Why Choose the Unitronics URD-04PW PWM Digital Output Module?
The Unitronics URD-04PW is a high-performance PWM digital output expansion module designed for the Unitronics UniStream Remote I/O platform. Built for industrial automation and machine control applications, this compact module provides four high-speed pulse width modulation outputs for precise control of actuators, valves, lighting systems, motor drivers and other automation devices.
As part of the UniStream Remote I/O family, the URD-04PW enables distributed I/O deployment while maintaining seamless communication with UniStream controllers. Its slim DIN rail design helps maximise panel space efficiency, making it ideal for OEM machine builders and industrial control system integrators.
Featuring 4 PWM push-pull digital outputs with frequencies from 1 to 5 kHz, the URD-04PW delivers accurate output control for applications requiring variable duty cycle operation. Its robust industrial design and extended temperature rating ensure dependable performance in demanding environments.
Key Advantages
Compact 4-channel PWM output module for industrial automation.
1-5 kHz pulse width modulation outputs for precise control applications.
Push-pull transistor outputs with up to 0.5 A per channel.
Designed for the Unitronics UniStream Remote I/O platform.
Space-saving 12 mm DIN rail module.
Extended temperature range for harsh industrial environments.
Key Features
Unitronics UniStream Remote I/O series.
4 PWM digital outputs.
24 VDC output voltage.
1-5 kHz PWM frequency range.
0.0-100% duty cycle control.
Short-circuit protection.
LED output status indicators.
DIN rail mounting design.
Precise PWM Control for Industrial Automation
PWM output modules allow automation systems to control devices by varying output duty cycle while maintaining a constant voltage level. This enables accurate control of speed, intensity, flow rates and positioning across a wide range of industrial applications.
The URD-04PW is particularly suited to machine builders and industrial automation engineers requiring reliable pulse outputs for advanced process control and equipment automation. Its integration with the UniStream platform ensures straightforward configuration and system scalability.
Typical Applications
Industrial machine automation.
Motor speed and drive control.
Valve and actuator positioning.
Process control systems.
Packaging and production machinery.
OEM automation equipment.
Technical Specifications
Current
0.5 A
Voltage
32 V
IP Rating
IP20
Series
UniStream Remote I/O
Product type
PWM digital output module
Number of outputs
4
Output type
Push-pull transistor outputs
Output voltage
24 VDC
Output current
0.5 A per channel, 2 A per module maximum
PWM frequency
1-5 kHz ±0.5%
Duty cycle
0-100%
Supply voltage
15-32 VDC (24 VDC nominal)
Protection rating
IP20
Mounting type
DIN rail mounting
Operating temperature
-40°C to +70°C
Dimensions (H × W × D)
approx. 70 × 12 × 109 mm
Weight
approx. 0.06 kg
Frequently Asked Questions
What is the Unitronics URD-04PW used for?
The URD-04PW provides four PWM digital outputs for controlling industrial devices requiring variable duty cycle signals.
How many outputs does the module provide?
The module features 4 PWM digital outputs with push-pull transistor output technology.
What PWM frequency range is supported?
The URD-04PW supports pulse width modulation frequencies from 1 kHz to 5 kHz.
What output current can each channel deliver?
Each output channel can provide up to 0.5 A, with a maximum module output current of 2 A.
Which controllers are compatible with this module?
The URD-04PW is designed for use with the Unitronics UniStream Remote I/O platform and compatible UniStream controllers.
Trusted by Automation Engineers Worldwide
Unitronics UniStream Remote I/O modules are widely deployed in industrial automation systems requiring reliable signal control, flexible expansion and seamless integration with modern machine architectures.
Current
0.5 A
Voltage
32 V
IP Rating
IP20
Series
UniStream Remote I/O
Product type
PWM digital output module
Number of outputs
4
Output type
Push-pull transistor outputs
Output voltage
24 VDC
Output current
0.5 A per channel, 2 A per module maximum
PWM frequency
1-5 kHz ±0.5%
Duty cycle
0-100%
Supply voltage
15-32 VDC (24 VDC nominal)
Protection rating
IP20
Mounting type
DIN rail mounting
Operating temperature
-40°C to +70°C
Dimensions (H × W × D)
approx. 70 × 12 × 109 mm
Weight
approx. 0.06 kg
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...