XR420HP XR Expansion Board

Low Cost 4-Channel 20A SPDT Expansion Relay Board

XR Expansion Board
XR Series Expansion Relay Boards add Relays to ANY NCD Device with an XR Expansion Port!
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Low Cost 4-Channel 20A SPDT Expansion Relay Board

$132.00/ea
 
 

This movie will explain the different expansion options that can be used with our controllers.

 

This video is a basic introduction to the world of Computer Controlled Switching and Relays in general.
Also read our "Introduction to Computer Control" Article.

 

This video will show you what Induction is and how to use Capacitors to Suppress it.
Also read our Article on Induction Suppression.

Features

  • Onboard Relay Status LEDs
  • Screw Terminal Connectors
  • Available with SPST, SPDT, DPDT, High-Current and Signal Switching Relays
  • Power LEDs
  • 2.1mm Power Connector
  • Optional Power Supply
  • Includes 6" XR Expansion Cable
XR Expansion Board

This Product:

XR420HP
Ratings AC DC
Voltage 240 24
Amperage 20 20
Low Cost 4-Channel 20A SPDT Expansion Relay Board
Stock#: XR420HP  
1-9 $132.00

Related Products:

QUANTITY DISCOUNTS UP TO 100 PIECES ARE BUILT INTO OUR SHOPPING CART. CHANGE YOUR ORDER QUANTITY TO SEE QUANTITY PRICING.
Ozarks Audio Visual
www.relaypros.com
800-960-4287

XR Expansion Relay Banks

XR Relay Expansion Controllers add a large variety of relay switching capabilities to an existing NCD device!

XR Expansion Ports are used to add banks of external relays to an NCD device.  As we continue to develop new devices, a modular architecture will be implemented, offering the greatest amount of user flexibility.  Separating the brawn from the brains allows us to continue to develop more intelligent controllers without making existing hardware obsolete.

Our Line of XR Expansion Relay Controllers add unlimited computer controlled switching potential, using a simple, modular upgrade path.  From low power signal switching to high current, high voltage control, we offer an XR Expansion controller that will meet your switching requirements.  Available with Single Pole Double Throw (SPDT) and Double Pole Double Throw (DPDT) relays, Open Collector Outputs (OC), and 8, 16, 24, or 32 outputs per expansion board.

Above: A 4-channel ProXR Series Controller (bottom) shown with an 8-channel expansion board attached.  Simply chain the XR Expansion Modules, one after another, to add additionl relays to any ProXR board up to 256 relays.
(click picture to enlarge)


Controlling XR Expansion Banks

XR Expansion Boards have no on-board brains.  They are entirely reliant on the brains of a "master" device.  A master device is an NCD controller with an XR expansion port and a microprocessor of some kind.  Some master devices are wireless, and some master devices have digital I/O and analog to digital conversion capabilities.  Some master devices also have on-board relays.  When you run out of relays, just plug in an XR expansion controller that is equipped with the kind of relays you need.

The product manual for various NCD master devices will refer to a group of 8 relays as a relay bank.  XR Expansion Modules count as 1, 2, 3, or 4 banks, depending on how many relays are on board (8, 16, 24, or 32).

As you continue to chain XR relay expansion controllers onto an XR expansion port, the total number of available relay banks will increase.  Each master device is only capable of controlling a fixed number of relay banks.  You should review the product manual of the master device you are using to determine the maximum number of supported relays banks.  This modular expansion approach will allow you to chain relays of all kinds to a single NCD device.

Linking XR Expansion Boards Together

XR Expansion Boards include a 6" ribbon cable with a keyed connector, used to link the expansion controller to an NCD device.  At the other end of the relay expansion board is an XR Pass-Through connector, allowing you to chain additional relay banks.

Low Cost 4-Channel 20A SPDT Expansion Relay Board

XR420HP
$132.00
Low Cost 4-Channel 20A SPDT Expansion Relay Board

RS-232 Controlled Relay Driver with Eight 5 or 10-Amp Relays

XR Series Expansion Relay Boards add Relays to ANY NCD Device with an XR Expansion Port!

RESOURCES:
Download Product Manual

Requires an NCD Device with an XR Expansion Port.  This NCD Master Device Determines the Command Set Required to Use this Expansion.

