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SEALEVEL | SeaIO

SeaI/O-440U-OEM

Now includes NABL Calibration Certificate.
Rs. 36703.00

The SeaI/O-440U-OEM provides 32 SPST Form A Reed relays for industrial control via USB, using Modbus RTU. It offers reliable dry contact switching for low-current devices, with easy wiring via removable screw terminals..

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  • Detail
  • Special Features
  • Specification

The SeaI/O-440U-OEM is a USB-based I/O module featuring 32 SPST Form A Reed relays, ideal for controlling low-current devices such as alarms, HVAC systems, and security controls. The Reed relays offer long-life switching and can handle DC loads up to 60VDC @ 500mA.

Communication is done through USB using Modbus RTU, making it easy to integrate with control systems and software. The module is powered via a 9–30VDC source, and removable screw terminals simplify wiring in industrial settings.

For added security, the SeaLATCH USB port ensures a metal-to-metal connection with USB cables, preventing accidental disconnections. The SeaI/O-440U-OEM supports up to 246 additional SeaI/O N-series modules for system expansion.

  • 32 SPST Form A Reed Relays – Switch up to 60VDC @ 500mA, perfect for low-current devices

  • Sealevel SeaMAX API – Supports integration with Windows and Linux systems

  • Sealevel SeaLATCH USB Port – Provides a secure connection with USB cables via metal thumbscrews

  • Power Input – Operates on 9-30VDC, with optional Sealevel power supply options

  • Removable Screw Terminals – Simplifies field wiring for easy installation

  • Expansion Capability – Supports up to 246 additional SeaI/O N-series modules for scaling I/O systems

  • USB Communication – Uses Modbus RTU over USB for easy integration with control systems

  • Board-Only Design – Compact and ready for custom enclosures

  • Included USB Cable – Comes with a 6' USB Type A to SeaLATCH USB Type B cable (Item# CA356)

Parameter Details
Model Number 440U-OEM
Form Factor Board Only
Host Interface USB
Communication Protocol Modbus RTU
Number of Inputs 0
Input Type N/A
Number of Outputs 32
Output Type Form A Reed Relays (60VDC @ 500mA)
Power Requirement 9–30 VDC @ 2.7W
Expansion Capability Supports up to 246 SeaI/O N-Series Modules
Software Compatibility SeaMAX API (Windows/Linux), Modbus RTU
iOS App Support N/A
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 Range 10–90% RH, Non-Condensing
Dimensions (inches) 7.5" (L) x 5.0" (W) x 0.8" (H)