1. DESCRIPTION The thermal overload relays RTE EKF are designed to protect three-phase squirrel- cage asynchronous motors against current overloads of unacceptable duration, including those resulting from loss of one of the phases. The relays are used as components in motor control circuits together with contactors KME.
TRIPPING CHARACTERISTICS Tripping curves 1. symmetrical three-phase mode from the cold state 2. symmetrical two-phase mode from the cold state 3. symmetrical three-phase mode after prolonged rated current flow (hot state). Class 10A Current setting ratio...
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4 INSTALLATION AND OPERATION Thermal overload relay shall be installed and connected by qualified electrical personnel. To change the trip setpoint, open the transparent cover on the relay housing. Set the required current setpoint for relay tripping by turning the grey disc located on the left, matching the current value (A) on the scale with the marking on the housing.
5 DELIVERY SCOPE Thermal overload relays are supplied in an individual package. For all available documentation, scan the QR-code on the insert or on the inside of the package. 6 SAFETY REQUIREMENTS Do not operate the thermal overload relay RTE with visual mechanical damage. By protection method against electric shock, thermal overload relays belong to protection class «0»...
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Importer and EKF trademark service representative: EKF ELECTRICAL SOLUTION – FZCO, Dubai Silicon Oasis, DDP, Building A2, Dubai, United Arab Emirates. Importer and EKF trademark service representative on the territory of the Russian Federation: OOO «Electroresheniya», Otradnaya st., 2b bld. 9, 5th floor, 127273, Moscow, Russia.
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11 CERTIFICATE OF ACCEPTANCE The thermal overload relay RTE EKF complies with IEC 60947-4-1:2018 and has been approved for operation. Date of manufacture: for information, refer to the product package. Quality control stamp www.ekfgroup.com...
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