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URD-0004RH – Unitronics RO4,24VDC/AC,2A,10R
Unitronics URD-0004RH UniStream Remote I/O module featuring 4 relay outputs rated up to 2A for industrial automation, machine control and distributed Ethernet I/O applications.
£107.10
Why Choose the Unitronics URD-0004RH Remote I/O Relay Output Module?
The Unitronics URD-0004RH is a robust 4-channel relay output remote I/O module designed for industrial automation, machine control and distributed I/O applications. As part of the advanced Unitronics UniStream Remote I/O series, it provides reliable relay switching for controlling motors, contactors, solenoids, valves, alarms and other field devices across Ethernet-based automation systems.
Engineered for demanding industrial environments, the URD-0004RH combines compact dimensions with dependable relay technology, making it ideal for applications requiring electrical isolation between the control system and field equipment. Its DIN rail-mounted design allows straightforward integration into UniStream Remote I/O installations while supporting scalable control architectures.
Featuring 4 relay outputs rated up to 2A, the URD-0004RH enables reliable switching of both AC and DC loads. The module includes integrated status LEDs for diagnostics and supports operation across an extended temperature range, making it suitable for harsh industrial environments.
Key Advantages
- Compact 4-channel relay output remote I/O module.
- 4 SPST relay outputs for versatile load switching.
- Up to 2A switching capacity for industrial devices.
- Suitable for both AC and DC control circuits.
- Integrated status LEDs for diagnostics and monitoring.
- Designed for UniStream Ethernet Remote I/O systems.
Key Features
- Unitronics UniStream Remote I/O series.
- 4 relay output channels.
- SPST normally open relay contacts.
- Maximum switching current of 2A.
- Supports loads up to 240VAC.
- DIN rail mounting design.
- 10-pin removable terminal block connection.
- Industrial extended-temperature operation.
Reliable Relay Control for Industrial Automation
The Unitronics URD-0004RH provides dependable relay switching for industrial control systems where electrical isolation and robust load handling are required. Relay outputs are ideal for controlling contactors, pilot lamps, alarms and other field devices operating at different voltages than the control system.
When integrated into a UniStream Remote I/O network, the module allows distributed control of equipment across machinery and plant installations while maintaining reliable communication with the central controller over Ethernet. Its compact design helps maximise cabinet space efficiency without sacrificing functionality.
Typical Applications
- Industrial machine automation.
- Motor starter and contactor control.
- Alarm and notification systems.
- Process control equipment.
- Building automation systems.
- Distributed Ethernet I/O networks.
Technical Specifications
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| Signal / Input Range | 24 V DC | |
|---|---|---|
| Product Series | UniStream Remote I/O (Uni-I/O) | |
| Device Type | Digital I/O Module | |
| Analogue I/O | 2 AI / 0 AO | |
| Signal Type / Function | Relay | |
| Current | 2 A | |
| IP Rating | IP20 | |
| Series | UniStream Remote I/O | |
| Product type | Relay output remote I/O module | |
| Outputs | 4 relay outputs | |
| Relay type | SPST Form A (Normally Open) | |
| Maximum output current | 2A per output | |
| Maximum output voltage | 240VAC / 32VDC | |
| Operating voltage | 24VDC nominal (22-26VDC) | |
| Connection | 10-pin removable terminal block | |
| Mounting type | DIN rail | |
| Protection rating | IP20 / NEMA 1 | |
| Dimensions (H × W × D) | 70 × 12 × 99 mm | |
| Weight | Approx. 58 g | |
| Operating temperature | -40°C to +70°C |
Frequently Asked Questions
What is the Unitronics URD-0004RH used for?
The URD-0004RH provides four relay outputs for switching industrial loads within UniStream Remote I/O automation systems.
How many outputs does the module provide?
The module provides 4 relay output channels.
What is the maximum switching current?
Each relay output is rated for up to 2A under specified operating conditions.
Can the module switch AC and DC loads?
Yes, the relay outputs can switch both AC and DC loads within their rated voltage and current specifications.
Where is the URD-0004RH typically installed?
The module is designed for DIN rail mounting within UniStream Remote I/O systems and industrial control panels.
Trusted by Automation Engineers Worldwide
Unitronics UniStream Remote I/O modules are widely used by machine builders and industrial automation professionals to deliver reliable distributed control, flexible system expansion and dependable field connectivity.
