11B500400380 - 4P CONTACTOR B500.4.00 380/415

Why Choose the 11B500400380?

Engineered for heavy-duty switching, the Lovato B500 four‑pole contactor (SKU 11B500400380) delivers a robust 700 A Ith (AC1) with an AC/DC coil rated 380…415 V. Designed for reliable control of high-power circuits, it offers 520 A / 290 kW at 400 V in AC3 duty. Screw mounting simplifies panel integration, while compliance with IEC/EN 60947-1 and 60947-4-1 underpins safe, consistent performance in demanding industrial applications.

Built to endure, this contactor provides 1000 V Ui and 8 kV impulse withstand, plus a mechanical life of 5,000,000 cycles. It operates from −50 to +70 °C and up to 3000 m altitude, with pollution degree 3 robustness. Terminals tighten to 35 Nm for secure connections, and the 2175 g assembly fits neatly in switchboards where long service and consistent performance are essential.

Key Benefits

• 700 A AC1 current rating for heavy-duty power switching.
• AC/DC coil supports 380–415 V supplies for flexible control.
• Four-pole configuration enhances isolation and circuit versatility.
• Delivers 520 A / 290 kW in AC3 at 400 V.
• High dielectric strength: 1000 V Ui and 8 kV Uimp.
• Extended service life with 5,000,000 mechanical cycles.
• Wide operating range −50 to +70 °C; up to 3000 m altitude.

Technical Specification

• Product type designation: B500
• Number of poles: 4
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Ith (IEC): 700 A
• Terminal tightening torque: 35 to 35 Nm
• Weight: 2175 g
• Mechanical life: 5000000 cycles
• Operating temperature: -50 to 70 °C
• Storage temperature: -60 to 80 °C
• Max altitude: 3000 m
• Pollution degree: 3

What’s Included

• Lovato B500 four-pole contactor, SKU 11B500400380.
• Manufacturer product datasheet (PDF) and technical specifications.
• Basic installation and safety guidance.

Applications

• Switching AC1 loads up to 700 A in power distribution.
• Motor control applications to 290 kW at 400 V (AC3 duty).
• Industrial switchboards and MCCs requiring four-pole isolation.
• Harsh environments with wide temperature and altitude tolerance.

Safety note: Installation must be performed by qualified personnel. Isolate power before work, apply the specified 35 Nm terminal torque, and follow IEC/EN 60947 practices and the manufacturer’s instructions.