Onboard Relay Status LEDs
Screw Terminal Connectors
Available with SPST, SPDT, DPDT, High-Current and Signal Switching Relays
Power LEDs
2.1mm Power Connector
Optional Power Supply
Includes 6" XR Expansion Cable
 

(click pictures below to enlarge)

  MECHANICAL DRAWING

NAIS RELAYS

20-Amp 4-Relay Controller

Ratings AC DC
Voltage 240 24
Amperage 20 20
ALL RELAYS ARE HERMETICALLY SEALED

   Four 20-Amp SPDT Relays

 Stock #:  XR420HP

1-9   $114/ea
 (click above picture to enlarge)
  MECHANICAL DRAWING
NAIS RELAYS

20-Amp 8-Relay Controller

Ratings AC DC
Voltage 240 24
Amperage 20 20
ALL RELAYS ARE HERMETICALLY SEALED

  Eight 20-Amp SPDT Relays

Stock #: XR820HP

1-9   $174/ea
(click above picture to enlarge)
QUANTITY DISCOUNTS UP TO 100 PIECES ARE BUILT INTO OUR SHOPPING CART.  CHANGE YOUR ORDER QUANTITY TO SEE QUANTITY PRICING.
 
Scheduled Purchase Orders with Quantity Pricing Available!
We offer quantity pricing on scheduled purchase orders.  Get 10 Pieces per Month for 10 Months at the 100 Piece Price!!!
 
National Control Devices, LLC
Fast, Efficient, Friendly Service!
Since October, 1995
XR Expansion Relay Banks 

XR Relay Expansion Controllers add a large variety of relay switching capabilities to an existing NCD device!

Many NCD devices manufactured in 2005 and later are equipped with an XR Expansion Port.  This expansion port is used to add banks of external relays to an NCD device.  As we continue to develop new devices, a modular architecture will be implemented, offering the greatest amount of user flexibility.  Separating the brawn from the brains allows us to continue to develop more intelligent controllers without making existing hardware obsolete.

Our Line of XR Expansion Relay Controllers will add unlimited computer controlled switching potential, using a simple, modular upgrade path.  From low power signal switching to high current, high voltage control, we offer an XR Expansion controller that will meet your switching requirements.  Available with Single Pole Double Throw (SPDT) and Double Pole Double Throw (DPDT) relays, Open Collector Outputs (OC), and 8, 16, 24, or 32 outputs per expansion board.

Linking XR Expansion Boards Together

XR Expansion Boards include a 6" ribbon cable with a keyed connector, used to link the expansion controller to an NCD device.  At the other end of the relay expansion board is an XR Pass-Through connector, allowing you to chain additional relay banks.

Above:  A ProXR Series Controller Shown with Two XR Expansion Boards Attached.  Simply Chain the XR Expansion Modules, one after another, to meet your computer controlled switching requirements. (click picture to enlarge)

Controlling XR Expansion Banks

XR Expansion Boards have no on-board brains.  They are entirely reliant on the brains of a "master" device.  A master device is an NCD controller with an XR expansion port and a microprocessor of some kind.  Some master devices are wireless, and some master devices have digital I/O and analog to digital conversion capabilities.  Some master devices also have on-board relays.  When you run out of relays, just plug in an XR expansion controller that is equipped with the kind of relays you need.  Click here for a list of controllers that are equipped with an XR Expansion port (and are suitable master devices for XR Series Expansion Controllers).

The product manual for various NCD master devices will refer to a group of 8 relays as a relay bank.  XR Expansion Modules count as 1, 2, 3, or 4 banks, depending on how many relays are on board (8, 16, 24, or 32).

As you continue to chain XR relay expansion controllers onto an XR expansion port, the total number of available relay banks will increase.  Each master device is only capable of controlling a fixed number of relay banks.  You should review the product manual of the master device you are using to determine the maximum number of supported relays banks.  This modular expansion approach will allow you to chain relays of all kinds to a single NCD device.

Should you have any questions, please contact us.  We always welcome questions and we can help get you started, even if you have never used our products before.

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Low Cost 4-Channel 20A SPDT Expansion Relay Board

XR420HP
$132.00

This Item is Lead-Free RoHS Compliant <img border="0" src="http://www.controlanything.com/Merchant2/cart08a/rohs-Original.jpg">: RoHS Compliant