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R3D415 – EARTH LEAKAGE RELAY R3D 110-24 0-415VAC
Engineered for dependable protection, the Lovato R3D415 Earth Leakage Relay (SKU R3D415) delivers precise monitoring with two operating thresholds.
£337.40
Lovato R3D415 Earth Leakage Relay - Dual Threshold Residual Current Protection Relay 110-415VAC
The Lovato R3D415 is a flush-mounted earth leakage relay designed for advanced residual current monitoring and electrical protection applications. Featuring Type A residual current detection, two adjustable operating thresholds, fail-safe operation, flag trip indication, and compatibility with 110-125VAC, 220-240VAC, and 380-415VAC supply systems, this relay provides reliable earth fault protection for industrial and commercial electrical installations. The unit requires an external toroidal current transformer for residual current measurement.
Product Overview
The Lovato R3D415 earth leakage relay is part of the Lovato R3D series of residual current monitoring devices. Designed for flush panel mounting with a transparent protective cover, it provides two independent operating thresholds for improved protection coordination. The relay supports external toroidal transformers, configurable fail-safe operation, test functionality, LED status indication, and mechanical trip memory through a flag indicator.
Key Features
- Manufacturer: Lovato Electric
- Model / Part Number: R3D415
- Product Type: Earth leakage relay / residual current monitoring relay
- Residual Current Characteristic: Type A
- Supply Voltage: 110-125VAC, 220-240VAC, 380-415VAC
- Flush panel mounting design
- External toroidal transformer connection
- Two adjustable operating thresholds
- Fail-safe relay operation
- Trip memory flag indicator
- Two SPDT relay outputs
- Front TEST button
- LED indication for power, trip, and alarm status
- IEC/EN 60947-2 compliant
Applications
The Lovato R3D415 is suitable for installations requiring advanced earth leakage monitoring and selective residual current protection, including:
- Industrial control panels
- Electrical distribution systems
- Motor control centres
- Automation equipment
- Machine protection systems
- Commercial electrical installations
Why Choose Lovato R3D415?
The Lovato R3D415 provides enhanced residual current protection through dual adjustable thresholds, fail-safe operation, and external CT compatibility. Its flush-mounted design, Type A detection, trip memory indication, and configurable relay outputs make it ideal for applications requiring reliable earth leakage monitoring and coordinated electrical protection.
Technical Specifications
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| Mounting Type | Panel | |
|---|---|---|
| Monitoring Function | Earth leakage / residual current | |
| Time Delay | Fixed | |
| Switching Current (A) | 5 A | |
| Voltage | 415 V | |
| Coil / Supply Voltage | 110 V AC, 115 V AC, 120 V AC, 220 V AC, 230 V AC, 240 V AC, 380 V AC, 400 V AC, 415 V AC | |
| Contacts | 1 C/O | |
| IP Rating | IP20, IP40 | |
| Specification Value Brand | Lovato Electric | |
| Part Number | R3D415 | |
| Product Type | Earth leakage relay | |
| Residual Current Type | Type A | |
| Mounting Type | Flush mounting | |
| Toroidal Transformer | External | |
| Supply Voltage | 110-125VAC / 220-240VAC / 380-415VAC | |
| Operating Thresholds | 2 adjustable thresholds | |
| Tripping Current Range | 0.025-0.25A / 0.25-2.5A / 2.5-25A | |
| External Multiplier Range | 25-250A | |
| Prealarm Threshold | 70% of IΔn fixed | |
| Trip Delay | 0.02-0.5s / 0.2-5s | |
| Output Contacts | 2 x SPDT changeover contacts | |
| Contact Rating | 5A at 250VAC | |
| Frequency | 50-60Hz | |
| Power Consumption | 4.5VA | |
| Protection Rating | IP40 front / IP20 terminals | |
| Operating Temperature | -10°C to +60°C | |
| Dimensions | 96 x 96 x 75mm | |
| Weight | 470g | |
| Standards | IEC/EN 60947-2 | |
| HS Code | 85365080 |
Frequently Asked Questions
What is the Lovato R3D415 used for?
The Lovato R3D415 is used to monitor earth leakage currents and provide residual current protection in industrial and commercial electrical systems.
Does the Lovato R3D415 include a toroidal transformer?
No. The relay requires an external toroidal current transformer for residual current measurement.
What supply voltage does the Lovato R3D415 support?
The relay supports 110-125VAC, 220-240VAC, and 380-415VAC supply voltages.
How many operating thresholds does the Lovato R3D415 have?
The Lovato R3D415 features two adjustable operating thresholds for improved protection coordination.
