Wireless Contact Closure Relay 1-Channel 20 Amp
MIRCR120$526.00
Wireless Contact Closure Switching
The MirCR120 Wireless Contact Closure Relays are a set of two boards, a sender board with one contact closure (no voltage) input and a receiver board with one relay. The input on the sender board will control the relay on the receiver board - it's just that simple! When the contact closure circuit is closed the relay will remain energized, when the circuit opens the relay will turn off! Contact closure inputs such as buttons, relays, switches or other electronic devices (no voltage) attached to inputs on the sender boards will control the relay on the receiver board.
Wireless Contact Closure Relay
- 1 20-Amp Relay Installed
- Single Pole Double Throw (SPDT) Relay
- Normally Open 20-Amp, Normally Closed 10-Amp
- Wire Using 1/4" Quick Disconnect Terminals
- Temperature Rating -40° C to 85° C - Sender Board Controls Receiver Board
- 1 Contact Closure Input on Sender Board
- 1 20-Amp Relay on Receiver Board
- Sold in Pairs - Wireless Contact Closure
- 900 MHz Radios Installed
- Line of Sight Operation
- 2-Mile Range
- Multiple Pairs will not Interfere with Each Other - Works Together Right Out of the Box!
- No Computer, No Programming, No Set-Up!
Dry Contact Input ONLY
Please Note: Users must NEVER apply any voltage to the inputs on the MirC Sender Board, these inputs are for
Dry Contact Connections ONLY.
MirC Relay
This pair of boards allows you to control a relay using a dry contact (no voltage). The dry contact can come from a manual switch, a sensor or device that provides a contact closure, or another relay. As long as the contact closure circuit is closed the relay will remain energized or on. When the circuit opens the relay will de-energize or turn off. Meaning the relay will respond to a toggle or momentary connection depending on what type of input you select. Each MirC pair is ready to stand up to rigorous demands from heat, cold or vibration. Take it from us, these controllers will hold up!Status of Remote Relays
Both boards are equipped with LEDs that display the status of the relay on the receiver board. Status information is verified using 2-way wireless communications. If communication is lost between the devices, the LED will turn off. Additionally, every MirC controller is equipped with a Busy/Ready LED. If the Busy LED flashes, this indicates the other device has successfully received and accepted your contact closure status. If the Busy LED does not flash, the remote device is out of range.
What Happens When Communication is Lost
A common question we receive is what happens to the relay that is energized when communications between the boards is lost. The relay can remain energized or on until communication is re-established or the relay can de-energize or turn off. This is done by a simple jumper on the board and setting it to Beacon or Smart mode. Regardless of the Mode you choose, if the busy LED flashes, the two devices are communicating properly. If the Busy LED does not flash at all, the devices are unable to communicate. See the table below for the differences between Beacon and Smart mode.
Contact Closure Inputs
The inputs on these boards accept a dry contact only - no voltage. Users must never apply any voltage to an input on either of the MirX Controllers.Relay Outputs
Relays do NOT provide a voltage output and can be used as a dry contact. They provide a contact closure output and simply interrupt the power to the device you are switching. The relays are rated for 240 VAC or 24 VDC. See the Data Sheets tab above for the specs on relays installed.SPDT Relay Installed
This device has SPDT relays installed. SPDT Single Pole Double Throw Relays have three connections - Common, Normally Open, and Normally Closed. When the relay is off, the common is connected to the normally closed connection of the relay. When the relay coil is energized, the Common swings to the Normally Open Connection of the Relay. You can wire the device you are switching to either the Normally Open or the Normally Closed position using screw terminal connections. The maximum guage wire the terminal can handle is 14 ga but we have used up to 12 ga solid core for several applications with no issues.
