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BF3800D125 – 3P CONTACTOR 38A AC3 125VDC
Lovato BF3800D125 three-pole power contactor with a 38 A AC-3 rating, 18.5 kW motor rating at 400–440 V and a 125 V DC control coil for industrial motor-control applications.
£157.41
Why Choose the Lovato BF3800D125 Power Contactor?
The Lovato BF3800D125 is a robust three-pole power contactor designed for reliable switching and control of motors and electrical loads in industrial installations. Part of the Lovato BF38 series, it combines compact construction with dependable electrical and mechanical performance.
Rated for an AC-3 operational current of 38 A, the BF3800D125 can control three-phase motors rated up to 18.5 kW at 400–440 V. Its long mechanical and electrical service life makes it suitable for frequently operated machinery, motor starters and automated control systems.
The contactor features a 125 V DC control coil and can be installed using screws or a 35 mm DIN rail. IP20 protection at the power terminals when properly wired and a wide operating temperature range support dependable use in demanding electrical panels.
Key Advantages
- 38 A AC-3 operational current for industrial motor switching.
- Controls three-phase motors rated up to 18.5 kW at 400–440 V.
- 125 V DC control coil for compatible DC control circuits.
- Long mechanical life of up to 20 million operating cycles.
- Flexible screw or 35 mm DIN-rail mounting.
- Suitable for operation in ambient temperatures from -50 °C to +70 °C.
Key Features
- Lovato BF38 series three-pole power contactor.
- 38 A AC-3 rated operational current at up to 440 V and 55 °C.
- 56 A conventional free-air thermal current.
- 18.5 kW AC-3 motor rating at 400–440 V.
- 125 V DC coil with 5.4 W average consumption.
- Rated insulation voltage of 690 V.
- Rated impulse withstand voltage of 6 kV.
- IP20 power-terminal protection when correctly wired.
Dependable Switching for Industrial Motor Control
Power contactors provide remote and automatic switching of motors and other electrical loads. The Lovato BF3800D125 uses an electromagnetic coil to operate its main contacts, enabling machinery to be started and stopped through a 125 V DC control circuit.
Its high switching capacity, durable construction and long operating life make this contactor suitable for direct-on-line starters, reversing starters and coordinated motor-control assemblies. The compact BF38 design also simplifies installation inside industrial control panels and distribution enclosures.
Typical Applications
- Three-phase motor starters and control panels.
- Industrial pumps, fans and compressors.
- Conveyors and material-handling equipment.
- Manufacturing and processing machinery.
- Industrial automation systems using 125 V DC control circuits.
- Generator, infrastructure and utility control panels.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 100–130 V | |
| Current | 38 A | |
| Power | 18.5 kW | |
| Poles | 3-pole | |
| Device Type | Contactor | |
| Coil Type | DC | |
| Current AC-1 | 56 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Series | BF38 | |
| Model | BF3800D125 | |
| Product type | Three-pole power contactor | |
| Number of poles | 3 | |
| Control coil voltage | 125 V DC | |
| Coil pick-up range | 70–125% of rated control voltage | |
| Coil drop-out range | 10–40% of rated control voltage | |
| Average coil consumption | 5.4 W inrush and holding | |
| AC-3 operational current | 38 A at up to 440 V and 55 °C | |
| AC-1 operational current | 56 A at up to 40 °C | |
| Conventional free-air thermal current | 56 A | |
| AC-4 operational current | 15.5 A at 400 V | |
| AC-3 motor rating | 11 kW at 230 V; 18.5 kW at 400–440 V; 20 kW at 500 V; 22 kW at 690 V | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Operational frequency | 25–400 Hz | |
| Making capacity | 380 A RMS | |
| Short-time allowable current | 320 A for 10 s | |
| Recommended IEC fuse protection | 63 A gG or 40 A aM | |
| Mechanical life | 20,000,000 cycles | |
| Electrical life | 1,400,000 cycles | |
| Maximum mechanical operating frequency | 3,600 cycles/h | |
| Power-terminal protection | IP20 when properly wired | |
| Mounting type | Screw or 35 mm DIN rail | |
| Operating temperature | -50 °C to +70 °C | |
| Maximum operating altitude | 3,000 m | |
| Weight | 560 g | |
| EAN-13 | 8013975166727 |
Frequently Asked Questions
What is the Lovato BF3800D125 used for?
The BF3800D125 is used to switch and control three-phase motors and other electrical loads in industrial motor starters, machinery and automation panels.
What is the AC-3 current rating of this contactor?
The contactor has an AC-3 operational current rating of 38 A at voltages up to 440 V and an ambient temperature of 55 °C.
What motor power can the BF3800D125 control?
It can control a three-phase motor rated up to 18.5 kW at 400–440 V under AC-3 operating conditions.
What control voltage does the BF3800D125 require?
The BF3800D125 is fitted with a 125 V DC control coil.
How is this contactor mounted?
The contactor can be installed with screws or mounted on a standard 35 mm DIN rail inside an electrical enclosure or control panel.
Trusted Industrial Switching from Lovato Electric
Lovato Electric BF series contactors provide durable and reliable load switching for motor-control panels, industrial machinery and automation systems operating in demanding electrical environments.
