DUC01DD48500V – 24-48VDC VOLT. LEV. RLY OVER/UNDER 2-500V AC/DC
Carlo Gavazzi DUC01DD48500V single phase AC/DC true RMS voltage monitoring relay with two SPDT outputs and 2–500 V AC/DC monitoring range for industrial control applications.
SKU:DUC01DD48500VMPN:DUC01DD48500V
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Why Choose the Carlo Gavazzi DUC01DD48500V Voltage Monitoring Relay?
The Carlo Gavazzi DUC01DD48500V is a precise single-phase AC/DC true RMS voltage monitoring relay designed to provide reliable overvoltage and undervoltage protection for industrial control systems. As part of the advanced Carlo Gavazzi DUC01 monitoring relay series, it delivers accurate voltage supervision for automation panels, electrical installations and industrial equipment.
This monitoring relay continuously measures external AC or DC voltage and provides two SPDT relay outputs for independent alarm and control functions. Adjustable voltage thresholds, hysteresis and time delay settings allow flexible configuration for a wide range of industrial protection applications.
With a selectable monitoring range of 2–500 V AC/DC and a 24–48 V AC/DC supply, the Carlo Gavazzi DUC01DD48500V is ideal for industrial automation systems, machine control panels and electrical distribution equipment requiring dependable voltage monitoring.
Key Advantages
Single-phase AC/DC voltage monitoring relay for industrial protection applications.
True RMS voltage measurement for accurate monitoring performance.
Overvoltage and undervoltage monitoring functions for improved system reliability.
2–500 V AC/DC adjustable monitoring range for flexible system integration.
Two SPDT relay outputs for alarm and control applications.
Compact 45 mm DIN-rail housing for efficient electrical panel installation.
Key Features
Carlo Gavazzi DUC01DD48500V voltage monitoring relay.
Single-phase AC/DC true RMS voltage monitoring.
Overvoltage and undervoltage detection.
Adjustable voltage set points.
Adjustable hysteresis function.
Adjustable delay function from 0.1 to 30 s.
Two SPDT relay outputs.
LED indication for power, alarm and relay status.
DIN-rail mounting design for industrial control cabinets.
Reliable Voltage Monitoring for Industrial Systems
Monitoring relays such as the Carlo Gavazzi DUC01DD48500V provide essential protection by continuously supervising electrical voltage levels and activating relay outputs when configured limits are exceeded. This helps protect machinery, control equipment and industrial power systems from abnormal voltage conditions.
The DUC01 series is designed for automation engineers, panel builders and electrical specialists requiring accurate and flexible voltage monitoring solutions. Its compact DIN-rail format, adjustable settings and wide voltage range allow straightforward integration into modern industrial control systems.
Typical Applications
Industrial automation control panels.
Electrical distribution systems.
Machine protection circuits.
Motor control panels.
Power supply monitoring systems.
Industrial process control equipment.
Technical Specifications
Manufacturer
Carlo Gavazzi
Series
DUC01 Monitoring Relays
Model
DUC01DD48500V
Product type
AC/DC voltage monitoring relay
Measurement type
True RMS voltage monitoring
Monitoring function
Overvoltage and undervoltage
Voltage range
2–500 V AC/DC
Supply voltage
24–48 V AC/DC
Output type
2 × SPDT relay outputs
Time delay
Adjustable delay on alarm
Mounting type
Industrial DIN-rail mounting
Housing width
45 mm
Dimensions (H × W × D)
approx. 80 × 45 × 99.5 mm
Protection rating
IP20
Operating temperature
-20 to +60 °C
Frequently Asked Questions
What is the Carlo Gavazzi DUC01DD48500V used for?
The DUC01DD48500V is a voltage monitoring relay used to detect overvoltage and undervoltage conditions in industrial AC/DC systems.
What voltage range can this relay monitor?
The relay provides a selectable monitoring range from 2–500 V AC/DC.
What type of outputs does the DUC01DD48500V provide?
The relay provides two SPDT relay outputs for alarm and control applications.
What supply voltage does the relay require?
The Carlo Gavazzi DUC01DD48500V operates from a 24–48 V AC/DC supply.
How is the DUC01DD48500V installed?
The relay is designed for DIN-rail mounting inside industrial control panels and electrical cabinets.
Trusted by Industrial Automation Engineers
Carlo Gavazzi DUC series monitoring relays are widely used by automation engineers and panel builders to provide accurate voltage supervision, equipment protection and dependable industrial control.
Manufacturer
Carlo Gavazzi
Series
DUC01 Monitoring Relays
Model
DUC01DD48500V
Product type
AC/DC voltage monitoring relay
Measurement type
True RMS voltage monitoring
Monitoring function
Overvoltage and undervoltage
Voltage range
2–500 V AC/DC
Supply voltage
24–48 V AC/DC
Output type
2 × SPDT relay outputs
Time delay
Adjustable delay on alarm
Mounting type
Industrial DIN-rail mounting
Housing width
45 mm
Dimensions (H × W × D)
approx. 80 × 45 × 99.5 mm
Protection rating
IP20
Operating temperature
-20 to +60 °C
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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.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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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...