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Features
USB-4761
8-ch Relay and 8-ch Isolated
Digital Input USB Module
Specifications
Isolated Digital Input
Channels 8
Input Voltage Logic 0: 2 V max.
Logic 1: 5 V min. (30 V max.)
Isolation Protection 2,500 V
DC
Opto-Isolator Response 25 μs
Relay Output
Contact Rating 0.25 A @ 250 V
AC
, 2 A @ 30 V
DC
Max. Switching Power 62.5 VA, 60 W
Max. Switching Voltage 250 V
AC
, 220 V
DC
Max. Switching Current 5 A
Min. Switching Voltage 100 μV
Operate/Release Time typ. 3 / 2 ms, max. 5 / 4 ms
Resistance Contact: 50 m: max. @ 10 mA/20 mV
Insulation: 1 G:min. @ 500 V
DC
Life Expectancy 5 x 10
7
cycles typ. @ 10 mA/12 V
(Electrical) 2 x 10
5
cycles typ. @ 2000 mA/30 V
General
Bus Type USB 1.1/2.0
I/O Connector Onboard screw terminal
Dimensions (L x W x H) 132 x 80 x 32 mm (5.2" x 3.15" x 1.26")
Power Consumption Typical: 5 V @ 60 mA
Max.: 5 V @ 400 mA
Operating Temperature 0 ~ 60°C (32 ~ 140°F)
Storage Temperature -20 ~ 70°C (-4 ~ 158°F)
Storage Humidity 5 ~ 95 % RH, non-condensing
Ordering Information
USB-4761-AE 8-ch Relay/Isolated Digital Input USB Module
Accessories
1960004544 Wallmount Bracket
1960005788 VESA Mount Bracket
Introduction
The USB-4761 is a relay actuator and isolated digital input module with USB interface. It provides 8 optically-isolated digital inputs with isolation protection of 2,500 V
DC
for collecting
digital signals 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 green
LED to show its on/off status.
Rugged Protection
The USB-4761's digital input channels feature a rugged isolation protection for industrial, lab and machinery automation applications. They durably withstand voltages 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 USB 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
Detachable screw terminal on modules
Suitable for DIN-rail mounting
One lockable USB cable for secure connection included
RoHS
COMPLIANT
2002/95/EC
21-13
DAQ Boards
19
Signal Conditioning
20
Industrial USB I/O
Modules
21
(84 pages)
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