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ABB ef460-50to0 electronic overload relay 150a - 500a
MPN: 1SAX721001R1101
Alt. SKU: EF460-500
Special Price
£623.47
£519.56
Regular Price
£959.20
Why Choose the EF460-500 [1SAX721001R1101]
The EF460-500 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 fully compatible with standard motor control applications. Key technical advantages include a broad current setting range, precise trip accuracy, and a wide operating temperature tolerance. Users can select trip classes (10E, 20E, 30E) to match specific motor protection requirements. Additional features include temperature compensation, normally closed trip and normally open signal contacts, selectable automatic or manual reset, a trip-free mechanism, STOP and test functions, and clear trip indication. The EF460-500 carries ATEX certification for units manufactured from week 42, 2014, and IECEx certification from week 15, 2017, ensuring suitability for hazardous area installations.
Technical Specification
- Function: Self-supplied electronic overload relay for motor protection against overload and phase failure.
- Setting Range: 150 to 500 A.
- Rated Operational Voltage: Main circuit 1000 V AC, auxiliary circuit 600 V AC/DC.
- Contact Configuration: 3-pole with 1 NC trip contact and 1 NO signal contact.
- Rated Insulation Voltage (Ui): 1000 V.
- Rated Impulse Withstand Voltage (Uimp): Main circuit 8 kV, auxiliary circuit 6 kV.
- Degree of Protection: Housing IP20, main circuit terminals IP00.
- Terminal Type and Size: Flexible and rigid cables from 0.75 to 4 mm² with ferrules supported.
- Mounting Positions: Suitable for mounting positions 1 to 6.
- Standards Compliance: IEC/EN 60947 series and UL 60947 series certified.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the EF460-500 overload relay?
The EF460-500 is a self-supplied electronic overload relay designed for motor protection against overload and phase failure.
What is the setting range for the EF460-500?
The setting range for the EF460-500 is from 150 to 500 A.
What types of cables can be used with the EF460-500?
The relay supports flexible and rigid cables from 0.75 to 4 mm² with ferrules.
What is the degree of protection for the EF460-500?
The housing has an IP20 rating, while the main circuit terminals have an IP00 rating.
Can the EF460-500 be mounted in different positions?
Yes, the EF460-500 is suitable for mounting positions 1 to 6.
What certifications does the EF460-500 have?
The EF460-500 has ATEX and IECEx certifications, valid for products produced from specific weeks in 2014 and 2017 respectively.
What standards does the EF460-500 comply with?
See the manufacturer's data sheet for standards and approvals.
| Manufacturer Part Number | 1SAX721001R1101 |
|---|---|
| Amp Range | 150A - 500A |
| HS Code | 85364900 |
| Country of Manufacture | China |
| Manufacturer | ABB |
| Alternative Product SKU | EF460-500 |
| Barcode | 4013614487415 |
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