Overload Relays 3RU1 Thermal Overload Relays 3RU11 for standard applications Technical specifications Footnotes see page 11. 10 Siemens · 2009 Type Size Width 3RU11 16 3RU11 26 3RU11 36 3RU11 46 S00 S0 S2 S3 45 mm 45 mm 55 mm 70 mm General data Trips in the event of Overload and phase failure Trip class acc.
to IEC 60947-4-1 CLASS 10 Phase failure sensitivity Yes Overload warning No Reset and recovery • Reset options after tripping • Recovery time - For automatic RESET min - For manual RESET min - For remote RESET min Manual, automatic and remote RESET1) Depends on the strength of the tripping current and characteristic Depends on the strength of the tripping current and characteristic Depends on the strength of the tripping current and characteristic Features • Display of operating state on device • TEST function • RESET button • STOP button Yes, by means of TEST function/switch position indicator slide Yes Yes Yes Safe operation of motors with "increased safety" type of protection EC type test certificate number acc.
to directive 94/9/EC DMT 98 ATEX G 001 II (2) GD, DMT 98 ATEX G 001 N1 Ambient temperature • Storage/transport °C • Operation °C • Temperature compensation °C • Permissible rated current at - Temperature inside control cabinet 60 °C % - Temperature inside control cabinet 70 °C % -55 ... +80 -20 ... +70 Up to 60 100 (over +60 °C current reduction is not required) 87 Repeat terminals • Coil repeat terminal • Auxiliary contact repeat terminal Yes Not required Yes Not required Degree of protection acc. to IEC 60529 IP20 IP202) Touch protection acc. to IEC 61140 Finger-safe Shock resistance with sine acc.
to IEC 60068-2-27 g/ms 8/10 Electromagnetic compatibility (EMC) – Interference immunity • Conductor-related interference - Burst acc. to IEC 61000-4-4 kV (corresponds to degree of severity 3) - Surge acc. to IEC 61000-4-5 kV (corresponds to degree of severity 3) • Electrostatic discharge acc. to IEC 61000-4-2 kV (corresponds to degree of severity 3) • Field-related interference acc.
to IEC 61000-4-3 V/m (corresponds to degree of severity 3) EMC interference immunity is not relevant for thermal overload relays EMC interference immunity is not relevant for thermal overload relays EMC interference immunity is not relevant for thermal overload relays EMC interference immunity is not relevant for thermal overload relays Electromagnetic compatibility (EMC) – Emitted interference EMC interference immunity is not relevant for thermal overload relays Resistance to extreme climates – Air humidity % 100 Dimensions See dimensional drawings Installation altitude above sea level m Up to 2000; above this, please enquire Mounting position The diagrams show the permissible mounting positions for mounting onto con- tactors and stand-alone installation.
For installation in the hatched area, a setting correction of 10 % must be implemented. Stand-alone installation: Contactor + overload relay: Type of mounting Direct mounting3)/ stand-alone installation with terminal bracket4) Direct mounting/stand-alone installation with terminal bracket4)