Siemens 3RU11 - Introduction; Overview

Protection Equipment
Introduction
2
Siemens · 2011
■ Overview
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.
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.
✓ Has this function or can use this accessory
-- Does not have this function or cannot use this accessory
Type 3RU11 3RB20 3RB21 3RB22/3RB23
Overload relays up to 630 A
Applications
System protection ✓
1)
✓
1)
✓
1)
✓
1)
Motor protection ✓ ✓ ✓ ✓
Alternating current, three-phase ✓✓ ✓ ✓
Alternating current, single-phase ✓ -- -- ✓
Direct current ✓ -- -- --
Size of contactor S00, S0, S2, S3 S00 ... S12 S00 ... S12 S00 ... S12
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 operational voltage U
e
V 690/1000 AC
2)
690/1000 AC
3)
690/1000 AC
3)
690/1000 AC
4)
Rated frequency Hz 50/60 50/60 50/60 50/60
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)
Mechanical RESET ✓ ✓ ✓ ✓ ✓✓✓✓✓✓ ✓✓✓✓✓✓ -- -- -- -- -- --
Cable releases for RESET ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ -- -- -- -- -- --
Electrical remote RESET ✓✓✓✓-- -- -- -- -- -- Integrated in the unit Integrated in the unit
Terminal covers -- -- ✓ ✓ -- -- -- ✓ ✓ ✓ -- -- -- ✓ ✓ ✓ -- -- -- ✓ ✓ ✓
Sealable covers
for setting knobs
Integrated in the unit ✓✓✓✓✓✓ ✓✓✓✓✓✓ ✓✓✓✓✓✓