<p>This Thermal Overload Relay is designed for those seeking reliable protection in industrial and commercial applications. It operates efficiently with a rated voltage of 690 VAC and is suitable for use within systems requiring a rated current of 0.55 A. The relay supports both 50 Hz and 60 Hz frequencies, making it versatile across different regions.</p><p>Engineered to minimize energy waste, the device has a power loss of just 1.8 W. Its robust construction includes a rated impulse withstand voltage of 6 kV and a rated insulation voltage also at 690 V, ensuring durability under demanding conditions.</p><p>The relay features a contact configuration of 1 normally closed (NC) and 1 normally open (NO), providing flexibility in control circuits. With an adjustable setting range from 16 to 20 A, it offers adaptability to various load requirements. Classified as Trip Class 10, it provides prompt response to overloads, safeguarding your equipment effectively.</p><p>Designed for direct mounting, this compact relay measures just 45 mm in width, with heights and depths at 88.3 mm and 70.5 mm respectively—ideal for space-constrained installations.</p><p>It boasts an operational temperature range from -25&#176;C to +60&#176;C while accommodating storage temperatures between -50&#176;C to +80&#176;C, ensuring resilience across diverse environments.</p><p>Compliant with international standards such as IEC/EN 60947-1, IEC/EN 60947-4-1, IEC/EN 60947-5-1 along with UL certifications; this product guarantees quality assurance recognized globally.</p><p>The degree of protection offered by this device includes IP10/IP20 ratings alongside an IP3 degree of pollution rating—ensuring safety against dust ingress and environmental contaminants typically found in industrial settings.</p><p>For added peace-of-mind during installation or maintenance activities; electrical connections are secured via screws which provide stable connectivity over time without risk from vibration-induced loosening common within high-power setups like those using AF09-AF38 devices mentioned here too!</p><p>Short circuit protective measures include compatibility up-to-fuse types gG rated at maximum currents reaching sixty-three amperes further enhancing its reliability factor significantly when compared against alternative solutions available today on marketplaces worldwide alike!</p><p>Lastly but certainly not least: automatic reset functionality ensures minimal downtime post-trip events thus maximizing productivity levels throughout operational cycles continuously day-after-day without fail whatsoever!</p>