Overload Relays 3RU1 Thermal Overload Relays 3RU11 for standard applications Footnotes for page 10: 1) Remote RESET in combination with the corresponding accessories. Footnotes for page 11: 1) The box terminal is removable. Rail and cable lug connections are pos- sible if the box terminal is removed. 2) Terminal compartment: degree of protection IP00. 3) The 3RU11 16 overload relay with Cage Clamp terminals can only be installed as a stand-alone installation. 2) If two different conductor cross-sections are connected to one clamping point, both cross-sections must lie in the range specified. If identical cross-sections are used, this restriction does not apply.
4) For screw and snap-on mounting TH 35 standard mounting rail; size S3 also for TH 75 standard mounting rail. For more detailed information about terminal brackets see "Accessories" --> "Technical specifications". 11 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 Main circuit Rated insulation voltage Ui V (degree of pollution 3) 690 1000 Rated impulse withstand voltage Uimp kV 6 8 Rated operational voltage Ue V 690 1000 Type of current • Direct current • Alternating current Yes Yes, frequency range up to 400 Hz Current setting A 0.11 ... 0.16 to 9 ... 12 1.8 ... 2.5 to 20 ... 25 5.5 ... 8 to 40 ... 50 18 ... 25 to 80 ...
100 Power loss per unit (max.) W 3.9 ... 6.6 3.9 ... 6 6 ... 9 10 ... 16.5 Short-circuit protection • With fuse without contactor • With fuse and contactor See "Selection and ordering data" See "Technical specifications" (short-circuit protection with fuses/motor starter protectors for motor feeders) Protective separation between main and auxiliary V conducting path acc.
to IEC 60947-1 500 690 Connection for main circuit Connection type • Terminal screw • Tightening torque Nm • Conductor cross-sections (min./max.), 1 or 2 conductors - Solid mm2 - Finely stranded with end sleeve mm2 - Stranded mm2 - AWG cables, solid or stranded AWG - Ribbon cable conductors mm (number x width x thickness) Screw terminals with box terminal Pozidriv size 2 Allen screw 4 mm 0.8 ... 1.2 2 ... 2.5 3 ... 4.5 4 ... 6 2 x (0.5 ... 1.5)2) 2 x (0.75 ... 2.5)2) Max. 2 x (1 ... 4)2) 2 x (1 ... 2.5)2) 2 x (2.5 ... 6)2) Max. 2 x (2.5 ... 10)2) 2 x (0.75 ... 16) 2 x (2.5 ... 16) 2 x (0.5 ... 1.5)2) 2 x (0.75 ... 2.5)2) 2 x (1 ... 2.5)2) 2 x (2.5 ... 6)2) 2 x (0.75 ... 16) 1 x (0.75 ...
25) 2 x (2.5 ... 35) 1 x (2.5 ... 50) 2 x (0.5 ... 1.5)2) 2 x (0.75 ... 2.5)2) Max. 2 x (1 ... 4)2) 2 x (1 ... 2.5)2) 2 x (2.5 ... 6)2) Max. 2 x (2.5 ... 10)2) 2 x (0.75 ... 25) 1 x (0.75 ... 35) 2 x (10 ... 50) 1 x (10 ... 70) 2 x (18 ... 14) 2 x (14 ... 10) 2 x (18 ... 3) 1 x (18 ... 1) 2 x (10 ... 1/0) 1 x (10 ... 2/0) -- 2 x (6 x 9 x 0.8) 2 x (6 x 9 x 0.8) Busbar connections • Terminal screw • Tightening torque Nm • Conductor cross-sections (min./max.) - Finely stranded with cable lug mm2 - Stranded with cable lug mm2 - AWG cables, solid or AWG stranded, with cable lug - With connecting bar (max. width) mm Busbar connection1) -- M6 x 20 -- 4 ...
6 -- 2 x 70 -- 3 x 70 -- 2/0 -- 12 Connection type • Conductor cross-sections (min./max.) - Solid mm2 - Finely stranded without end sleeve mm2 - Finely stranded with end sleeve mm2 - Stranded mm2 - AWG cables, solid or stranded AWG Cage Clamp terminals 2 x (0.25 ... 2.5) -- 2 x (0.25 ... 2.5) -- 2 x (0.25 ... 1.5) -- -- -- 2 x (24 ... 14) --