SIEMENS
5/30
Siemens IK PI · 2015
IO-Link
SIRIUS 3RB24 solid-state overload relays for IO-Link
Current measuring modules
5
■
Overview
The current measuring modules are designed as system
components for connecting to 3RB24 evaluation units. Using
these evaluation units the motor current is measured and the
measured value sent to the evaluation unit for evaluation.
The current measuring modules in sizes S00 to S3 up to 55 mm
wide are equipped with straight-through transformers and can
be snap-fitted under the evaluation units. The larger evaluation
units are installed directly on the contactor or as stand-alone
units.
■
Selection and ordering data
Current measuring modules for mounting onto contactor
1)
and stand-alone installation
1) 2)
(essential accessories)
Note:
The connecting cable between the current measuring module
and the evaluation module is not included in the scope of
supply; please order separately.
1)
The current measuring modules with an Article No. ending with
"2"
are
designed for mounting onto contactor and stand-alone installation. For
3TF68/3TF69 contactors, direct mounting is not possible.
2)
The current measuring modules with an Article No. ending with
"1"
are
designed for stand-alone installation.
3)
Observe maximum rated operational current of the devices.
4)
Guide value for 4-pole standard motors at 50 Hz 400 V AC. The actual
starting and rated data of the motor to be protected must be considered
when selecting the units.
5)
Maximum protection by fuse only for overload relay, type of coordination
"2". For fuse values in connection with contactors
see Configuration Manuals
-
"Configuring SIRIUS Innovations – Selection Data for Fuseless and
Fused Load Feeders",
-
"SIRIUS Configuration – Selection Data for Fuseless Load Feeders",
.
6)
The modules with an Article No. with
"G"
in penultimate position are
equipped with a straight-through transformer.
■
Accessories
Additional general accessories see page 5/32.
Size
contactor
3)
Rating for
three-phase motor,
rated value
4)
Current setting
value of the
inverse-time
delayed overload
release
Short-circuit pro-
tection with fuse,
type of coordina-
tion "2", opera-
tional class gG
5)
For
overload
relays
Article No.
kW
A
Sizes S00/S0
2) 6)
S00/S0
0,09 … 1,1
0,3 … 3
20
3RB24
3RB2906-2BG1
1,1 … 11
2,4 … 25
63
3RB2906-2DG1
Sizes S2/S3
2)6)
S2/S3
5,5 … 45
10 … 100
315
3RB24
3RB2906-2JG1
Size S6
1)6)
S6 with
busbar connec-
tion
11 … 90
20 … 200
315
3RB24
3RB2956-2TH2
For mounting onto
S6 contactors with
box terminals
11 … 90
20 … 200
315
3RB24
3RB2956-2TG2
Sizes S10/S12
1)
S10/S12 and size
14
(3TF68/ 3TF69)
37 … 450
63 … 630
800
3RB24
3RB2966-2WH2
3RB2906-2BG1,
3RB2906-2DG1
3RB2906-2JG1
3RB2956-2TG2
3RB2966-2WH2
Size contactor
Version
For over-
load relays
Article No.
Connecting cables (necessary accessories)
3RB2987-2.
For connection between evaluation module and current
measuring module
S00 ... S3
• Length 0.1 m
(only for mounting of the evaluation module directly onto the
current measuring module)
3RB24,
3RB29
3RB2987-2B
S00 ... S12
• Length 0.5 m
3RB24,
3RB29
3RB2987-2D
© Siemens AG 2014