2-Million Cycles
MirC series controllers are designed for long life, you should expect to get years of service from your controller and literally 2-million cycles from the relays on board. With a 5-year warranty and a money back guarantee you have nothing to loose! Place your order now, while everything is in front of you.Break-A-Way Tabs for a Smaller Design
The MirC relays have a great feature where space is a premium - Break-A-Way Tabs. The Break-A-Way Tabs allow most boards to fit in an optional undrilled plastic enclosure. Snap off the Break-A-Way Tabs and you have a controller with a smaller profile when you need to fit in a tight space.
5-Year Warranty/Money Back Guarantee
MirC controllers are guaranteed against manufacturing and functionality defects for a full 5 years! Not to mention a 30-day money back guarantee! If for any reason you are not happy with a relay purchased from Relay Pros, simply return it within 30 days and we will give you your money back! Controllers that are damaged by our customers will not of course be warranted under any circumstances.This Board is RoHS Compliant
This board is led free and RoHS Compliant. If your requirements are for RoHS compliant parts this board is manufactured with RoHS compliant led free parts and solder.
Shipping
The boards sold are brand new units shipped from our office conveniently located in Missouri. These boards are completely tested before they are released for shipping With so many boards on our site it is impossible to stock boards, please allow two to three days production time for your order to ship. If you have any questions please feel free to call our office at 800-960-4287 or e-mail us at sales@relaypros.com.Contact Closure Relay Is Here!
A more streamlined manufacturing process brings a more durable, reliable and better relay board to the market. Here's a lists of great features:- Single Pole Double Throw Relays Installed
- Wire to Normally Open or Normally Closed Position
- 12 Guage Solid Core Wire Capacity - Screw Terminal Contact Closure and Relay Connections
- Break-A-Way Tabs Lets you Decide the Board's Size
- Temperature Rating -40° C to 85° C
- RoHS Compliant
User Friendly Board Design
- Control Relay from a Dry Contact (No Voltage)
- Inputs on Sender Board Control Relays on Receiver Board
- Sender Board Displays Status of Remote Relays
MirC Features
Dry Contact Input ONLY
Please Note: Users must NEVER apply any voltage to an input on the MirC Sender Board, these inputs are for
Dry Contact Connections ONLY.
MirC Relay
This pair of boards allows you to control a relay using a dry contact (no voltage). The dry contact can come from a manual switch, a sensor or device that provides a contact closure, or another relay. As long as the contact closure circuit is closed the relay will remain energized or on. When the circuit opens the relay will de-energize or turn off. Meaning the relay will respond to a toggle or momentary connection depending on what type of input you select. Each MirC pair is ready to stand up to rigorous demands from heat, cold or vibration. Take it from us, these controllers will hold up!Status of Remote Relays
Both boards are equipped with LEDs that display the status of the relay on the receiver board. Status information is verified using 2-way wireless communications. If communication is lost between the devices, the LED will turn off. Additionally, every MirC controller is equipped with a Busy/Ready LED. If the Busy LED flashes, this indicates the other device has successfully received and accepted your contact closure status. If the Busy LED does not flash, the remote device is out of range.
What Happens When Communication is Lost
A common question we receive is what happens to the relay that is energized when communications between the boards is lost. The relay can remain energized or on until communication is re-established or the relay can de-energize or turn off. This is done by a simple jumper on the board and setting it to Beacon or Smart mode. Regardless of the Mode you choose, if the busy LED flashes, the two devices are communicating properly. If the Busy LED does not flash at all, the devices are unable to communicate. See the table below for the differences between Beacon and Smart mode.
Contact Closure Inputs
The inputs on these boards accept a dry contact only - no voltage. Users must never apply any voltage to an input on either of the MirX Controllers.Relay Outputs
Relays do NOT provide a voltage output and can be used as a dry contact. They provide a contact closure output and simply interrupt the power to the device you are switching. The relays are rated for 240 VAC or 24 VDC. See the Data Sheets tab above for the specs on relays installed.SPDT Relay Installed
This device has SPDT relays installed. SPDT Single Pole Double Throw Relays have three connections - Common, Normally Open, and Normally Closed. When the relay is off, the common is connected to the normally closed connection of the relay. When the relay coil is energized, the Common swings over to the Normally Open Connection of the Relay. You can wire the device you are switching to either the Normally Open or the Normally Closed position. 
