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SeaI/O-450W is a high-performance wireless Modbus TCP device featuring 16 Form C (SPDT) relay outputs. Designed for industrial automation, it offers Wi-Fi-based control, supports both Windows and Linux, and ensures secure data transfer through advanced wireless encryption standards. Ideal for remote I/O expansion in harsh environments..
The SeaI/O-450W is equipped with 16 Form C relay outputs, suitable for controlling industrial devices that require SPDT switching logic. Communication is established wirelessly over Wi-Fi (2.4GHz, 802.11b/g), using Modbus TCP or Sealevel’s proprietary SeaMAX API.
The unit is engineered for robust, secure performance with industry-standard encryption protocols including WPA2-AES. Installation is simple via terminal block or modular connector, and it's designed for flexible mounting – whether on a DIN rail or tabletop.
Using the Sealevel Modbus Connect iOS app, you can remotely access and test I/O channels from the field, making it ideal for maintenance, development, and troubleshooting. For larger setups, you can daisy-chain up to 246 SeaI/O modules via pass-through connectors.
It draws power from a 9-30VDC source and operates reliably across a wide industrial temperature range, making it a smart choice for system integrators and engineers.
16 SPDT Form C (Single Pole Double Throw) relays
Supports Modbus TCP protocol over 802.11b/g Wi-Fi
WEP, WPA-TKIP, and WPA2-AES wireless encryption
SeaMAX API support for custom application integration
Compatible with Microsoft Windows and Linux systems
Removable screw terminals for easy wiring
DIN rail or table mount options available
Remote access with Sealevel Modbus Connect app (iOS)
Expandable with SeaI/O N-series modules up to 246 units
Product Name: SeaI/O-450W
Outputs: 16 SPDT Form C Relays
Inputs: None
Output Type: Form C Relays
Host Interface: Wi-Fi (802.11b/g)
Wireless Security: WEP, WPA-TKIP, WPA2-AES
Power Requirement: 9-30VDC @ 5.8W
Operating Temperature: 0°C to 70°C
Storage Temperature: -50°C to 105°C
Humidity: 10-90% RH, non-condensing
Dimensions: 7.5" (L) x 5.1" (W) x 1.3" (H)
Mounting: DIN rail or table mount
Enclosure: Included
Software Support: SeaMAX for Windows & Linux
Mobile App: Sealevel Modbus Connect (iOS)