User Guide

3RT1 contactors/ 3RH1 control relays
SIRIUS System Manual
3-18 GWA 4NEB 430 0999-02 DS 01
PLC-connection
Design 3RT1...-.P for PLC-output, 24 V DC or PLC-relay output with
remaining lifetime indication, RLT
"Remaining lifetime
RLT" warning signal
When the remaining lifetime reaches 20 %, a warning signal is provided
over a free floating relay contact (NO, hard-gold plated, encapsulated) at the
R1/R2 terminals and can be processed through SIMOCODE-DP inputs, PLC
inputs or elsewhere.
Current ratings of the R1/R2 relay output:
• Ie/AC-15 at 24 ... 230 V: 3 A
• Ie/DC-13 at 24 V: 1 A
Control The contactor can be controlled:
• by PLC-output 24 V DC
• by a relay output, for example from a PLC, SIMOCODE-DP.
The PLC - connects to a 2 pole plug-in con-
nector on the front left side of the withdraw-
able coil (The Cage Clamp- plug-in connector
comes with delivery). The polarity is marked
on the plug-in connector.
The complete control electronics are con-
tained in the withdrawable coil. The mag-
netic coil and the control electronics make
up one device.
0.2 ... 2.5 mm²
AWG 24 to 14
9
1
PLC = DC 24V
2
The entire electronics portion of
the models with remaining life-
time indication RLT is contained
in a side mounted electronic
module. The withdrawable coil
piece (for RLT) only contains the
magnetic coil. The coil is con-
nected to the side mounted elec-
tronic module by wires with tab
connectors in order to avoid con-
fusion with other coils when
changing them out.
The cables connected to the line
and load side of the contactor
are used for the remaining life-
time indication RLT detection.
RLT
60%
40%
20%
Reset
A1 A2
On
50 - 60 Hz
DC
H1
H2
R1
R2
In+
In-
RLT
24 V
DC
-.PP3.
200 -277 V
A1/A2 terminals
for supplying the coil
voltage
LED-indicators
• Contactor On
• RLT-indication
- 60 % (green)
- 40 % (orange)
- 20 % (red)
Reset-button for RLT
Input/output termi-
nals(7-poles)
• PLC - relay input
H1/H2
• not used
• RLT- Relay output R1/
R2
• PLC-Input
24 V DC , IN+/IN-