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DUB71CB48500V – VOLT LEV RLY.OVER/UNDER 2-500V AC/DC
Carlo Gavazzi DUB71CB48500V AC/DC voltage monitoring relay with 2–500 V range, SPDT relay output and DIN rail mounting for industrial protection applications.
£98.24
Why Choose the Carlo Gavazzi DUB71CB48500V Voltage Monitoring Relay?
The Carlo Gavazzi DUB71CB48500V is a precise and reliable single-phase AC/DC over and undervoltage monitoring relay designed to protect electrical systems by continuously monitoring voltage levels and providing relay switching when abnormal conditions occur. As part of the advanced Carlo Gavazzi DUB71 monitoring relay series, it is designed for industrial automation, electrical protection systems and control panel applications.
This monitoring relay provides a wide 2–500 V AC/DC monitoring range with selectable voltage functions including overvoltage, undervoltage and combined over or undervoltage monitoring. Its compact 35.5 mm DIN rail housing and SPDT relay output allow straightforward integration into industrial control systems.
With a 24/48 V AC supply, adjustable delay on alarm and flexible AC/DC voltage supervision capability, the DUB71CB48500V is ideal for machine builders, electrical engineers and automation professionals requiring dependable voltage monitoring and fault detection.
Key Advantages
- Compact voltage monitoring relay designed for industrial applications.
- Wide 2–500 V AC/DC monitoring range for flexible system protection.
- Overvoltage, undervoltage and combined voltage monitoring functions.
- SPDT relay output for alarm and control integration.
- Compact 35.5 mm DIN rail mounting housing.
- Adjustable delay on alarm helps prevent unwanted switching.
Key Features
- Carlo Gavazzi DUB71 monitoring relay series.
- Single-phase AC/DC voltage monitoring.
- 2–500 V AC/DC selectable measurement range.
- Overvoltage and undervoltage monitoring capability.
- 1 SPDT relay output.
- 24/48 V AC supply voltage.
- Adjustable voltage set point and hysteresis.
- Adjustable delay on alarm function.
- Mini DIN rail mounting for electrical cabinets.
Reliable Voltage Protection for Industrial Systems
Voltage monitoring relays such as the Carlo Gavazzi DUB71CB48500V help protect electrical equipment by detecting abnormal voltage conditions and activating relay outputs when preset limits are exceeded. This enables automated alarms, shutdown actions and improved system reliability.
The DUB71 series is designed for industrial automation engineers and electrical panel builders requiring accurate monitoring devices with compact DIN rail installation. Its wide AC/DC measurement capability makes it suitable for a broad range of industrial control and protection applications.
Typical Applications
- Industrial control panels.
- Electrical protection systems.
- Power supply voltage supervision.
- Machine fault detection circuits.
- Automation and process control systems.
- Industrial equipment monitoring.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Monitoring Function | Voltage | |
| Monitored Supply | AC/DC | |
| Time Delay | Adjustable | |
| Switching Current (A) | 5 A | |
| Mounting Type | DIN rail | |
| Voltage | 500 V | |
| Coil / Supply Voltage | 24 V AC, 48 V AC | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | DUB71 | |
| Model | DUB71CB48500V | |
| Product type | Voltage monitoring relay | |
| Monitoring function | Overvoltage / undervoltage / over or undervoltage | |
| Voltage measurement range | 2–500 V AC/DC | |
| Additional voltage ranges | 24–240 V AC/DC, 208–480 V AC | |
| Supply voltage | 24/48 V AC | |
| Output | 1 SPDT relay | |
| Contact rating | 5 A at 250 V AC | |
| Delay on alarm | 0.1–30 s adjustable | |
| Mounting type | Mini DIN rail mounting | |
| Connection type | Screw terminals | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | 81 × 35.5 × 67.2 mm | |
| Operating temperature | -20 to +60 °C |
Frequently Asked Questions
What is the Carlo Gavazzi DUB71CB48500V used for?
The Carlo Gavazzi DUB71CB48500V is used for monitoring AC/DC voltage levels and providing relay switching when overvoltage or undervoltage conditions occur.
What voltage range can the DUB71CB48500V monitor?
The relay monitors voltage signals within a 2–500 V AC/DC range with selectable measurement ranges.
What type of output does this monitoring relay provide?
The DUB71CB48500V provides a single SPDT relay output for alarm and control applications.
What supply voltage does the DUB71CB48500V require?
The relay operates from a 24/48 V AC supply.
Where is the DUB71CB48500V installed?
The DUB71CB48500V is typically installed inside electrical control panels using its compact 35.5 mm DIN rail housing.
Trusted by Industrial Automation Professionals
Carlo Gavazzi monitoring relays are widely used by electrical engineers and automation specialists to provide reliable voltage supervision, fault detection and protection across industrial applications.
