Motor starting duty and protection profile
The 3RK4353-3JR58-0BA0: The Class 10 bimetal overload relay trips within 10 seconds at 600% of the set current, which protects standard squirrel-cage motors during stall or jam conditions without nuisance trips on normal acceleration. The electromechanical switching contact handles the inrush, and the integrated short-circuit protection via circuit-breakers means the starter coordinates with an upstream breaker for Type 2 coordination — the starter survives a fault without welding its contacts.
Panel fit and environmental limits
The IP55 enclosure means it handles dust and water jets — suitable for washdown areas in food processing or outdoor installations under a canopy, but not submersion.
Supply voltage and operating frequency
The operating voltage range is 340–440 V AC, with the control supply rated 184–253 V at 50 Hz and 196–253 V at 60 Hz. Maximum operating frequency is 80 operations per hour — that's the thermal limit of the bimetal element resetting between starts. For higher cycling rates, you'd need an electronic overload or a different starter design.
Sourcing and compliance posture
Substance prohibitance date is 05/01/2012, indicating RoHS compliance from that date forward. The reference code per IEC 81346-2 is Q, which classifies it as a switching device in the plant documentation system.