Lovato 31RMT415 Earth Leakage Relay - Modular Residual Current Protection Relay with Integrated 28mm Toroidal Transformer 110-415VAC
The Lovato 31RMT415 is a modular earth leakage relay designed for residual current monitoring and electrical protection applications.
Featuring an integrated 28mm toroidal current transformer, Type A residual current detection, configurable fail-safe operation, and compatibility
with 110-125VAC/DC, 220-240VAC, and 380-415VAC supplies, this relay provides reliable earth fault protection for industrial and commercial
electrical installations. The compact design allows installation on standard 35mm DIN rails according to IEC/EN 60715.
Product Overview
The Lovato 31RMT415 earth leakage relay is part of the Lovato 31RMT series of modular residual current protection devices.
Unlike the standard 31RM415 version that requires an external CT, the 31RMT415 incorporates a built-in 28mm toroidal transformer,
simplifying installation while maintaining accurate Type A residual current monitoring. The relay provides one adjustable operating threshold,
DIN rail mounting, and configurable fail-safe functionality for enhanced system protection.
Key Features
Manufacturer: Lovato Electric
Model / Part Number: 31RMT415
Product Type: Earth leakage relay / residual current monitoring relay
The Lovato 31RMT415 is suitable for installations requiring dependable earth leakage monitoring and residual current protection, including:
Industrial electrical panels
Motor control centres
Electrical distribution boards
Automation systems
Machine safety applications
Commercial electrical installations
Why Choose Lovato 31RMT415?
The Lovato 31RMT415 combines a compact DIN rail design with an integrated toroidal transformer, reducing installation complexity while
providing accurate residual current monitoring. Its Type A detection, configurable fail-safe operation, and broad voltage compatibility
make it a reliable choice for protecting electrical systems against earth leakage faults.
Technical Specifications
Specification Value Brand
Lovato Electric
Part Number
31RMT415
Product Type
Earth leakage relay
Residual Current Type
Type A
Mounting Type
35mm DIN rail mounting
Toroidal Transformer
Integrated 28mm / 1.1"
Supply Voltage
110-125VAC/DC; 220-240VAC; 380-415VAC
Number of Operating Thresholds
1
Leakage Current Range
0.25-2.5A
Output Contact
SPDT changeover contact
Frequency
50-60Hz
Power Consumption
3VA
Protection Rating
IP20
Operating Temperature
-10°C to +60°C
Weight
380.9g
Standards
IEC/EN 60947-2
HS Code
85389091
Frequently Asked Questions
What is the Lovato 31RMT415 used for?
The Lovato 31RMT415 is used to detect earth leakage currents and provide residual current protection in industrial and commercial electrical systems.
Does the Lovato 31RMT415 include a toroidal transformer?
Yes. The relay includes an integrated 28mm toroidal transformer for residual current measurement.
What supply voltage does the Lovato 31RMT415 support?
The relay supports 110-125VAC/DC, 220-240VAC, and 380-415VAC supply voltages.
What type of residual current detection does the Lovato 31RMT415 provide?
The Lovato 31RMT415 provides Type A residual current detection suitable for AC and pulsating DC fault currents.
Specification Value Brand
Lovato Electric
Part Number
31RMT415
Product Type
Earth leakage relay
Residual Current Type
Type A
Mounting Type
35mm DIN rail mounting
Toroidal Transformer
Integrated 28mm / 1.1"
Supply Voltage
110-125VAC/DC; 220-240VAC; 380-415VAC
Number of Operating Thresholds
1
Leakage Current Range
0.25-2.5A
Output Contact
SPDT changeover contact
Frequency
50-60Hz
Power Consumption
3VA
Protection Rating
IP20
Operating Temperature
-10°C to +60°C
Weight
380.9g
Standards
IEC/EN 60947-2
HS Code
85389091
No documents available for this product.
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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...