OR-8450TXN 184 50

OR-8450; 12x RO, GO, 12-230 V AC/2,5 A, switching relay

DO 12x RO
Picture Variant Variant description
The peripheral module OR-8450 contains 12 relay outputs. Individual outputs can be loaded with a continuous current of up to 2,5 A. The module is galvanically separated from other PLC circuits.
The module is equipped with a screwless removable connector of 17 terminals with locking after insertion into the module.
Order num. TXN 184 50
Teco code TXN 184 50
Categories TC800 - I / O expansion modules
Tags -
COM - System buses
TCL3 - system I/O bus 1x TCL3 slave
RO - Parameters of binary relay outputs (group A)
Parameters valid for the terminals DO0 - DO11
Number of relay outputs 12
Number of output groups 4
Number of outputs in group 3
Organization of relay outputs into groups 3x (DO0-DO2); 3x (DO3-DO5); 3x (DO6-DO8); 3x (DO9-DO11)
Output type electromechanical relay, unprotected output
Contact type NO - Normally Open
Galvanic separation from internal circuits Yes
Galvanic isolation between groups Yes
Diagnose Alarm signaling on panel module
Switching current 2,5 A max., 100 mA min.
Switching voltage 250 V AC max., 5 V AC min., 30V DC max.
Short-term output overload - inrush 6 A max. (20 ms max.)
Current through common clamp 7.5 A max.
Contact closing time typ. 10 ms
Contact opening time typ. 4 ms
Limit values of switched resistive load max. 2.5 A at 30 V DC or 230 V AC
Switching inductive load limits DC13 max. 2.5 A at 30 V DC
Switching inductive load limits AC15 max. 2.5 A at 230 V AC
Switching frequency without load max. 300 switching / min.
Switching frequency with rated load max. 20 switching / min.
Mechanical life min. 5,000,000 cycles
Electrical life at maximum resistive load min. 100,000 cycles
Electrical life at maximum load inductive DC13 min. 100,000 cycles
Electrical life at maximum load inductive AC15 min. 100,000 cycles
Short-circuit protection External
Treatment of inductive load External RC element, varistor (AC), diode (DC)
Insulation voltage between outputs and internal circuits 3750 V AC
Insulation voltage between output groups Output groups DO0-2 and DO3-5 are separated by 250 V AC working isolation. The same applies to groups DO6-8 and DO9-11.
The mutual isolation between the first pair of output groups (DO0-2 and DO3-5) and the second pair of output groups (DO6-8 and DO9-11) meets the isolation protection of 3750 V AC.
Notice! For groups separated only by working insulation, it is not possible to switch e.g. 230 V AC circuits with one group and SELV 24 V circuits with the other group. With groups separated at 3750 V AC, this is already possible.
Power supply
Supply voltage UVM, UVIO, nominal value 24 V DC
Supply voltage UVM, UVIO, allowed range 20 - 30 V DC
IVM supply current at UVM = 24 V 11 mA
IVIO supply current at UVIO = 24 V 85 mA
Max. power consumption at the VM level 0,3 W
Max. input power at VIO level 2 W
Module thermal/power loss 3 W
Size and weight
Weight approx. 150 g
Product dimensions (width x height x depth) 24 x 118 x 97 mm
Operating conditions, product standards
Product standard ČSN EN 61131-2:2008 (idt IEC 61131-2:2007) - Programmable control units
Protection class of electrical object II, according to ČSN EN 61140 ed.3: 2016 (idt IEC 61140:2016)
IP rating (Ingress Protection) according to ČSN EN 60529: 1993 (idt IEC 529: 1989) IP20
Operating areas Normal, acc. ČSN 33 2000-1 ed.2: 2009 (mod IEC 60354-1:2005)
Degree of pollution 2, according to ČSN EN 60664-1 ed.2: 2008 (idt IEC 60664-1: 2007)
Overvoltage category installation II, according to EN 60664-1 ed_2: 2008 (idt IEC 60641-1: 2007)
Type of device Built-in
Working position Vertical
Type of operation (operating frequency) Continuous
Ambient operating temperatures -20 °C to + 55 °C
Operating relative humidity from 10 % up to 95 % without condensation
Operating atmospheric pressure min. 70 kPa (<3,000 m above sea level)
Storage temperatures –25 °C to +70 °C
Storage relative humidity Max. 80% without vapor condensation
Storage environment Dry, clean areas without conductive dust, aggressive gases or acid vapors for a period not exceeding the warranty period.
