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
11
Technical data .................................................................................................................................... 101
11.1
Product data sheet ................................................................................................................ 101
11.2
Performance features ........................................................................................................... 104
11.2.1
11.2.2
Protection functions - overview ............................................................................................. 105
11.2.3
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
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
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
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
11.4.2.3
Main circuit terminals ............................................................................................................ 134
11.4.2.4
Auxiliary 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