The Common (COM) is the
moving part of the relay that comes in contact with the Normally Open (NO) when the coil to the relay is energized. Wiring is done directly to the Relay terminals using a common 1/4" quick disconnect terminal. To the right is a picture of the connector that will connect to the relay.
Amperage Rating
The 20-Amp relay is reated for 20-amps on the Normally Open connection and rated for 10-amps on the Normally Closed connection. Please keep this in mind when wiring to the Normally Closed side it is only rated for 10-amps.2-Million Cycles
MirC series controllers are designed for long life, you should expect to get years of service from your controller and literally 2-million cycles from the relays on board. With a 5-year warranty and a money back guarantee you have nothing to loose! Place your order now, while everything is in front of you.Break-A-Way Tabs for a Smaller Design
The MirC relays have a great feature where space is a premium - Break-A-Way Tabs. The Break-A-Way Tabs allow most boards to fit in an optional undrilled plastic enclosure. Snap off the Break-A-Way Tabs and you have a controller with a smaller profile when you need to fit in a tight space.
This Board is RoHS Compliant
This board is led free and RoHS Compliant. If your requirements are for RoHS compliant parts this board is manufactured with RoHS compliant led free parts and solder.
5-Year Warranty/Money Back Guarantee
MirC controllers are guaranteed against manufacturing and functionality defects for a full 5 years! Not to mention a 30-day money back guarantee! If for any reason you are not happy with a relay purchased from Relay Pros, simply return it within 30 days and we will give you your money back! Controllers that are damaged by our customers will not of course be warranted under any circumstances.Shipping
The boards sold are brand new units shipped from our office conveniently located in Missouri. These boards are completely tested before they are released for shipping With so many boards on our site it is impossible to stock boards, please allow two to three days production time for your order to ship. If you have any questions please feel free to call our office at 800-960-4287 or e-mail us at sales@relaypros.com.Contact Closure Relay Is Here!
A more streamlined manufacturing process brings a more durable, reliable and better relay board to the market. Here's a lists of great features:- Single Pole Double Throw Relays Installed
- Wire to Normally Open or Normally Closed Position
- Normally Open Rated 20-Amps
- Normally Closed Rated 10-Amps - Wire Directly to the Relay Using 1/4" Quick Disconnect Terminal
- Break-A-Way Tabs Lets you Decide the Board's Size
- Temperature Rating -40° C to 85° C
- RoHS Compliant
User Friendly Board Design
- Control Relay from a Dry Contact (No Voltage)
- Inputs on Sender Board Control Relays on Receiver Board
- Sender Board Displays Status of Remote Relays
MirC Features
Enclosure Available
The CFL Enclosure is an undrilled, non-waterproof enclosure and is available at checkout for the Sender Board.CFL Spec Sheet
CAD Drawing: CFL CAD Drawing
3D Model: CFL_3D
Enclosure Available
The TFL Enclosure is an undrilled, non-waterproof enclosure and is available at checkout for the Receiver Board.TFL Spec Sheet
CAD Drawing: TFL CAD Drawing
3D Model: TFL_3D
Power Supply Available
The PWR12 is regulated power supply providing clean power necessary for
the performance of these boards. The PWR12 US power supply is a 120VAC to 12VDC 1.25A 60Hz regulated
power supply and it plugs into the barrel connector on the board. The output connector is a 2.1mm I.D. x 5.5mm
O.D. x 9.5mm R/A barrel connector.
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Induction Suppression
Controlling
an inductive load using our relay controllers requires the use of induction suppression capacitors. The purpose of this capacitor
is to absorb the high voltages generated by inductive loads, blocking them from the contacts of the relay. Without this capacitor,
the lifespan of the relay will be greatly reduced. Induction can be so severe that it electrically interferes with the microprocessor
logic of our controllers, causing relay banks to shut themselves down unexpectedly.
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