JSB281 USB 20 Amp 1 Relay SPDT Relay Module

The JSB-281 USB Relay module provides a single pole double throw (SPDT) relay for connection to user devices. Wire connection to the module relay contacts is with high quality screw type terminal blocks.
Single unit cost starts at USD$ 42.5
JSB281 USB 20 Amp 1 Relay SPDT Relay Module
* Single Pole Double Throw Relays
* 20 Amp rated
* Rated for AC and DC voltages
* High Quality Terminal Block Connections
* High-Speed USB 2.0 device, USB 1.1 compatible
* Type B USB connector high-retention design
* All needed power drawn from USB port, no external power required for card
* Custom 32 and 64 bit Microsoft Windows drivers provided
* Info for linux and other OS support under software tab
* Relay Ratings
AC Ratings: 20A @ 125VAC
Max Switch Voltage 110VDC 240VAC
Max Switched Power 3,850VA, 600W
Contact Resistance: 250mOhm Max
Relay Closing 15msec
Relay Release 8msec
* Self Powered from USB (high power Hub)
*Operating Temperature: -20 to +70 C
*Storage Temperature: -40 to +105 C
*Humidity 5% to 90% RH, without condensation
Most of our customers write their own program for controlling our devices. With our provided API's you can use any programming language that supports DLL so you do not have to learn a whole new language. We provide two types of DLL api, first is the older standard DLL with both mangled calls and "C" calls. The second is the managed Class Library that supports all the new managed languages. Any programming language that supports calls to Windows DLL can also be used to control the cards. The software interface is easy to use from Visual Basic, Visual C# Visual C++ via a standard windows DLL with sample source included. Linux driver support CD available. Each module has an unique serial number string which allows multiple USB boards to be controlled by the host USB controller as individual USB devices. Click on blue tabs above to view other information about the module.
JSB281-01 USB 1 Relay 20A Module Enter Qty
1-9 $42.5ea.
10- 49 $39.95ea.
50+ $36.5ea.
Add to Cart
JSB281-Linux Linux Support on Standard CD Enter Qty
1-9 $0ea.
10- 49 $0ea.
50+ $0ea.
Add to Cart
*Open Connector pdf file (printable)
JSB281 SPDT Pinout Dwg
*Open Mechanical pdf file (printable)
JSB281 SPDT Mechanical Dwg
*Open Interface pdf file (printable)
*Open Interface pdf file (printable)
jwRelay Software Downloads
*Download jwRelay CD V1.8 (zip file)
*Download jwRelay NI CVI Sample (zip file)
Labview Support
*Download Using Labview (pdf file)
Non-Windows OS Support (Linux and others)
*Download Using non-windows OS (pdf file)
Important readme about using dll with versions of windows .net Readme pdf
On some installations of Windows 7 and Windows 8 that are not configured to search the CD for drivers, it may show driver
not install and you need to do a manual install. If there is not yet a custom install under software downloads
you can download the pdf and zip of the generic install and copy your existing driver files from the CD, or do a manual install from PDF
Readme pdf
Generic install zip file
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Email: sales@j-works.com
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Page Last Updated May 4, 2015