<p>In the realm of industrial and commercial applications, selecting the right thermal overload relay is crucial to ensure both operational efficiency and equipment protection. This particular thermal overload relay is designed with precision to cater to a range of technical requirements while maintaining robust performance.</p><p>Operating at a rated voltage of 690 VAC and a current of 0.55 A, this device is suitable for systems that demand reliability under varying conditions. It supports dual frequency operations at 50/60 Hz, making it versatile across different regions and setups. The power loss is minimal at just 1.1 W, which helps in maintaining energy efficiency.</p><p>The relay&#39;s rated impulse withstand voltage stands at an impressive 6 kV, ensuring resilience against transient over-voltages often encountered in industrial environments. With a rated insulation voltage matching its operating voltage at 690 V, it offers consistent insulation integrity.</p><p>This model features a contact configuration of 1NC+1NO (normally closed and normally open), providing flexibility in control circuit design. Its setting range between 0.55-0.74 A allows for precise adjustments tailored to specific load requirements.</p><p>Designed with Class 10 trip characteristics, the relay ensures timely response to overload conditions without unnecessary interruptions during normal operation cycles. Its degree of protection includes IP10 and IP20 ratings, safeguarding against solid objects larger than 12 mm while offering basic protection from hands or fingers touching hazardous parts.</p><p>The direct mounting type simplifies installation processes by eliminating additional hardware needs while saving valuable panel space with its compact dimensions: width of 45 mm, height of 88.3 mm, and depth of 70.5 mm.</p><p>Operational temperatures ranging from -25 to 60 degrees Celsius ensure reliable function even in extreme weather conditions typical within Australian landscapes or indoor factory settings; storage temperatures extend further from -50 to 80 degrees Celsius for added versatility during transportation or downtime periods.</p><p>Compatibility with AF09-AF38 models expands its application scope across various motor starters or similar devices requiring effective thermal management solutions backed by compliance with international standards such as IEC/EN series (60947-1,-4-1,-5-1) alongside UL certifications ensuring global acceptance including adherence towards IEC60335-2-40 A2L guidelines specifically beneficial when dealing within HVAC sectors utilizing natural refrigerants like R32/R290 etc., enhancing safety margins significantly!</p><p>For short circuit protective measures up-to-date specifications recommend using fuses type gG rated up-to four amperes guaranteeing optimal coordination between components thereby extending lifespan considerably whilst minimizing downtimes caused due unexpected failures typically associated poorly matched device combinations seen elsewhere across industry spectrum today!</p><p>Lastly equipped automatic reset functionality adds another layer convenience allowing seamless recovery post-fault detection reducing manual intervention thus optimizing workflow efficiencies overall!</p>