Features
USB I/O Modules
13-12
USB-4761
8-ch Relay/Isolated DI USB Module
Specifications
Isolated Digital Input
Channels 8
Input Voltage Logic 0: 2 V max.
Logic 1: 10 V (30 V max.)
Isolation Protection 2,500 V
DC
Opto-Isolator Response 25 μs
Input Current 30 V
DC
/1 A
Relay Output
Channels 8
Relay Type SPDT (8 x Form C)
Contact Rating 250 V
AC
@ 3 A, or 24 V
DC
@ 3 A
Relay on Time 15 ms max.
Relay off Time 5 ms max.
Life Span
2 x 10^7
Resistance
Contact: 50 MΩ
Insulation: 1 GΩ min. (at 500 V
DC
)
General
Bus Type USB 1.1/2.0
I/O Connectors Onboard screw terminal
Dimensions (L x W x H) 132 x 80 x 32 mm
Power Consumption Typical: +5 V @ 60 mA
Max: +5 V @ 400 mA
Operating Temperature 0 ~ 60° C (32 ~ 140° F) (IEC 68-2-1, 2)
Storing Temperature -20 ~ 70° C (-4 ~ 158° F)
Storing Humidity 5 ~ 95 % RH, non-condensing (IEC 68-2-3)
Ordering Information
USB-4761 8-ch Relay/Isolated DI USB Module
Introduction
The USB-4761 is a relay actuator and isolated D/I module for USB bus. It provides 8 optically-isolated digital inputs with isolation protection of 2,500 V
DC
for collecting digital inputs
in noisy environments and 8 relay actuators for serving as on/off control devices or small power switches. For easy monitoring, each relay is equipped with one red LED to show its
on/off status. The USB-4761’s eight optically-isolated digital input channels are ideal for digital input in noisy environments or with floating potentials.
Rugged Protection
The USB-4761 digital input channels feature a rugged isolation protection for industrial, lab and machinery automation applications. It durably withstands voltage up to 2,500 V
DC
,
protecting your host system from any incidental harms. If connected to an external input source with surge-protection, the USB-4761 can offer up to a maximum of 2,000 V
DC
ESD
(Electrostatic Discharge) protection.
Compatible with 1.1/2.0
Portable
Bus-powered
8 relay output channels and 8 isolated digital input channels
LED indicators to show activated relays
8 Form C type relay output channels
High-voltage isolation on input channels (2,500 V
DC
)
High ESD protection (2,000 V
DC
)
Wide input range (5 ~ 30 V
DC
)
Interrupt handling capability
Wiring terminal on Modules
Suitable for DIN-rail mounting
Lockable USB cable for rigid connection
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
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