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R1D48 – EARTH LEAKAGE RELAY R1D 48VAC
The Lovato R1D48 Earth leakage relay delivers dependable Type A residual monitoring for panels and switchboards.
£211.17
Lovato R1D48 Earth Leakage Relay - Flush Mount Residual Current Protection Relay 24-48VAC/DC
The Lovato R1D48 is a flush-mounted earth leakage relay designed for residual current monitoring and electrical protection applications. Featuring Type A residual current detection, one adjustable operating threshold, and a 24-48VAC/DC auxiliary supply, this relay provides reliable earth fault monitoring for industrial and commercial electrical installations. The unit requires an external toroidal current transformer and includes adjustable trip current and delay settings for flexible protection coordination.
Product Overview
The Lovato R1D48 earth leakage relay is part of the Lovato R1D series of residual current monitoring devices. Designed for flush panel mounting, it operates with an external toroidal transformer to measure leakage currents. The relay provides a single adjustable operating threshold, SPDT relay output, front TEST button, configurable automatic or manual reset, and Type A residual current detection suitable for AC and pulsating DC fault currents.
Key Features
- Manufacturer: Lovato Electric
- Model / Part Number: R1D48
- Product Type: Earth leakage relay / residual current monitoring relay
- Residual Current Characteristic: Type A
- Supply Voltage: 24-48VAC/DC
- Flush panel mounting design
- External toroidal transformer connection
- Single adjustable operating threshold
- SPDT changeover relay output
- Front TEST button
- Automatic or manual reset selection
- LED indication for power and trip status
- IEC/EN 60947-2 compliant
Applications
The Lovato R1D48 is suitable for installations requiring dependable earth leakage monitoring and residual current protection, including:
- Industrial control panels
- Electrical distribution boards
- Motor control centres
- Automation systems
- Machine protection applications
- Commercial electrical installations
Why Choose Lovato R1D48?
The Lovato R1D48 provides a reliable flush-mounted solution for residual current protection where an external toroidal transformer is preferred. Its Type A detection, adjustable trip settings, configurable reset functions, and 24-48VAC/DC supply compatibility make it suitable for improving electrical safety and monitoring earth leakage faults in demanding applications.
Technical Specifications
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| Mounting Type | Panel | |
|---|---|---|
| Time Delay | Fixed | |
| Switching Current (A) | 5 A | |
| Monitoring Function | Earth leakage / residual current | |
| Coil / Supply Voltage | 24 V AC, 24 V DC, 48 V AC, 48 V DC | |
| IP Rating | IP20, IP40 | |
| Specification Value Brand | Lovato Electric | |
| Part Number | R1D48 | |
| Product Type | Earth leakage relay | |
| Residual Current Type | Type A | |
| Mounting Type | Flush mounting | |
| Toroidal Transformer | External | |
| Supply Voltage | 24-48VAC/DC | |
| Number of Operating Thresholds | 1 | |
| Adjustable Tripping Current | 0.025-0.25A / 0.25-2.5A / 2.5-25A | |
| External Multiplier Range | 25-250A | |
| Trip Delay | 0.02-0.5s / 0.2-5s | |
| Output Contact | 1 x SPDT changeover contact | |
| Contact Rating | 5A at 250VAC | |
| Frequency | 50-60Hz | |
| Power Consumption | Maximum 5.5VA | |
| Protection Rating | IP40 front / IP20 terminals | |
| Operating Temperature | -10°C to +60°C | |
| Dimensions | 96 x 96 x 75mm | |
| Weight | 283g | |
| Standards | IEC/EN 60947-2 | |
| HS Code | 85365080 |
Frequently Asked Questions
What is the Lovato R1D48 used for?
The Lovato R1D48 is used to monitor earth leakage currents and provide residual current protection in industrial and commercial electrical systems.
Does the Lovato R1D48 include a toroidal transformer?
No. The relay requires an external toroidal current transformer for residual current measurement.
What supply voltage does the Lovato R1D48 support?
The relay operates with a 24-48VAC/DC auxiliary supply.
What type of residual current detection does the Lovato R1D48 provide?
The Lovato R1D48 provides Type A residual current detection suitable for AC and pulsating DC fault currents.
