11B40040060 - 4P CONTACTOR B400.4.00 60V

Why Choose the 11B40040060?

Lovato B400 Four-Pole Contactor SKU 11B40040060 delivers heavy‑duty switching with a 60 V AC/DC coil and four power poles. Rated 550 A AC1 and 420 A/225 kW AC3 at 400 V, it also carries a 350 HP UL/CSA rating at 480 V. With 1000 V rated insulation and 8 kV impulse withstand, this contactor provides robust dielectric performance and reliable screw mounting for demanding control, distribution and motor applications.

Built for longevity and harsh environments, the B400 offers a 10,000,000‑cycle mechanical life, -50…70 °C operating range and -60…80 °C storage. It is suitable up to 3000 m altitude, Pollution Degree 3, with 35 Nm terminal tightening torque. Compliant with IEC/EN 60947-1/-4-1 and UL/CSA counterparts, and backed by a Sustainability certification, it’s a dependable four-pole contactor for new builds and retrofit projects.

Key Benefits

• High AC1 current rating of 550 A for resistive loads.
• Strong AC3 performance: 420 A/225 kW at 400 V for motors.
• Versatile 60 V AC/DC coil simplifies control power design.
• Rated insulation 1000 V and 8 kV impulse withstand.
• Extended mechanical life of 10,000,000 operating cycles.
• Wide operating temperature range from -50 to 70 °C.
• Certified to IEC/EN, UL and CSA standards for compliance.
• Secure screw mounting with 35 Nm terminal tightening torque.

Technical Specification

• Product type designation: B400
• Number of poles: 4
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Ith (IEC): 550 A
• Terminal tightening torque: 35 to 35 Nm
• Weight: 11 g
• Mechanical life: 10000000 cycles
• Operating temperature: -50 to 70 °C
• Storage temperature: -60 to 80 °C
• Max altitude: 3000 m
• Pollution degree: 3

What’s Included

• Lovato B400 four-pole contactor (SKU 11B40040060).
• Integrated 60 V AC/DC coil.
• Mounting and terminal instructions.
• Downloadable manufacturer data sheet.

Applications

• Heavy-duty motor control up to 420 A/225 kW at 400 V (AC3).
• Resistive and heating loads up to 550 A (AC1).
• Large pump, fan and compressor starters to 350 HP at 480 V.
• Power distribution and switching in industrial panels.
• Retrofit upgrades where 60 V AC/DC coils are specified.

Safety note: Install and commission only by qualified personnel. Isolate all power sources before work, observe the stated ratings, torque, temperature and altitude limits, and comply with IEC/EN 60947 and local regulations.