Siemens Thermal Overload Relay 3UA are suitable for customers from all industries, who want guaranteed optimum inverse time delayed protection of their electrical loads. The relays meet the requirements of IS/IEC 60947-4-1. They also offer protection against single phasing and unbalanced currents.
- 3UA5: 0.1 to 120A, (Class 10A, without CT)
- 3UA6: 85 to 630A, (Class 10A, CT operated)