BF40T4A110 Lovato contactor 4 pole AC3:40A 18.5kw 110VAC coil

Why Choose the BF40T4A110?

The Lovato BF40T4A110 is a robust four-pole contactor designed for dependable switching in industrial panels. Rated 70A AC1 and 40A/18.5kW AC3 at 400V, it features a 110VAC 50/60Hz AC coil for versatile control. With screw or 35mm DIN rail mounting, it integrates easily into new builds and retrofits, delivering reliable performance for motors, resistive loads and general power distribution.

Engineered to IEC/EN/BS 60947 and UL/CSA standards, the BF40 range offers 1000V Ui and 8kV impulse withstand for insulation robustness. It delivers up to 15,000,000 mechanical cycles, operates from -50 to 70°C and up to 3000 m altitude, with terminals tightened to 4–5 Nm. Rated 30 HP at 480V (UL/CSA), it suits demanding environments, with Pollution Degree 3 design and a solid 1240 g build.

Key Benefits

• High 70A AC1 rating for robust resistive load switching.
• 40A/18.5kW AC3 at 400V for motor applications.
• 110VAC 50/60Hz coil simplifies global control compatibility.
• Screw or 35mm DIN rail mounting for fast installation.
• 1000V Ui and 8kV Uimp for insulation endurance.
• Long 15,000,000 mechanical life reduces maintenance intervals.
• Operates -50 to 70°C, suitable for harsh environments.

Technical Specification

• Product type designation: BF40
• Number of poles: 4
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Ith (IEC): 70 A
• Terminal tightening torque: 4 to 5 Nm
• Weight: 1240 g
• Mechanical life: 15000000 cycles
• Operating temperature: -50 to 70 °C
• Storage temperature: -60 to 80 °C
• Max altitude: 3000 m
• Pollution degree: 3

What’s Included

• Lovato BF40T4A110 four-pole contactor
• Pre-fitted 110VAC 50/60Hz AC coil
• Manufacturer documentation and safety information
• Protective packaging for transit

Applications

• Motor starters and contactor assemblies up to 18.5 kW at 400V.
• Resistive heating and distribution switching up to 70A AC1.
• HVAC fans, pumps and compressors requiring reliable AC3 switching.
• Industrial automation panels and MCCs with 35mm DIN rail layouts.
• General purpose power control in IEC/UL/CSA compliant systems.

Safety note: Installation must be performed by qualified personnel with power isolated. Verify the 110VAC 50/60Hz coil rating, tighten terminals to 4–5 Nm, and follow applicable IEC/UL/CSA standards.