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ABB ef45-30 electronic overload relay 9a - 30a
MPN: 1SAX221001R1101
Alt. SKU: EF45-30
Special Price
£141.29
£117.74
Regular Price
£217.37
Why Choose the EF45-30 [1SAX221001R1101]
The EF45-30 is a self-powered electronic overload relay requiring no external supply, designed to provide rapid and reliable motor protection against overload and phase failure. It combines the simplicity of a thermal overload relay with enhanced precision, offering a broad current setting range, high accuracy, and suitability for elevated operating temperatures. The relay allows selection of trip classes (10E, 20E, 30E) to match specific motor protection requirements. Key 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 EF45-30 mounts directly onto contactors, with single mounting kits available as accessories. Both the EF19 and EF45 series carry ATEX and IECEx certifications, applicable to units manufactured from week 42, 2014 and week 15, 2017 respectively.
Technical Specification
- Function: Self-supplied electronic overload relay with fast, reliable motor protection against overload and phase failure.
- Setting Range: 9.0 to 30 A adjustable current.
- Rated Operational Voltage: Auxiliary circuit up to 600 V AC/DC; main circuit up to 690 V AC.
- Contact Configuration: 3 poles, with 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
- Insulation & Impulse Voltage: Rated insulation voltage 690 V; impulse withstand voltage 6 kV (auxiliary and main circuits).
- Degree of Protection: IP20 suitable for industrial panel environments.
- Terminal Capacity: Main circuit: 2.5 to 16 mm² (flexible and rigid); auxiliary circuit: 0.75 to 4 mm².
- Tightening Torque: 0.8 to 1.2 N·m (auxiliary); 2.3 to 2.6 N·m (main circuit).
- Compliance: Meets IEC/EN 60947 series and UL standards for industrial use.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the EF45-30 overload relay?
The EF45-30 is a self-supplied electronic overload relay that provides fast and reliable protection for motors against overload and phase failure.
What is the adjustable current setting range for the EF45-30?
The adjustable current setting range is from 9.0 to 30 A.
What is the degree of protection for the EF45-30?
The EF45-30 has a degree of protection rated at IP20, suitable for industrial panel environments.
What is the terminal capacity for the main and auxiliary circuits?
The main circuit terminal capacity is 2.5 to 16 mm², while the auxiliary circuit capacity is 0.75 to 4 mm².
Is the EF45-30 compatible with standard motor applications?
Yes, the EF45-30 is compatible with standard motor applications and functions similarly to a thermal overload relay.
What certifications does the EF45-30 have?
The EF45-30 has ATEX and IECEx certification for products produced after specific weeks in 2014 and 2017, respectively.
What standards does the EF45-30 comply with?
See the manufacturer's data sheet for standards and approvals.
| Manufacturer Part Number | 1SAX221001R1101 |
|---|---|
| Amp Range | 9A - 30A |
| Manufacturer | ABB |
| Alternative Product SKU | EF45-30 |
| Barcode | 4013614403965 |
| Product Lead Time | Please contact us for a delivery time |
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