Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
RF380016 – T/O RELAY 0 1-0 16A
Lovato RF380016 is a three-pole class 10A thermal overload relay with a 0.10–0.16 A adjustment range, phase-failure sensitivity and manual or automatic reset.
£39.96
Why Choose the Lovato RF380016 Thermal Overload Relay?
The Lovato RF380016 is a three-pole thermal overload relay for three-phase motor protection, designed to protect motors against sustained overload and phase-failure conditions. As part of the Lovato RF38 series, it mounts directly onto compatible BF09–BF38 contactors to create a compact motor starter assembly.
This relay provides an adjustable operational-current range of 0.10–0.16 A, allowing its trip setting to be matched to the protected motor’s rated current. Its class 10A tripping characteristic is designed for standard motor-starting applications where normal acceleration times are relatively short.
The RF380016 is sensitive to phase failure and single-phasing, helping identify current imbalance that could overheat and damage a three-phase motor. Manual or automatic reset selection, a test button, a visible trip indicator and integrated 1NO+1NC auxiliary contacts support flexible control and fault-signalling arrangements.
Key Advantages
- Adjustable 0.10–0.16 A motor-overload protection range.
- Phase-failure and single-phase sensitivity for three-phase motor protection.
- Class 10A thermal tripping characteristic.
- Selectable manual or automatic reset operation.
- Direct mounting on compatible Lovato BF09–BF38 contactors.
- Integrated 1NO+1NC auxiliary contacts for control and trip signalling.
Key Features
- Lovato RF38 series thermal overload relay.
- Three-pole design for three-phase circuits.
- 0.10–0.16 A adjustable current setting.
- Thermal release with class 10A tripping.
- Phase-failure detection.
- Manual or automatic reset selection.
- Built-in test button and trip indicator.
- One normally open and one normally closed auxiliary contact.
- IP20 frontal protection.
Reliable Thermal Protection for Three-Phase Motors
A thermal overload relay monitors the current flowing to a motor and trips when excessive current persists long enough to create a damaging thermal condition. It is intended to protect against overload rather than short circuits, so suitable upstream short-circuit protection is also required.
When the RF380016 trips, its auxiliary contacts change state to interrupt the contactor control circuit and provide a fault signal. Its phase-failure sensitivity accelerates the response when one phase is lost, helping reduce the risk of motor overheating caused by unbalanced current.
Typical Applications
- Low-current three-phase motor starters.
- Pumps, fans and small compressors.
- Conveyors and material-handling equipment.
- Industrial machinery and automation systems.
- Motor-control centres and electrical panels.
- Direct-on-line starters using Lovato BF contactors.
Technical Specifications
Tick the specs you need, then view products that match.
| Current Range | 0.1–0.16 A | |
|---|---|---|
| Device Type | Thermal Overload Relay | |
| Compatible With | BF09–BF38 | |
| Load Voltage | 690 V | |
| Reset Type | Manual or automatic | |
| Monitored Supply | Single-phase | |
| Contacts | 1NO + 1NC | |
| HS Code | 85364900 | |
| Manufacturer | Lovato Electric | |
| Series | RF38 | |
| Model | RF380016 | |
| Product type | Thermal overload relay | |
| Number of poles | 3 | |
| Release type | Thermal | |
| Operational-current range | 0.10–0.16 A | |
| Trip class | 10A | |
| Phase-failure detection | Yes | |
| Reset mode | Manual or automatic | |
| Test button | Yes | |
| Trip indicator | Yes | |
| Auxiliary contacts | 1NO+1NC | |
| Rated operational voltage | 690 V | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Operational frequency | 0–400 Hz | |
| Auxiliary-contact thermal current | 10 A | |
| Auxiliary-contact designation | B600 / R300 | |
| Power terminals | M4 screw and washer | |
| Power-terminal tightening torque | 2–2.5 Nm | |
| Maximum power-conductor capacity | 10 mm² flexible without lug | |
| Frontal protection rating | IP20 | |
| Overvoltage category | III | |
| Pollution degree | 3 | |
| Operating temperature | -25 °C to +60 °C | |
| Storage temperature | -50 °C to +70 °C | |
| Temperature-compensation range | -20 °C to +60 °C | |
| Maximum altitude | 3,000 m | |
| Operating position | Vertical, ±30° allowable | |
| Mounting | Direct mounting on BF09–BF38 contactors | |
| Weight | 156 g |
Frequently Asked Questions
What is the Lovato RF380016 used for?
The RF380016 protects three-phase motors against sustained overload, phase failure and single-phasing when used with a compatible contactor and short-circuit protective device.
What current range does this overload relay support?
The relay has an adjustable operational-current range of 0.10–0.16 A.
What is the trip class of the RF380016?
The RF380016 has a class 10A thermal tripping characteristic for standard motor-starting applications.
Can the relay reset automatically?
Yes. The RF380016 can be configured for either manual or automatic reset.
Which contactors are compatible with the RF380016?
The relay is designed for direct mounting on Lovato BF09–BF38 contactors.
Trusted Motor Protection from Lovato Electric
Lovato Electric RF series thermal overload relays provide dependable motor protection through adjustable current settings, phase-failure sensitivity and straightforward integration with BF series contactors.
