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The SeaI/O-450E offers 16 SPDT Form C relay outputs, enabling remote control of high-reliability switching applications via Modbus TCP over Ethernet. Built for robust industrial use with flexible power options and expansion capabilities..
The SeaI/O-450E provides 16 SPDT Form C (single-pole, double-throw) relays, making it ideal for controlling AC or DC circuits, switching between normally open and normally closed states. Designed for rugged environments, the 450E connects to your network via 10/100BaseT Ethernet, allowing integration into SCADA systems, PLCs, and building automation.
It supports industry-standard Modbus TCP protocol and can also be programmed using the SeaMAX API, which enables seamless operation with custom software under Windows and Linux environments.
The SeaI/O-450E simplifies deployment with removable 3.5mm screw terminals and supports remote access and testing using the Sealevel Modbus Connect iOS app. For large systems, you can connect up to 246 SeaI/O expansion modules to scale your I/O footprint without hassle.
Whether you're switching industrial relays or controlling complex automation, the SeaI/O-450E delivers reliable performance and broad compatibility.
16 SPDT Form C Relays – Versatile single-pole, double-throw contacts
Relay Switching Capacity – Ideal for industrial load control
Modbus TCP Interface – Seamless Ethernet (10/100BaseT) communication
SeaMAX Software Support – Windows and Linux compatibility
SeaLATCH-Ready – Compatible with secure SeaLATCH USB locking connectors
Remote I/O Monitoring – iOS app available for testing and access
Expandable I/O Network – Chain up to 246 additional SeaI/O N-series modules
Enclosure Design – Durable housing suitable for industrial environments
Flexible Power Input – Operates from 9–30VDC, 5.3W consumption
| Parameter | Details |
|---|---|
| Model Number | 450E-ROHS |
| Form Factor | Enclosure |
| Host Interface | Ethernet (10/100BaseT) |
| Communication Protocol | Modbus TCP |
| Number of Inputs | 0 |
| Number of Outputs | 16 |
| Output Type | SPDT Form C Relays |
| Power Requirement | 9–30 VDC @ 5.3W |
| Expansion Capability | Up to 246 SeaI/O N-Series Modules |
| Software Compatibility | SeaMAX API (Windows/Linux), Modbus TCP |
| iOS App Support | Sealevel Modbus Connect App |
| 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 5.1" (W) x 1.3" (H) |