BFK3800A400 - 3P CONTACTOR 30KVAR 400V 50/60HZ

Why Choose the BFK3800A400?

Lovato’s BFK3800A400 is a contactor for power factor correction with an AC control circuit, designed for dependable capacitor switching. Rated 30 kvar at 400 V with a 400 VAC 50/60 Hz coil, this 3-pole unit integrates limiting resistors to curb inrush. Screw or 35 mm DIN rail mounting streamlines panel installation for OEMs and MROs seeking a robust, space-efficient solution.

Built to endure demanding environments, the BFK38 range offers Ui 690 V, Uimp 6 kV and Ith 56 A, with a mechanical life of 20,000,000 cycles. Operates from -50 to 70 °C up to 3000 m, pollution degree 3. Conforms to IEC/EN/BS 60947-1 and 60947-4-1, UL 60947-1/-4-1 and CSA C22.2 60947-1/-4-1, ensuring broad compliance and confidence in low-voltage power factor correction assemblies.

Key Benefits

• Purpose-built for power factor correction with integrated limiting resistors.
• Delivers 30 kvar at 400 V for dependable capacitor switching.
• 400 VAC 50/60 Hz AC coil suits standard control circuits.
• Robust ratings: Ui 690 V, Uimp 6 kV, Ith 56 A.
• Long mechanical life of 20,000,000 cycles minimises maintenance.
• Wide operating range from -50 to 70 °C and pollution degree 3.
• Flexible screw or 35 mm DIN rail mounting for fast installation.
• Compact 400 g design with 2.5–3 Nm terminal torque.

Technical Specification

• Product type designation: BFK38
• Number of poles: 3
• Rated insulation voltage Ui (IEC/EN): 690 V
• Rated impulse withstand voltage Uimp: 6 kV
• Ith (IEC): 56 A
• Terminal tightening torque: 2.5 to 3 Nm
• Weight: 400 g
• Mechanical life: 20000000 cycles
• Operating temperature: -50 to 70 °C
• Storage temperature: -60 to 80 °C
• Max altitude: 3000 m
• Pollution degree: 3

What’s Included

• Lovato BFK3800A400 contactor assembly with integrated limiting resistors
• Pre-fitted 400 VAC 50/60 Hz AC coil
• Manufacturer data sheet (digital)

Applications

• Low-voltage capacitor bank switching for power factor correction
• Industrial control panels and motor control centres with AC control circuits
• Commercial building PFC systems and energy efficiency upgrades
• Installations with wide temperature variation or higher altitudes
• OEM panel builds requiring DIN rail or screw-mounted PFC contactors

Safety note: Install and service only by qualified personnel. Isolate power and ensure any connected capacitors are fully discharged before work, and tighten terminals to 2.5–3 Nm in accordance with standards.