11B500400440 - 4P CONTACTOR B500.4.00 440/480

Why Choose the 11B500400440?

Lovato B500 four-pole contactor (SKU 11B500400440) delivers heavy-duty switching performance for demanding industrial panels. Rated Ith (AC1) at 700 A and Ie (AC3) 520 A/290 kW at 400 V, it incorporates an AC/DC coil 440–480 V for flexible control integration. With Ui 1000 V and Uimp 8 kV, this contactor ensures robust insulation and impulse withstand, while screw mounting supports secure, reliable installation.

Engineered for longevity, the B500 achieves 5,000,000 mechanical cycles and operates from −50 to 70 °C up to 3000 m altitude, Pollution Degree 3. Terminal tightening torque is 35 Nm for dependable connections. Conforming to IEC/EN 60947-1 and 60947-4-1, plus UL and CSA equivalents, this 4-pole contactor delivers consistent performance in motor control and power switching applications across varied environments.

Key Benefits

• High AC1 current rating of 700 A for heavy-duty loads.
• Strong AC3 performance: 520 A / 290 kW at 400 V.
• AC/DC coil 440–480 V provides versatile control options.
• Ui 1000 V and Uimp 8 kV for insulation robustness.
• Wide operating range: −50 to 70 °C, up to 3000 m.
• Long mechanical life, up to 5,000,000 cycles.
• Screw mounting with 35 Nm terminal torque for secure wiring.
• Compliance with IEC/EN, UL, CSA standards for global use.

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: 2163 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 11B500400440
• Pre-fitted AC/DC coil rated 440–480 V
• Screw terminal interfaces for power and control wiring
• Manufacturer datasheet (downloadable)

Applications

• Motor starters requiring AC-3 duty at 400 V
• General power switching and distribution in AC-1 duty
• Industrial control panels needing high-current, four-pole contactors
• Installations requiring IEC/EN 60947 compliant switching devices

Safety note: Install and commission only by competent personnel. Verify the correct coil voltage, apply the specified terminal torque, and isolate power before wiring or maintenance in accordance with IEC/EN 60947 practices.