The following topics for the Standard for Low-Voltage Switchgear and Controlgear - Part 4-1A: Contactors and Motor-Starters - Electromechanical Contactors and Motor-Starters, UL 60947-4-1A, are being recirculated:
1. Harmonization of IEC utilization categories with the UL ratings for control of external loads.
2. Deletion of Table 5.5DV.1 and associated references to standard VA ratings based on size of contactor.
6. Deletion of Clause 8.1DV.2.1 requiring a stop on an instantaneous trip circuit breaker.
11. Deletion of Clause 9.3.3.2.2DV.1 requiring calibration testing of devices with overload relay to be tested with largest wire that will fit into terminal.
14. Deletion of Clause 9.3.3.2.2DV.4 regarding selection of samples for calibration testing.