We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
ABB ef45-45 electronic overload relay 15a - 45a
MPN: 1SAX221001R1102
Alt. SKU: EF45-45
Special Price
£170.63
£142.19
Regular Price
£262.51
Why Choose the EF45-45 [1SAX221001R1102]
The EF45-45 is a self-powered electronic overload relay that requires no external supply, providing dependable and rapid motor protection 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 features include a broad current setting range, precise trip accuracy, and a wide operating temperature tolerance. Users can select trip classes 10E, 20E, or 30E to suit specific motor protection requirements. Additional functionalities comprise temperature compensation, a normally closed trip contact, a 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 as accessories. The EF19 and EF45 series carry ATEX certification for units manufactured from week 42, 2014, and IECEx certification from week 15, 2017, ensuring suitability for hazardous environments.
Technical Specification
- Function: Self-supplied electronic overload relay for motor protection against overload and phase failure.
- Setting Range: 15 to 45 A.
- Rated Operational Voltage: 690 V AC (Main Circuit), 600 V AC/DC (Auxiliary Circuit).
- Contact Configuration: 3 poles protected; 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
- Insulation and Impulse Withstand Voltage: Rated insulation voltage 690 V; rated impulse withstand voltage 6 kV (main and auxiliary circuits).
- Degree of Protection: IP20.
- Terminal Types and Sizes: Flexible and rigid cables; main circuit 2.5 to 16 mm², auxiliary circuit 0.75 to 4 mm².
- Tightening Torque: Auxiliary circuit 0.8–1.2 N·m; main circuit 2.3–2.6 N·m.
- Mounting Compatibility: Suitable for AF26, AF30, AF38 contactors.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the EF45-45 overload relay?
The EF45-45 is a self-supplied electronic overload relay designed to protect motors against overload and phase failure.
What is the setting range for the EF45-45?
The setting range for the EF45-45 is 15 to 45 A.
What is the rated operational voltage for the EF45-45?
The rated operational voltage is 690 V AC for the main circuit and 600 V AC/DC for the auxiliary circuit.
What types of cables can be used with the EF45-45?
The EF45-45 can accommodate flexible and rigid cables; main circuit cables can range from 2.5 to 16 mm², and auxiliary circuit cables from 0.75 to 4 mm².
Is the EF45-45 compatible with specific contactors?
Yes, the EF45-45 is suitable for AF26, AF30, and AF38 contactors.
What is the degree of protection for the EF45-45?
The degree of protection for the EF45-45 is IP20.
What certifications does the EF45-45 have?
The EF45-45 has ATEX and IECEx certification for products produced from specific weeks in 2014 and 2017 respectively. See the manufacturer's data sheet for standards and approvals.
| Manufacturer Part Number | 1SAX221001R1102 |
|---|---|
| Amp Range | 15A - 45A |
| Manufacturer | ABB |
| Alternative Product SKU | EF45-45 |
| Barcode | 4013614403972 |
| Product Lead Time | Please contact us for a delivery time |
Write Your Own Review
