420N

Expansion
420N
420N - 16 Optically Isolated Digital Input/8 Form C Relay Output SeaI/O Expansion Module (SeaI/O-420N)
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.
From
£219

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420N-ROHS
16 Optically Isolated Digital Input/8 Form C Relay Output SeaI/O Expansion Module
No stock
£219
Peripheral information
Stock
Lead time*
1 off price**
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The Digital I/O Handbook - A Practical Guide to Industrial Input and Output Applications (Free with Qualifying Sealevel Digital I/O Products)
1 in stock
90-265V AC to 5V/12V DC 165W Power Supply - (Requires Power Cord)
No stock
£269
Universal Mounting Bracket (VESA) - for SeaI/O, Relio R1000 Systems
No stock
£83
The Digital I/O Handbook - A Practical Guide to Industrial Input and Output Applications
No stock
£24
Flush Mount Bracket Kit - for SeaI/O, Relio R1000 Systems
No stock
£19
DIN Rail Mounting Clips - for SeaI/O, R1100, 4103
No stock
£11
All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the 420N 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)

420N overview

  • Manufacturer : Sealevel Systems
  • Interface : RS-485 I/O Expansion Module
  • Total Channels : 24
  • Inputs : 16 x Optically Isolated Digital Inputs
  • Input Range : 5V to 30V DC
  • Input Isolation : 300V
  • Outputs : 8 x Form C Relay (SPDT) Outputs
  • Max. Contact Voltage : 60V DC max
  • Max. Contact Current : 2A max
  • Enclosure : Housed in rugged, attractive steel enclosure
  • Connector : Removable screw terminals simplify field wiring
  • Accessories : Includes KT122 expansion and strap kit
  • Other Features : Input power via terminal block or modular connector
  • Quick connection to SeaI/O devices using RJ45 connector or removable screw terminals
  • DIN rail or table mount
  • Dimensions : W7.5" x H1.3" x D5.1"
  • Power Requirement : 9V to 30V DC @ 2.0W (TR108 24V DC PSU available)
  • Operating Temperature : 0°C to +70°C (extended temperature options available)
  • Software Support : SeaMAX supports Linux, Windows 2000, XP, Vista and Windows 7
  • Warranty : Lifetime Warranty
The SeaI/O-420N adds 16 optically isolated inputs and 8 Form C relay outputs to your SeaI/O network. Compatible with all SeaI/O base units (Ethernet, USB, RS-485, RS-232), the SeaI/O-420N connects easily using an RS-485 input.

Cabling is accomplished via the units RJ45 connector or removable screw terminals. RS-485 line conditioning allows easy installation of termination and pull-up/pull-down resistors.

All SeaI/O N-series expansion modules ship with an expansion and strap kit that includes four metal straps, four #4-40 screws, and a 5” RJ45 RS-485 interconnect cable.

The metal straps allow you to connect multiple SeaI/O modules together in a "stack". The interconnect cable can be used to connect SeaI/O modules together via the RJ45 pass-through connectors, providing an easy method to cascade RS-485 signals and power from one module to the next.

Alternatively, use inexpensive CAT5 cabling to pass data signals between SeaI/O modules to create a distributed network.
 
OPC-UA
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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