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BF40T4A048 Lovato 4P CONTACTOR 70A AC1 48VAC 50/60HZ
Lovato BF40T4A048 BF40 four-pole 4NO power contactor with a 70 A AC-1 rating, 40 A AC-3 rating at 400 V and 48 V AC 50/60 Hz control coil for industrial load and motor switching.
£117.54
Why Choose the Lovato BF40T4A048 4-Pole Power Contactor?
The Lovato BF40T4A048 is a robust four-pole power contactor designed for reliable switching of industrial electrical loads, machinery and automation systems. Part of the Lovato BF40 series, it features four normally open main contacts and provides an AC-1 operational current rating of 70 A at 400 V AC.
In addition to its AC-1 capability, the BF40T4A048 provides an AC-3 operational current of 40 A at 400 V AC and a corresponding three-phase motor rating of 18.5 kW. Its four-pole configuration makes it particularly useful where an additional conductor must be switched alongside a three-phase circuit, as well as for resistive loads, heating equipment and general industrial power switching.
This specific BF40T4A048 version uses a 48 V AC, 50/60 Hz control coil. With screw-type frame-clamp power terminals, IP20 front protection, a mechanical life of up to 15 million cycles and compatibility with screw or 35 mm DIN rail mounting, it provides a practical solution for industrial control-panel installations.
Key Advantages
- Heavy-duty four-pole BF40 power contactor for industrial switching.
- 70 A AC-1 operational current at 400 V AC.
- 4NO main contact configuration for simultaneous four-conductor switching.
- 40 A AC-3 operational current at 400 V AC.
- Supports motor loads up to 18.5 kW at 400 V AC.
- Dedicated 48 V AC, 50/60 Hz control coil.
- Mechanical endurance of up to 15,000,000 cycles.
- Flexible screw or 35 mm DIN rail mounting.
Key Features
- Lovato BF40 series power contactor.
- 4-pole configuration with 4NO main contacts.
- 70 A AC-1 operational current at 400 V.
- 40 A AC-3 operational current at 400 V.
- 24 A AC-4 operational current at 400 V.
- 18.5 kW AC-3 motor rating at 400 V.
- 48 V AC, 50/60 Hz coil.
- Frame-clamp main circuit terminals.
- IP20 front power-terminal protection.
- Operational frequency range of 25–400 Hz.
- Maximum installation altitude of 3000 m.
- Screw or 35 mm DIN rail mounting.
Reliable Four-Pole Switching for Industrial Automation
The Lovato BF40T4A048 provides electromagnetic control of industrial power circuits from a lower-power 48 V AC control signal. Energising the coil closes all four normally open main contacts simultaneously, allowing PLCs, control relays and automated machinery to switch substantial electrical loads without carrying the load current through the control equipment.
Its combination of a 70 A AC-1 rating, 40 A AC-3 rating at 400 V and four-pole architecture makes the BF40T4A048 suitable for both general-purpose power switching and motor-control duties. The fourth pole can also accommodate applications requiring an additional switched conductor alongside a three-phase circuit.
Typical Applications
- Industrial electric heating and resistive load control.
- Four-pole industrial power switching.
- Three-phase circuits requiring an additional switched conductor.
- Motor starters and industrial machinery.
- HVAC, pumps and ventilation systems.
- Industrial switchboards and control panels.
- Conveyors and material handling equipment.
- OEM machinery and automation systems.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 42–48 V | |
| Power | 18.5 kW | |
| Current | 40 A | |
| Poles | 4-pole | |
| Coil / Supply Voltage | 48 V AC | |
| Device Type | Contactor | |
| Auxiliary Contacts | None | |
| Coil Type | AC | |
| Current AC-1 | 70 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Series | BF40 | |
| Product designation | BF40.T4 | |
| Model / order code | BF40T4A048 | |
| Product type | Four-pole power contactor | |
| Number of poles | 4 | |
| Main contact configuration | 4NO | |
| Built-in auxiliary contacts | None | |
| Rated operational current AC-1 at 400 V | 70 A | |
| Rated operational current AC-3 at 400 V | 40 A | |
| Rated operational current AC-4 at 400 V | 24 A | |
| AC-3 motor power at 400 V | 18.5 kW | |
| Rated coil voltage | 48 V AC | |
| Coil frequency | 50/60 Hz | |
| Actuating voltage type | AC | |
| Operational frequency | 25–400 Hz | |
| Main circuit connection | Frame-clamp terminals | |
| Resistance per pole | 0.8 mΩ | |
| Power dissipation per pole at thermal current | 3.9 W | |
| Power terminal protection | IP20 front | |
| Mechanical life | 15,000,000 cycles | |
| Maximum mechanical operating frequency | 3600 cycles/h | |
| Operating temperature | -50 to +70 °C | |
| Maximum installation altitude | 3000 m | |
| Mounting | Screw or 35 mm DIN rail | |
| Width | 73 mm | |
| Height | 136 mm | |
| Depth | approx. 115 mm | |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1, CSA C22.2 60947-1 and CSA C22.2 60947-4-1 |
Frequently Asked Questions
What is the Lovato BF40T4A048 used for?
The Lovato BF40T4A048 is a four-pole power contactor designed for switching industrial motors, resistive loads, heating equipment and other electrical circuits in machinery and automation systems.
What is the AC-1 current rating of the Lovato BF40T4A048?
The BF40T4A048 has an AC-1 operational current rating of 70 A at 400 V AC, making it suitable for substantial resistive and general-purpose industrial loads.
What coil voltage does the BF40T4A048 require?
This specific BF40 contactor uses a 48 V AC control coil designed for 50/60 Hz operation.
Can the Lovato BF40T4A048 switch three-phase motors?
Yes. The BF40T4A048 has an AC-3 operational current rating of 40 A at 400 V AC and is rated for three-phase motors up to 18.5 kW at 400 V AC.
How is the Lovato BF40T4A048 mounted?
The BF40T4A048 supports screw mounting or installation on a 35 mm DIN rail, providing flexible integration into industrial control panels and switchboards.
Trusted by Industrial Automation Professionals
Lovato BF series power contactors are designed for dependable industrial motor and load switching, combining robust construction, high electrical capacity and flexible panel mounting for machinery, switchboards and automation systems.
