Siemens SIRIUS 3RU2 - Page 7

Table of contents
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
Manual, 09/2014, A5E03656507420A/RS-AA/002
7
10.6 Covers for ring cable lug connections ..................................................................................... 99
10.6.1 Description .............................................................................................................................. 99
11 Technical data .................................................................................................................................... 101
11.1 Product data sheet ................................................................................................................ 101
11.2 Performance features ........................................................................................................... 104
11.2.1 General data ......................................................................................................................... 104
11.2.2 Protection functions - overview ............................................................................................. 105
11.2.3 Equipment ............................................................................................................................. 106
11.2.4 Configuration of load feeders ................................................................................................ 106
11.2.5 Features of overload relays .................................................................................................. 107
11.3 3RU21 thermal overload relays ............................................................................................ 108
11.3.1 3RU2116/3RU2126 thermal overload relays ........................................................................ 108
11.3.1.1 General technical data .......................................................................................................... 108
11.3.1.2 Main circuit ............................................................................................................................ 110
11.3.1.3 Main circuit terminals ............................................................................................................ 111
11.3.1.4 Auxiliary circuit ...................................................................................................................... 113
11.3.1.5 Auxiliary circuit connections .................................................................................................. 114
11.3.2 3RU2136 thermal overload relay .......................................................................................... 116
11.3.2.1 General technical data .......................................................................................................... 116
11.3.2.2 Main circuit ............................................................................................................................ 118
11.3.2.3 Main circuit terminals ............................................................................................................ 118
11.3.2.4 Auxiliary circuit ...................................................................................................................... 119
11.3.2.5 Auxiliary circuit connections .................................................................................................. 120
11.3.2.6 Protection function ................................................................................................................ 120
11.3.2.7 Safety .................................................................................................................................... 120
11.3.2.8 Mounting/fixing/dimensions .................................................................................................. 121
11.3.2.9 UL/CSA rated data ................................................................................................................ 121
11.3.2.10 Rated operating current, short-circuit protection, tripping class, and active power loss ...... 122
11.4 3RB30/3RB31 solid-state overload relays ............................................................................ 123
11.4.1 3RB301/3RB302/3RB311/3RB312 solid-state overload relays ............................................ 123
11.4.1.1 General technical data .......................................................................................................... 123
11.4.1.2 Main circuit ............................................................................................................................ 126
11.4.1.3 Conductor cross-sections main circuit .................................................................................. 127
11.4.1.4 Auxiliary circuit ...................................................................................................................... 128
11.4.1.5 Conductor cross sections, auxiliary circuit ............................................................................ 130
11.4.2 3RB303/3RB313 solid-state overload relays ........................................................................ 131
11.4.2.1 General technical data .......................................................................................................... 131
11.4.2.2 Main circuit ............................................................................................................................ 133
11.4.2.3 Main circuit terminals ............................................................................................................ 134
11.4.2.4
A
uxiliary circuit ...................................................................................................................... 135
11.4.2.5 Auxiliary circuit connections .................................................................................................. 136
11.4.2.6 Protection function ................................................................................................................ 137
11.4.2.7 Mounting/fixing/dimensions .................................................................................................. 138
11.4.2.8 UL/CSA rated data ................................................................................................................ 139
11.4.2.9 Rated operating current and active power loss .................................................................... 140