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Siemens 3UA55 Thermal Overload Relay
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3UA/UC Thermal Overload Relay
The 3UA / 3UC thermal overload relays 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.
These relays are widely used in electrical industry for reliable overload protection.
3UA5/6 are 3 pole adjustable bi-metal overload relays mainly suitable for normal starting applications. They provide accurate and reliable protection to motors against overload as per CLASS 10A.
3UC overload relay: 3UC5/6 are 3 pole adjustable, saturable CT operated bi-metal overload relays mainly suitable for heavy starting applications (They provide accurate and reliable protection to motors against overload as per CLASS 30.