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RF383800 Lovato RF38 overload relay 32-38 amp dol 18.5kw star/delta at 30kw
Lovato RF383800 thermal overload relay, a 32-38 A motor protection relay designed for industrial motor control and protection applications.
£70.35
Why Choose the Lovato RF383800 Thermal Overload Relay?
The Lovato RF383800 is a reliable thermal overload relay designed to protect three-phase motors against overload conditions and phase failure in industrial motor control applications. As part of the robust Lovato RF38 series, this motor protection relay provides dependable thermal protection, manual or automatic reset functionality and direct mounting compatibility with Lovato BF09 to BF38 contactors.
This overload relay is engineered for industrial motor starters and control panels where reliable motor protection is essential. The RF383800 detects overload conditions and phase loss, helping prevent motor damage caused by excessive current and single-phase operation while improving the safety and service life of connected equipment.
With an adjustable operating current range of 32–38 A, a three-pole configuration and compatibility with Lovato BF09 to BF38 contactors, the RF383800 is suitable for industrial motor control systems requiring compact and dependable protection.
Key Advantages
- Reliable thermal motor protection relay for industrial applications.
- 32–38 A adjustable operating current range for flexible motor protection.
- Phase failure detection helps protect motors against single-phase operation.
- Manual or automatic reset selection for application flexibility.
- Direct mounting on Lovato BF09 to BF38 contactors.
- Compact design for straightforward installation in motor control assemblies.
Key Features
- Lovato RF38 series thermal overload relay.
- 32–38 A operational current adjustment.
- Three-pole motor protection design.
- Phase failure and single-phase sensitivity.
- Manual or automatic reset mode.
- Trip indicator and test button included.
- Direct mounting on Lovato BF09 to BF38 contactors.
- IP20 front protection rating.
Reliable Motor Protection for Industrial Systems
Thermal overload relays such as the Lovato RF383800 protect electric motors by monitoring operating current and disconnecting the motor circuit when excessive current conditions occur. This helps prevent overheating, reduces equipment damage and improves the reliability of industrial machinery.
The RF38 series is designed for integration with Lovato motor starters and contactor systems. Its adjustable current setting, phase failure sensitivity and flexible reset options make it suitable for modern industrial automation and motor control applications.
Typical Applications
- Industrial motor starters.
- Pumps and water handling systems.
- Fans and ventilation equipment.
- Conveyor and material handling systems.
- Production machinery.
- OEM control panels and automation systems.
Technical Specifications
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| Mounting Type | Direct mount on contactor | |
|---|---|---|
| Device Type | Thermal Overload Relay | |
| Current Range | 32–38 A | |
| Compatible With | BF09–BF38 | |
| Trip Class | Class 10A | |
| Reset Type | Manual / Automatic | |
| Poles | 3-pole | |
| HS Code | 85364900 | |
| Manufacturer | Lovato Electric | |
| Series | RF38 | |
| Model | RF383800 | |
| Product type | Thermal overload relay | |
| Number of poles | 3 | |
| Operational current range | 32–38 A | |
| Trip class | 10A | |
| Release type | Thermal | |
| Phase failure detection | Yes | |
| Reset mode | Manual or automatic | |
| Rated insulation voltage | 690 V | |
| Rated operational voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Protection rating | IP20 | |
| Mounting type | Direct mounting on BF09 to BF38 contactors | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Weight | approx. 160 g |
Frequently Asked Questions
What is the Lovato RF383800 used for?
The RF383800 is a thermal overload relay used to protect three-phase motors against overload conditions and phase failure.
What current range does the RF383800 support?
The relay supports an adjustable operating current range of 32–38 A.
Does the RF383800 detect phase failure?
Yes, the relay includes phase failure detection to help protect motors from single-phase operation.
What reset options are available?
The RF383800 supports both manual and automatic reset modes.
Which contactors is the RF383800 compatible with?
The relay is designed for direct mounting on Lovato BF09 to BF38 contactors.
Trusted by Industrial Automation Engineers Worldwide
Lovato RF38 thermal overload relays are widely used in industrial motor control systems to provide dependable protection, flexible installation and reliable operation in demanding automation environments.
