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DUA52C748 – DC UNDER VOLTAGE RELAY
Carlo Gavazzi DUA52C748 DC undervoltage monitoring relay designed for 48 V DC supply monitoring and fault detection in industrial control systems.
£71.79
Why Choose the Carlo Gavazzi DUA52C748 DC Undervoltage Monitoring Relay?
The Carlo Gavazzi DUA52C748 is a compact and reliable DC undervoltage monitoring relay designed to protect electrical systems by continuously monitoring DC supply voltage and detecting undervoltage conditions. As part of the trusted Carlo Gavazzi DUA52 monitoring relay series, it provides dependable voltage supervision for battery systems, industrial automation and electrical control applications.
This monitoring relay measures its own DC power supply and switches its relay output when the monitored voltage falls below the configured threshold. Its adjustable hysteresis, LED status indication and compact DIN-rail housing make it suitable for reliable protection of industrial DC systems.
With a 38–58 V DC monitoring range, a self-powered design and a SPDT relay output, the DUA52C748 is ideal for monitoring 48 V DC systems including battery supplies, generator backup batteries and industrial control equipment.
Key Advantages
- Compact DC undervoltage monitoring relay for industrial applications.
- 38–58 V DC monitoring range suitable for 48 V DC systems.
- Self-powered monitoring design measures its own supply voltage.
- SPDT relay output provides flexible alarm and control integration.
- Adjustable 4–50% hysteresis helps prevent unwanted relay switching.
- Compact 17.5 mm DIN-rail housing saves space inside control panels.
Key Features
- Carlo Gavazzi DUA52 monitoring relay series.
- Single-phase DC undervoltage monitoring.
- 38–58 V DC voltage monitoring range.
- Monitors its own power supply voltage.
- 1 × SPDT relay output.
- Adjustable hysteresis from 4–50%.
- LED indication for power supply and relay status.
- Mini DIN-rail mounting design.
Reliable DC Voltage Protection for Industrial Systems
Voltage monitoring relays such as the Carlo Gavazzi DUA52C748 provide continuous supervision of DC supplies to help protect automation equipment, battery systems and electrical control circuits. By detecting undervoltage conditions, they can trigger alarms or control actions before system performance is affected.
The DUA52 series is designed for industrial engineers and panel builders requiring compact and dependable DC voltage monitoring solutions. Its self-powered operation, adjustable hysteresis and relay output allow straightforward integration into electrical control systems.
Typical Applications
- 48 V DC battery monitoring systems.
- Diesel generator backup battery protection.
- Industrial automation control panels.
- DC power supply monitoring.
- Machine control systems.
- Electrical protection circuits.
Technical Specifications
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| Mounting Type | DIN rail | |
|---|---|---|
| Monitoring Function | Voltage | |
| Monitored Supply | DC | |
| Time Delay | Adjustable | |
| Switching Current (A) | 5 A | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | DUA52 | |
| Model | DUA52C748 | |
| Product type | DC undervoltage monitoring relay | |
| Monitoring function | Undervoltage | |
| Voltage monitoring range | 38–58 V DC | |
| Nominal system voltage | 48 V DC | |
| Supply voltage | Self-powered | |
| Output | 1 × SPDT relay | |
| Contact rating | 5 A at 250 V AC | |
| Hysteresis | Adjustable 4–50% | |
| Time delay | No adjustable delay | |
| Mounting type | Mini DIN-rail mounting | |
| Housing width | 17.5 mm | |
| Protection rating | IP20 | |
| Dimensions (W × H × D) | approx. 17.5 × 81 × 67.2 mm | |
| Operating temperature | -20 to +60 °C |
Frequently Asked Questions
What is the Carlo Gavazzi DUA52C748 used for?
The DUA52C748 is used to monitor DC supply voltage and provide relay switching when an undervoltage condition is detected.
What voltage range does the DUA52C748 monitor?
The relay monitors DC voltage within the 38–58 V DC range.
What type of output does the DUA52C748 provide?
The relay provides a SPDT relay output for connection to alarms, contactors or control systems.
How is the Carlo Gavazzi DUA52C748 installed?
The relay is designed for installation inside electrical control panels using a compact 17.5 mm DIN-rail mounting housing.
Where is the DUA52C748 typically used?
The relay is commonly used for monitoring 48 V DC batteries, backup power systems and industrial DC control supplies.
Trusted by Industrial Automation Engineers
Carlo Gavazzi DUA52 monitoring relays are widely used in industrial control applications to provide reliable DC voltage supervision, fault detection and protection for electrical systems.
