SIEMENS
5/27
Siemens IK PI · 2015
IO-Link
SIRIUS 3RB24 solid-state overload relays for IO-Link
3RB24 for IO-Link, up to 630 A for High-Feature applications
5
■
Overview
(continued)
In conjunction with a function expansion module, the motor
current measured by the microprocessor can be output in the
form of an analog signal DC 4 to 20 mA for operating rotary coil
instruments or for feeding into analog inputs of programmable
logic controllers.
The current values can be transmitted to the higher-level
controller via IO-Link.
The 3RB24 solid-state overload relay for IO-Link is suitable
for operation with frequency converters. Please follow
the instructions in the manual "SIRIUS 3RB24 Solid-State
Overload Relay for IO-Link", see
.
The devices are manufactured in accordance with environmen-
tal guidelines and contain environmentally friendly and reusable
materials. They comply with all important worldwide standards
and approvals.
Type of protection "increased safety EEx e
and explosion-proof enclosure EEx d" in accordance
with ATEX Directive 94/9/EC
The 3RB24 solid-state overload relay (monostable) are suitable
for the overload protection of explosion-proof motors of types of
protection EEx e and EEx d.
They comply with the requirements of IEC 60079-7 (Electrical
devices for areas subject to explosion hazards - Increased
safety "e" as well as for flameproof enclosure "d").
EC type test certificate for Group II, Category (2) G/D has been
submitted. On request.
Connection methods
The evaluation modules of the 3RB24 solid-state overload relays
for High-Feature applications are available with screw terminals
(box terminals) or spring-type terminals at the auxiliary current
end.
The 3RB29 current measuring modules are designed as
straight-through modules. From size S6 upwards they are also
available with an optional busbar connection.
Overload relays overview – matching contactors
✓
Can be used
--
Cannot be used
1)
"Technical specifications" for the use of overload relays with trip class
CLASS 20 can be found in "Short-circuit protection with fuses for motor
feeders", see Configuration Manuals
-
"SIRIUS Configuration – Selection Data for Fuseless Load Feeders",
-
"Configuring SIRIUS Innovations – Selection data for Fuseless and
Fused Load Feeders",
.
■
Benefits
The key features and benefits of the 3RB24 solid-state overload
relays for IO-Link are listed in the overview table
(see Catalog IC 10, Chapter 7 "Protection Equipment"
"Overload Relays"
"General Data").
Screw terminals
Spring-type terminals
The various terminals are indicated in the corre-
sponding tables by the displayed symbols.
Overload
relays
Current
measuring
module
Current
range
Contactors
(type, size, rating in kW)
3RT201.
3RT202.
3RT103.
3RT104.
3RT105.
3RT106.
3RT107.
3TF68/3TF69
S00
S0
S2
S3
S6
S10
S12
Size 14
Type
Type
A
3/4/5.5/7.5
5.5/7.5/11
15/18.5/22
30/37/45
55/75/90
110/132/160
200/250
375/450
SIRIUS 3RB24 solid-state overload relays
1)
3RB24
3RB2483 +
3RB2906
0.3 … 25
✓
✓
--
--
--
--
--
--
3RB2906
10 … 100
✓
✓
✓
✓
--
--
--
--
3RB2956
20 … 200
--
✓
✓
✓
✓
--
--
--
3RB2966
63 … 630
--
--
--
--
--
✓
✓
✓
3RB2906 +
3UF18
630 … 820
--
--
--
--
--
--
--
✓
© Siemens AG 2014