SeaDAC Lite USB Adapters  •  SeaI/O USB Adapters  •  USB
8112 Relay Output Adapter
8112 - USB to 4 Isolated Digital Input/4 Form C Relay Output Adapter (SeaDAC Lite PLC-8)
CE is a mandatory standard for products on the market in the European Economic Area. By CE marking a product, the manufacturer ensures that the item meets the essential safety requirements set out in the applicable CE directive.
This product fully adheres to the Restriction of Hazardous Substances Directive 2002/95/EC, RoHS for short.  The directive covers the restriction of use of certain hazardous substances in electrical and electronic equipment and was adopted in February 2003 by the European Union.
This product has a lifetime warranty against product failure (excludes user or enviromental damage).
The Federal Communications Commission (FCC) is an independent agency of the United States government that sets standards and governs the testing of conducted and radiated emissions such as EMI.

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USB to 4 Isolated Digital Input/4 Form C Relay Output Adapter
2 in stock
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Peripheral information
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All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the 8112 to UK Mainland on orders over £150 (exc. VAT and delivery) when purchasing online - excludes Northern Ireland, Isle of Man, Isle of Wight, Scottish Islands and the Channel Islands.

* Lead time is indicative and is subject to change at time of ordering. Next business day delivery on in-stock products only (when ordered before 3pm).
** Contact us for quantity or project pricing.
† Additional delivery charge may be incurred for certain postcodes (calculated at checkout)

8112 overview

  • Manufacturer : Sealevel Systems
  • Host Interface : USB
  • Total Channels : 8  
  • Inputs : 4 x Isolated Digital Inputs
  • Input Range : 5-30V DC
  • Input Isolation : 300V DC (optical)
  • Outputs : 4 x Form C Relay (SPDT) Outputs
  • Max. Contact Voltage : 60V DC: 250V AC max. 
  • Max. Contact Current DC : <30V DC @ 5A max.; >30V DC @ 700mA max.
  • Max. Contact Current AC : 6A max. 
  • Enclosure : Housed in rugged, attractive plastic enclosure
  • Connector : Removable 3.5mm screw terminal blocks simplify field wiring
  • Optional removable spring-clamp terminal blocks available
  • Cable : Includes CA356 - 6’ USB type A to SeaLATCH USB type B device cable
  • Other Features : Status LEDs display serial transmit and receive activity
  • Patent-pending SeaLATCH USB port provides locking connection with SeaLATCH USB cables via metal thumbscrews
  • Powered by USB connection
  • Dimensions (WxHxD) : 3.4" x 1.3" x 4.3"
  • Operating Temperature : 0 to +70C (extended temperature options available)
  • Software Support : SeaMAX supports Linux, Windows 2000, XP, Vista and Windows 7
  • Warranty : Lifetime Warranty
Control and monitor 4 optically isolated inputs and 4 Form C (SPDT) relay outputs via any USB connection with the 8112. Inputs can range from 5-30VDC, while the high current Form C relays can switch up to 6A loads at 250VAC and up to 5A at 60VDC.

The Form C relays can be wired for either normally open or normally closed operation. Each Form C relay has a discrete common and each pair of inputs share a common. Status LEDs display I/O activity and field wiring is simplified via 3.5mm removable terminal blocks.

The SeaMAX software suite supports the SeaDAC Lite family and is designed to work with third party applications via the SeaMAX API. Sealevel's SeaMAX software drivers and utilities make installation and operation easy using Linux and Windows operating systems.

The 8112 integrates a patent-pending SeaLATCH USB port, which is fully compatible with standard USB cables. When used with the included USB cable with a SeaLATCH USB type B connector, the metal thumbscrew provides a secure connection to the device and prevents accidental cable disconnection.

SeaDAC Lite modules are housed in a rugged, attractive plastic enclosure ideal for mounting on walls, under counters, or inside panels. The 8112 is USB bus powered, so no external power supply is needed. Standard operating temperature range of SeaDAC modules is 0C to 70C and extended temperature range (-40C to +85C) is optional.
OPC-UA is supported by many of our communication and I/O products. If you are interested but not quite sure how to implement OPC-UA into your factory then get in touch.
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