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Thermal overload relays in thermal version (3UA) provide in the main circuit current-dependent overload protection of motor loads (e.g. motors) as well as other switching and protective devices in the load feeder. These relays are widely used in electrical industry for reliable overload protection.
• Variants reduction due to setting range of 1:4
• Cost reduction due to less power loss
• Solutions for standard/heavy load starting: CLASS 10, 30