Why Choose the Carlo Gavazzi DUB03CW24 Voltage Monitoring Relay?
The Carlo Gavazzi DUB03CW24 is a precise and reliable single-phase AC/DC voltage monitoring relay designed to protect electrical systems by detecting overvoltage and undervoltage conditions. As part of the advanced Carlo Gavazzi DUB03 monitoring relay series, it provides dependable voltage supervision for industrial automation, electrical control panels and machinery protection applications.
This monitoring relay continuously monitors its own supply voltage and switches its relay output when the measured voltage moves outside the configured limits. With true RMS measurement, selectable measuring ranges, adjustable voltage thresholds, hysteresis control and a built-in latch function, it provides flexible protection for demanding industrial environments.
With a 12–240 V AC/DC monitoring range, a self-powered design and a SPDT relay output, the DUB03CW24 is ideal for applications requiring reliable overvoltage and undervoltage monitoring in industrial control systems.
Key Advantages
Compact single-phase AC/DC voltage monitoring relay for industrial applications.
Detects overvoltage, undervoltage and combined over/undervoltage conditions.
12–240 V AC/DC monitoring range supports multiple industrial voltage systems.
SPDT relay output provides flexible alarm and control integration.
Compact 22.5 mm DIN-rail housing saves valuable panel space.
Key Features
Carlo Gavazzi DUB03 monitoring relay series.
Single-phase AC/DC voltage monitoring.
Overvoltage and undervoltage monitoring functions.
12–240 V AC/DC voltage range.
Monitors its own power supply voltage.
1 × SPDT relay output.
True RMS AC/DC measurement.
Selectable measuring range using DIP switches.
Adjustable voltage threshold and hysteresis.
Built-in latch function maintains relay output state when required.
LED status indication.
Reliable Voltage Monitoring for Industrial Systems
Voltage monitoring relays such as the Carlo Gavazzi DUB03CW24 provide continuous supervision of electrical supplies to help protect machinery, automation equipment and control systems. By detecting abnormal voltage conditions, they can trigger alarms or switching actions before faults affect operation.
The DUB03 series is designed for industrial engineers and panel builders requiring accurate and flexible voltage monitoring solutions. Its true RMS measurement, adjustable settings and relay output allow straightforward integration into modern electrical installations.
Typical Applications
Industrial automation control panels.
Electrical protection systems.
Machine control circuits.
Motor and equipment protection.
Power supply monitoring applications.
Industrial distribution systems.
Technical Specifications
Manufacturer
Carlo Gavazzi
Series
DUB03
Model
DUB03CW24
Product type
Single-phase AC/DC voltage monitoring relay
Monitoring function
Overvoltage and undervoltage
Voltage monitoring range
12–240 V AC/DC
Nominal voltage ranges
12–24 V DC, 38–58 V DC, 24–240 V AC/DC
Supply voltage
Self-powered
Output
1 relay output
Output configuration
SPDT relay
Contact rating
8 A at 250 V AC
Measurement type
True RMS
Time delay
Delay on alarm
Mounting type
Industrial DIN-rail mounting
Housing width
22.5 mm
Protection rating
IP20
Operating temperature
-20 to +60 °C
Dimensions (W × H × D)
approx. 22.5 × 80 × 99.5 mm
Frequently Asked Questions
What is the Carlo Gavazzi DUB03CW24 used for?
The DUB03CW24 is used to monitor single-phase AC/DC voltage supplies and provide relay switching when overvoltage or undervoltage conditions are detected.
What voltage range does the DUB03CW24 monitor?
The relay monitors voltage within the 12–240 V AC/DC range.
What type of output does the DUB03CW24 provide?
The relay provides a SPDT relay output for alarm and control applications.
Does the DUB03CW24 require a separate power supply?
No, the relay is self-powered and monitors its own supply voltage.
How is the Carlo Gavazzi DUB03CW24 installed?
The relay is designed for installation inside electrical control panels using a compact 22.5 mm DIN-rail mounting housing.
Trusted by Industrial Automation Engineers
Carlo Gavazzi DUB03 monitoring relays are widely used in industrial control applications to provide accurate voltage supervision, fault detection and reliable protection for electrical systems.
Manufacturer
Carlo Gavazzi
Series
DUB03
Model
DUB03CW24
Product type
Single-phase AC/DC voltage monitoring relay
Monitoring function
Overvoltage and undervoltage
Voltage monitoring range
12–240 V AC/DC
Nominal voltage ranges
12–24 V DC, 38–58 V DC, 24–240 V AC/DC
Supply voltage
Self-powered
Output
1 relay output
Output configuration
SPDT relay
Contact rating
8 A at 250 V AC
Measurement type
True RMS
Time delay
Delay on alarm
Mounting type
Industrial DIN-rail mounting
Housing width
22.5 mm
Protection rating
IP20
Operating temperature
-20 to +60 °C
Dimensions (W × H × D)
approx. 22.5 × 80 × 99.5 mm
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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Customers supported
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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...