does the EF19-18.9 have any certifications?
Yes, the EF19-18.9 has ATEX and IECEx certification for specific production weeks. See the manufacturer's data sheet for standards and approvals.
What is the protection rating of the EF19-18.9?
The protection rating is IP20.
| Manufacturer Part Number | 1SAX121001R1105 |
|---|---|
| Amp Range | 5.7A - 18.9A |
| HS Code | 85364900 |
| Country of Manufacture | China |
| Manufacturer | ABB |
| Alternative Product SKU | EF19-18.9 |
| Barcode | 4013614404023 |
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