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31RC3548 – COMPACT EARTH LEAKAGE RELAY RC 24-48VAC-
Lovato’s 31RC3548 Earth leakage relay delivers reliable Type A residual current monitoring for internal panel mounting.
£262.04
Lovato 31RC3548 Earth Leakage Relay - Compact Residual Current Protection Relay 24-48VAC/DC
The Lovato 31RC3548 is a compact earth leakage relay designed for residual current monitoring and electrical protection applications. Featuring an integrated 35mm toroidal current transformer, Type A residual current detection, and a 24-48VAC/DC supply range, this relay provides reliable earth fault monitoring for industrial control panels, machinery, and electrical distribution systems.
Product Overview
The Lovato 31RC3548 earth leakage relay belongs to the 31RC series of compact residual current protection devices. It is designed for internal panel mounting and incorporates a built-in 35mm toroidal transformer, eliminating the need for a separate external current transformer. The relay provides one adjustable operating threshold and Type A residual current detection suitable for AC and pulsating DC fault currents.
Key Features
- Manufacturer: Lovato Electric
- Model / Part Number: 31RC3548
- Product Type: Earth leakage relay / residual current monitoring relay
- Residual Current Characteristic: Type A
- Supply Voltage: 24-48VAC/DC
- Integrated toroidal transformer: 35mm diameter
- Single adjustable operating threshold
- SPDT changeover output contact
- TEST function button for operation verification
- LED indication for relay status
- Internal panel mounting design
- IEC/EN 60947-2 compliant
Applications
The Lovato 31RC3548 is suitable for installations requiring dependable earth leakage monitoring and residual current protection, including:
- Industrial electrical panels
- Motor control centres
- Automation systems
- Machine protection applications
- Electrical distribution boards
- Commercial and industrial installations
Why Choose Lovato 31RC3548?
The Lovato 31RC3548 combines compact construction, integrated current sensing, and reliable Type A residual current detection in a single protection device. Its built-in 35mm toroidal transformer, flexible 24-48VAC/DC supply compatibility, and simple panel mounting design make it an effective solution for improving electrical safety and monitoring earth leakage faults.
Technical Specifications
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| Monitoring Function | Earth leakage / residual current | |
|---|---|---|
| Coil / Supply Voltage | 24 V AC, 24 V DC, 48 V AC, 48 V DC | |
| IP Rating | IP20 | |
| Specification Value Brand | Lovato Electric | |
| Part Number | 31RC3548 | |
| Product Type | Earth leakage relay | |
| Residual Current Type | Type A | |
| Rated Supply Voltage | 24-48VAC/DC | |
| Toroidal Transformer | Integrated 35mm / 1.38" | |
| Number of Operating Thresholds | 1 | |
| Leakage Current Range | 0.025-0.25A | |
| Output Contact | SPDT changeover contact | |
| Frequency | 50/60Hz | |
| Power Consumption | 3VA | |
| Protection Rating | IP20 | |
| Operating Temperature | -10°C to +60°C | |
| Dimensions | 100 x 110 x 70mm | |
| Standards | IEC/EN 60947-2 | |
| HS Code | 85389091 |
Frequently Asked Questions
What is the Lovato 31RC3548 used for?
The Lovato 31RC3548 is used to detect earth leakage currents and provide residual current protection in electrical and industrial systems.
What supply voltage does the Lovato 31RC3548 support?
The relay operates with a 24-48VAC/DC supply voltage.
Does the Lovato 31RC3548 include a toroidal transformer?
Yes. The unit includes an integrated 35mm toroidal transformer for residual current measurement.
What type of residual current detection does the Lovato 31RC3548 provide?
The Lovato 31RC3548 provides Type A residual current detection for AC and pulsating DC fault currents.
