Relay Modules

Relays are switches that open and close circuits. They control one electrical circuit by opening or closing contacts in another circuit. When a relay contact is normally open (NO), there is an open contact when the relay is not energized. When a relay contact is normally closed (NC), there is a closed contact when the relay is not energized. Applying electrical current to the contacts will change their state. Many relays use an electromagnet to mechanically operate a switch, but other operating principles such as solid-state relays are also used. Relays are used where it is necessary to control a circuit by a low-power signal or where several circuits must be controlled by one signal. Depending on the structural features and operating principle, relays are of different types such as monitoring, regulating, auxiliary and protective. Classification of the types of relays depend on the function for which they are used.

Relay modules contain components that make switching and connecting easier, and act as indictors to show if the module is powered and if the relay is active. On the input side of a standard single-channel relay module, is the screw terminal block. This is the part of the module that comes in contact with the mains, and screw terminals make it easier to connect thick mains cables. The three connections on the terminal block are connected to the normally open, normally closed and common terminals of the relay. An input jumper is used to supply power to the relay coil and the ‘relay status LED.’ The output connectors are wires that are suitable for hardware connection.

PLC logic relays combine logic, interface and field connections. They have a modular design with a variety of relay modules enabling channel-specific configurations, and sensors and actuators that can be connected directly to the relay. In addition to the basic module, extension modules can be added for more complex tasks. Up to 48 IO signals can be acquired with a basic module and two extension modules. Parameter adjustments and monitoring can be accomplished using an app for IOS and Android.

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$176.51
PLC logic basic logic module, generation 2, with 16 I/Os, for plug-in connection to 8 digital or analog PLC-INTERFACE terminal blocks, can be extended to 48 I/Os, integrated realtime clock, micro USB socket, accommodates memory block and Bluetooth adapter, push-in connection
$151.96
PLC logic standalone logic module, generation 2, with 16 I/Os, for plug-in connection to 8 digital or analog PLC-INTERFACE terminal blocks, cannot be extended, integrated realtime clock, micro USB socket, accommodates memory block and Bluetooth adapter, screw connection
$151.96
PLC logic standalone logic module, generation 2, with 16 I/Os, for plug-in connection to 8 digital or analog PLC-INTERFACE terminal blocks, cannot be extended, integrated realtime clock, micro USB socket, accommodates memory block and Bluetooth adapter, push-in connection
$176.51
PLC logic basic logic module, generation 2, with 16 I/Os, for plug-in connection to 8 digital or analog PLC-INTERFACE terminal blocks, can be extended to 48 I/Os, integrated realtime clock, micro USB socket, accommodates memory block and Bluetooth adapter, screw connection
$283.40
Interface module, with plug-in socket for 4 solid-state relays, with security latch, with screw connection, with light indicator and fuse, control logic: minus switching
$202.61
VARIOFACE 4-channel module for solid state relays
$466.55
Interface module, with plug-in socket for 8 solid-state relays, with security latch, with screw connection, with light indicator and fuse, control logic: minus switching
$896.96
Interface module, with plug-in socket for 16 solid-state relays, with security latch, with screw connection, with light indicator and fuse, control logic: plus switching
$896.96
Interface module, with plug-in socket for 16 solid-state relays, with security latch, with screw connection, with light indicator and fuse, control logic: minus switching
$290.84
Interface module, with plug-in socket for 4 solid-state relays, with security latch, with screw connection, with light indicator and fuse, control logic: plus switching
$466.55
Interface module, with plug-in socket for 8 solid-state relays, with security latch, with screw connection, with light indicator and fuse, control logic: plus switching
$88.65
Analog output module for PLC logic logic Modules (Generation 2 only), single-channel, signal type (4 - 20 mA, 0 - 20 mA, 0 - 10 V, 2 - 10 V) can be configured via DIP switch, Push-in connection
$80.57
Pt 100/Pt1000 temperature transducer for PLC logic logic Modules (Generation 2 only), single-channel, signal type (Pt 100, Pt 1000) can be configured via DIP switch, screw connection
$95.08
PLC logic extension logic module with 16 I/Os for plug-in connection to 8 PLC-INTERFACE terminal blocks for extending the basic module (a maximum of two extension Modules can be connected to a basic module), screw connection
$75.74
Analog input module for PLC logic logic Modules (Generation 2 only), single-channel, signal type (4 - 20 mA, 0 - 20 mA, 0 - 10 V, 2 - 10 V) can be configured via DIP switch, Push-in connection
$88.65
Analog output module for PLC logic logic Modules (Generation 2 only), single-channel, signal type (4 - 20 mA, 0 - 20 mA, 0 - 10 V, 2 - 10 V) can be configured via DIP switch, screw connection
$80.57
Pt 100/Pt1000 temperature transducer for PLC logic logic Modules (Generation 2 only), single-channel, signal type (Pt 100, Pt 1000) can be configured via DIP switch, Push-in connection
$95.08
PLC logic extension logic module with 16 I/Os for plug-in connection to 8 PLC-INTERFACE terminal blocks for extending the basic module (a maximum of two extension Modules can be connected to a basic module), push-in connection
$75.74
Analog input module for PLC logic logic Modules (Generation 2 only), single-channel, signal type (4 - 20 mA, 0 - 20 mA, 0 - 10 V, 2 - 10 V) can be configured via DIP switch, screw connection
$25.09
Power Modules, pluggable, for EMD-FL-..., supply voltage: 323...456 VAC
$25.09
Power Modules, pluggable, for EMD-FL-..., supply voltage: 195 VAC - 264 VAC
$25.09
Power Modules, pluggable, for EMD-FL-..., supply voltage: 425...550 VAC
$34.72
Power terminal block, for the input of up to four potentials, for mounting on NS 35/7.5
$23.48
Power Modules, pluggable, for EMD-SL-..., supply voltage: 20.2...26.4 VAC
$23.48
Power Modules, pluggable, for EMD-SL-..., supply voltage: 88...121 VAC
$34.81
Power Modules, pluggable, for EMD-SL-..., supply voltage: 20 VDC - 30 VDC
$23.48
Power Modules, pluggable, for EMD-SL-..., supply voltage: 195...264 VAC
$23.48
Power Modules, pluggable, for EMD-SL-..., supply voltage: 108 VAC - 132 VAC
$186.34
VARIOFACE module, for 4 plug-in miniature relays or miniature optocouplers, with LED, 48 - 60 VDC input voltage
$186.34
VARIOFACE module, for 4 plug-in miniature relays or miniature optocouplers, with LED, 24 VDC input voltage
$708.85
VARIOFACE module, for 16 plug-in miniature relays or miniature optocouplers, with LED, 230 VAC input voltage
$314.98
VARIOFACE module, for 8 plug-in miniature relays or miniature optocouplers, with LED, 24 VDC input voltage
$219.28
VARIOFACE module, for 4 plug-in miniature relays or miniature optocouplers, with LED, 24 VAC/DC input voltage
$682.64
VARIOFACE module, for 16 plug-in miniature relays or miniature optocouplers, with LED, 24 VDC input voltage
$311.03
VARIOFACE module, for 8 plug-in miniature relays or miniature optocouplers, with LED, 24 VDC input voltage
$628.99
VARIOFACE module, with plug-in bases for 8 miniature relays with two PDT contacts, with light indicator
$177.48
VARIOFACE module, for 4 plug-in miniature relays or miniature optocouplers, with LED, 230 VAC input voltage