ABB TF42-16 thermal overload relay, 10-16 A range, code TF42-16. For direct-on-line motor starter protection per IEC 60947-4-1. Class 10 tripping characteristic. Mounts directly on AF-line contactors AF9-AF38. Applications: pump, fan, compressor motor overload protection up to ~7.5 kW at 400 V AC-3. Interchange to Siemens 3RU2126-4EB0 and Schneider LRD22 in equivalent current range.