Description
The ABB EF45-30 is a professional-grade electronic overload relay engineered for reliable motor protection in commercial and industrial HVAC applications. Designed for direct mounting to a compatible contactor, this relay delivers precise, adjustable overload protection across a wide current range.
Current Range & Trip Class
- Adjustable current range: 9.0–30.0 Amps
- Selectable trip class: 10E, 20E, or 30E — adaptable to a variety of motor load profiles
- Electronic sensing provides accurate and repeatable overload detection
Reset Options
- Selectable Automatic or Manual Reset modes for maximum operational flexibility
- Manual reset ensures the fault condition is acknowledged before restarting
- Automatic reset supports applications where remote or unattended restart is required
Mounting & Terminals
- Designed for direct mounting to ABB contactor — no additional adapter required
- Screw terminals provide secure, vibration-resistant wiring connections
- Compact form factor integrates cleanly into motor control centers and control panels
Applications
- Commercial HVAC motor protection (fans, pumps, compressors)
- Industrial motor starters and control panels
- Any application requiring reliable, adjustable overload protection with direct contactor mounting
The ABB EF45-30 combines electronic precision with flexible configuration, making it an ideal choice for HVAC technicians and electrical contractors who demand dependable motor protection with straightforward installation.
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