Control and monitor 8 optically isolated inputs and 8 (SPDT) high-current Form C relay outputs via any USB connection with the SeaI/O-520U. Inputs can range from 5-30VDC and optical isolation protects the computer and other sensitive equipment from voltage transients and ground loops that are common in industrial environments. The high-current Form C relays can switch up to 6A loads at 250VAC and up to 5A at 60VDC. Form C relays can be wired for either normally open or normally closed operation. The SeaI/O-520U is powered from your 9-30VDC source, or select from a variety of Sealevel power supply options.
Communicate with the SeaI/O-520U using industry standard Modbus TCP protocol or use the Sealevel SeaMAX API software libraries from your application program. Sealevel's SeaMAX software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems.
Expand your I/O network with SeaI/O N-series products. SeaI/O modules are available with Reed and Form C relays, optically isolated inputs, TTL interfaces, A/D and D/A functionality. Up to 246 additional expansion modules can be added using convenient pass-through connectors.
The SeaI/O-520U integrates Sealevel's SeaLATCH locking USB port, which is fully compatible with standard USB cables. When used with the included USB cable with a SeaLATCH USB type B connector, the metal thumbscrew provides a secure connection to the device and prevents accidental cable disconnection.
Get a jumpstart on your digital I/O development with The Digital I/O Handbook that will provide helpful information that you will use again and again. Check out Chapter 1 for an overview of logic principles.
Communicate with the SeaI/O-520U using industry standard Modbus TCP protocol or use the Sealevel SeaMAX API software libraries from your application program. Sealevel's SeaMAX software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems.
Expand your I/O network with SeaI/O N-series products. SeaI/O modules are available with Reed and Form C relays, optically isolated inputs, TTL interfaces, A/D and D/A functionality. Up to 246 additional expansion modules can be added using convenient pass-through connectors.
The SeaI/O-520U integrates Sealevel's SeaLATCH locking USB port, which is fully compatible with standard USB cables. When used with the included USB cable with a SeaLATCH USB type B connector, the metal thumbscrew provides a secure connection to the device and prevents accidental cable disconnection.
Get a jumpstart on your digital I/O development with The Digital I/O Handbook that will provide helpful information that you will use again and again. Check out Chapter 1 for an overview of logic principles.
| Host Interface | USB |
|---|---|
| # of Ports | 8/8 |
| Brand/Family | SeaI/O |
| Digital I/O | Isolated Inputs, Form C Relay Outputs |
| Number of Inputs/Outputs | 8 Inputs 8 Outputs |
| USB Specification | 1.1 Compliant 2.0 Compatible |
| Input Isolation | 300V |
| Input Range | 5-30 VDC |
| Contact Voltage | 250VAC 60VDC |
| Contact Current AC | 6A max. |
| Contact Current DC | <30 VDC @ 5A max. >30 VDC @ 500mA max. |
| Switching Capacity | 5 VDC @ 100mA min. |
| Contact Operate Time | 10ms max. |
| Contact Release Time | 10ms max. |
| Power Requirement | 9-30 VDC @ 3.8W |
| Operating Temperature | 0 - +70C |
| Extended Temperature | Call for Options |
| Storage Temperature | -50 - +105C |
| Humidity Range | 10 - 90% Relative Humidity, Non-Condensing |
| Dimensions | 7.5 (L) x 5.1 (W) x 1.3 (H) |
• USB Modbus RTU interface
• 8 optically isolated inputs
• 8 SPDT high-current Form C relays
• Removable screw terminals simplify field wiring
• Input power via terminal block or modular connector
• Sealevel's SeaLATCH locking USB port provides secure connection with SeaLATCH USB cables via metal thumbscrews
• DIN rail or table mount
• Sealevel software supports Windows 2000/XP/Vista operating systems
• Includes 6' USB type A to SeaLATCH USB type B device cable (Item# CA356)
• 8 optically isolated inputs
• 8 SPDT high-current Form C relays
• Removable screw terminals simplify field wiring
• Input power via terminal block or modular connector
• Sealevel's SeaLATCH locking USB port provides secure connection with SeaLATCH USB cables via metal thumbscrews
• DIN rail or table mount
• Sealevel software supports Windows 2000/XP/Vista operating systems
• Includes 6' USB type A to SeaLATCH USB type B device cable (Item# CA356)
![]() Part#CA332 SeaLATCH Locking USB Device Cable $9.95 |
![]() Part#CA355 SeaLATCH Locking USB Device Cable $9.95 |
![]() Part#CA239 SeaI/O RS-485 Interconnect $2.95 |
![]() Part#TB-SP9-KT Spring Clamp Terminal Block Kit $29.95 |
![]() Part#KT122 SeaI/O Expansion $8.95 |
![]() Part#KT123 Flush Mount Bracket $17.95 |
![]() Part#KT125 Universal Mounting Bracket $69.95 |
![]() Part#KT130 Side Mount Bracket $32.95 |
![]() Part#DR104 DIN Rail Mounting Clips $9.95 |
![]() Part#TR109 Wall Mount Power Supply $14.95 |
![]() Part#TR112 Wall Mount Power Supply Call For Price |
![]() Part#PS105 165 Watt Power Supply $229.00 |
![]() Part#HUB7M 7-Port USB 2.0 Hub $269.00 |
![]() Part#270U SeaI/O-270U $299.00 |
![]() Part#RK1U 1U 19 In. Rack Tray $39.95 |
![]() Part#RK2U 2U 19 In. Rack Tray $59.95 |
![]() Part#RK-CLAMP Rackmount Clamp $19.95 |
![]() Part#410N SeaI/O-410N $269.00 |
![]() Part#420N SeaI/O-420N $259.00 |
![]() Part#430N SeaI/O-430N $229.00 |
![]() Part#440N SeaI/O-440N $309.00 |
![]() Part#450N SeaI/O-450N $249.00 |
![]() Part#462N SeaI/O-462N $239.00 |
![]() Part#463N SeaI/O-463N $249.00 |
![]() Part#470N SeaI/O-470N $429.00 |
![]() Part#520N SeaI/O-520N $239.00 |
![]() Part#530N SeaI/O-530N $349.00 |
![]() Part#540N SeaI/O-540N $369.00 |
![]() Part#570N SeaI/O-570N $399.00 |
![]() Part#REF101 The Digital I/O Handbook $19.95 |
![]() Part#REF102 The Digital I/O Handbook (*Free) $0.01 |




































