Type: T021/I1 Article No.: 207081 Ordering information Design Surface mounting Description Without auxiliary contacts Main conducting paths No. of poles M 3 Auxiliary contacts N/O 0 Auxiliary contacts B 0 Max. threephase motor rating (per set of 3 contacts) 5060 Hz AC3 400/415 P kW 11 V 5060 Hz Rated uninterrupted current I A 20 u Contact sequence General IEC/EN 60947, VDE 0660, IEC/EN 60204, CSA, UL Switchdisconnectors to Standards IEC/EN 609473 Loadbreak switches to IEC/EN 609473 6 Lifespan, mechanical Operations 10 1 1Maximum operating frequency Operations/h 3000 Damp heat, constant, to IEC Climatic proofing 60068278 Damp heat, cyclical, to IEC 60068230 Ambient temperature Open C 25/50 Enclosed C 25/40 Mounting position As required Documentation Main catalogue HPL Mechanical shock resistance g > 15 (shock duration 20 ms) Contacts Rated operational voltage U V AC 690 e Rated impulse withstand voltage U V AC 6000 imp Overvoltage category/pollution III/3 degree Rated uninterrupted current open I A 20 u Enclosed I A 20 u Loadcarrying capacity in intermittent operation, Class 12 AB 25 % DF I 2 e AB 40 % DF I 1,6 e AB 60 % DF I 1,3 e Shortcircuit rating Fuse A gG/gL 20 Rated shorttime withstand I A 320 cw rms current (1 s current) Safe isolation to VDE 0106 Part 101 and Part 101/A1 between the contacts V AC 440 90 60 Switching angles 45 30 Contact units 11 Doublebreak contacts max. 22 Current heat loss per contact at I W 0,6 e Terminal capacities 1 (1 2.5) 2 Solid or stranded mm 2 (1 2.5) 2