Protection Equipment Introduction System protection 1) 1) 1) 1) Alternating current, three-phase Direct current -- -- -- Rated operational current I e Size S00 Size S0 A A Up to 12 Up to 25 Up to 12 Up to 25 Up to 12 Up to 25 } Up to 25 Size S2 Size S3 A A Up to 50 Up to 100 Up to 50 Up to 100 Up to 50 Up to 100 } Up to 100 Size S6 Size S10/S12, Size 14 (3TF6) A A -- -- Up to 200 Up to 630 Up to 200 Up to 630 Up to 200 Up to 630 Rated frequency Hz 50/60 50/60 50/60 50/60 Mechanical RESET -- -- -- -- -- -- Electrical remote RESET -- -- -- -- -- -- Integrated in the unit Integrated in the unit Sealable covers for setting knobs Integrated in the unit 1) The units are responsible in the main circuit for overload protection of the assigned electrical loads (e.
g.motors), feeder cable and other switching and protection devices in the respective load feeder. Has this function or can use this accessory -- Does not have this function or cannot use this accessory 2) Size S3 up to 1000 V AC. 3) Size S2 (only with straight-through transformer), S3, S6, S10, S12 up to 1000 V AC. 4) With reference to the 3RB29 .6 current measuring modules. 5) Stand-alone installation without accessories is possible. 6 Siemens · 2009 Type 3RU11 3RB20 3RB21 3RB22/3RB23 Overload relays up to 630 A Applications Motor protection ✓ ✓ ✓ ✓ Alternating current, single-phase ✓ -- -- ✓ Size of contactor S00, S0, S2, S3 S00 ... S12 S00 ... S12 S00 ...
S12 Rated operational voltage Ue V 690/1000 AC2) 690/1000 AC3) 690/1000 AC3) 690/1000 AC4) Trip classes CLASS 10 CLASS 10, CLASS 20 CLASS 5, 10, 20, 30 Adjustable CLASS 5, 10, 20, 30 Adjustable Thermal overload releases A A 0.11 ... 0.16 to 80 ... 100 -- -- -- Solid-state overload releases A A -- 0.1 ... 0.4 to 160 ... 630 0.1 ... 0.4 to 160 ... 630 0.3 ... 3 to 63 ... 630 Rating for induction motor at 400 V AC kW kW 0.04 to 45 0.04 ... 0.09 Up to 90 ... 450 0.04 ... 0.09 to 90 ... 450 0.09 ... 1.1 to 37 ...
450 Accessories For sizes S00 S0 S2 S3 S00 S0 S2 S3 S6 S10/ S12 S00 S0 S2 S3 S6 S10/ S12 S00 S0 S2 S3 S6 S10/ S12 Terminal brackets for stand-alone installation ✓ ✓ ✓ ✓ ✓ ✓ 5) 5) 5) 5) ✓ ✓ 5) 5) 5) 5) 5) 5) 5) 5) 5) 5) Cable releases for RESET ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ -- -- -- -- -- -- Terminal covers -- -- ✓ ✓ -- -- -- ✓ ✓ ✓ -- -- -- ✓ ✓ ✓ -- -- -- ✓ ✓ ✓