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SEALEVEL | SeaIO

SeaI/O-420E

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NABL-Accredited Calibration | Available on Request
Rs. 41148.00

The SeaI/O-420E is an industrial-grade I/O module featuring 16 optically isolated inputs and 8 Form C relays. It connects via 10/100BaseT Ethernet and supports Modbus TCP communication, enabling reliable remote monitoring and control in automation, security, and industrial environments..

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  • Special Features
  • Specification

The SeaI/O-420E is a network-based digital I/O module designed for Ethernet-enabled control and automation. It provides 16 optically isolated inputs for safe connection to sensors, switches, or field logic signals, and 8 Form C (SPDT) relay outputs capable of switching up to 60VDC at 2A—suitable for controlling low-voltage actuators, alarms, and process equipment.

This module communicates using Modbus TCP, making it compatible with virtually all modern PLCs, SCADA systems, and industrial PCs. It can also be integrated via the SeaMAX API for custom Windows or Linux software applications.

Inputs and outputs are clearly grouped and accessed through removable 3.5mm terminal blocks for fast, organized field wiring. The unit is powered through a 9–30VDC external source, making it suitable for a wide range of deployment environments.

With the Sealevel Modbus Connect iOS app, engineers can remotely monitor, test, and troubleshoot devices during development or in the field.

  • 16 Optically Isolated Inputs (5–30VDC) – Protects against voltage spikes and noise

  • 8 Form C Relays (SPDT) – Switch up to 60VDC @ 2A

  • Ethernet Connectivity (10/100BaseT) – Modbus TCP protocol support

  • Compatible with SeaMAX API – For Windows and Linux applications

  • Flexible 9–30VDC Power Input – Field-ready with low power draw

  • Field-Expandable – Connect up to 246 additional SeaI/O N-series modules

  • Mobile Access – iOS Modbus Connect app for remote I/O testing and diagnostics

  • Removable Terminal Blocks – Streamlines field wiring and maintenance

  • Enclosed Design – Rugged, ready for control panels or equipment racks

Parameter Details
Model Number 420E-ROHS
Host Interface Ethernet (10/100BaseT)
Communication Protocol Modbus TCP
Number of Inputs 16
Input Type Optically Isolated (5–30VDC)
Number of Outputs 8
Output Type Form C (SPDT) Relays (Up to 60VDC @ 2A)
Enclosure Type Included
Power Requirement 9–30 VDC @ 3.5W
Expansion Capability Supports up to 246 SeaI/O N-Series Modules
Software Compatibility SeaMAX API (Windows/Linux), Modbus TCP
iOS App Support Sealevel Modbus Connect
Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -50°C to 105°C (-58°F to 221°F)
Humidity 10–90% RH, Non-Condensing
Dimensions (inches) 7.5" (L) x 5.1" (W) x 1.3" (H)