Transport temperatures -25°C to -70°C
Transport environment Covered means of transport, transport packaging must not be exposed to the effects of rain and snow
Electromagnetic compatibility, Mechanical endurance
Electromagnetic compatibility / Emission A, according to EN 55032 ed. 2: 2017 (idt CISPR 32: 2015)
Emmisions - note In premises where the use of radio and television receivers can be expected to be used a distance of 10 m from these devices may cause radio interference. In such a case, the user may be required to take appropriate action.
Electromagnetic compatibility / Immunity min. as required by EN 61131-2: 2007
Sinusoidal vibration endurance 10 Hz to 57 Hz amplitude 0.075 mm, 57 Hz to 150 Hz acceleration 1 G, according to Fc according to ČSN EN 60068-2-6 ed.2:2008 (idt IEC 60068-2-6:2007), 10 cycles in each axis .
Packaginng, transportation, storage
Description The module is packed in a paper box. This documentation is also part of the package. The outer packaging is carried out according to the scope of the order and the method of transport in a transport package provided with labels and other data necessary for transport. The product must not be exposed to direct weather conditions during transport and storage. Malting of the product is only allowed in clean rooms without conductive dust, aggressive gases and vapors. The most suitable storage temperature is 20 ° C
Assembly description The installation of the TC800 system module is carried out by sliding it perpendicularly onto the DIN rail ČSN EN 50022 with busbar and locking latch in the lower part of the module. A more detailed description and mechanical drawings with dimensions are given in the documentation TXV 004 72.
Warning All external circuits connected to the module must meet the conditions for SELV circuits!
Connection description The module is equipped with a screwless removable connector with 17 terminals with locking after insertion into the module.
Connection of inputs / outputs Connector with screwless terminals 0.2 ~ 1.5 mm2
Connection description An example of module connection is shown in the following figure.
Module operation
Module configuration The module is operated, set up and diagnosed from the Mosaic development environment.
Commissioning On the module, the DIP switch in the left part of the case sets a unique address within one frame. The module is fully ready for operation after inserting it into the frame and turning on the power supply.
Module diagnostics The basic diagnostic system of the module is part of its standard software. It has been in operation since the module power was turned on and works independently of the user. Diagnosed error states of the module and connected peripheral modules of the assembly are signaled in the status word of the module and on the module panel
Description The module does not require any maintenance under general installation conditions. The operations in which a part of the module has to be dismantled must always be carried out with the supply voltage disconnected.
Notice Because the module contains semiconductor components, it is necessary to follow the principles for working with electrostatic sensitive components when handling the removed cover. It is not allowed to directly touch the printed circuit boards without protective measures !!!
Generally Warranty and complaint conditions are governed by the Terms and Conditions of Teco a.s.
Notice You must meet all the conditions of this documentation before turning on the system. The system must not be put into service unless it has been verified and confirmed that the machinery meets the requirements of Directive 89/392 / EEC, in so far as it applies to it. Documentation subject to change.

HW documentation


OR-8450 - Basic documentation

1.58 MB, (EN)

Files for designers


TC800 - library of elements in DXF and DWG formats, v. 2024/01

487.65 kB

TC800 - element library for SchemataCAD, v. 2024/01

116.21 kB

EC - Declaration of Conformity


TC800 - CE declaration of conformity (cs)

292.20 kB

TC800 - CE Declaration of Conformity (en)

709.29 kB
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