11B250400220 - 4P CONTACTOR B250.4.00 220/240

Why Choose the 11B250400220?

Lovato B250 four‑pole contactor (SKU 11B250400220) delivers robust AC‑1 switching with an Ith of 350 A and a universal 220–240 V AC/DC coil. Rated Ui 1000 V with Uimp 8 kV, it suits demanding power control tasks requiring high insulation strength. Screw mounting simplifies panel integration, while compliance with IEC/EN 60947‑1 and 60947‑4‑1, plus UL and CSA equivalents, supports use in regulated industrial environments.

Engineered for longevity, the B250 offers 10,000,000 mechanical operations and operates reliably from −50 to +70 °C, up to 3000 m altitude, pollution degree 3. With screw terminals specified at 35 Nm and a solid 11,120 g build, it is ready for heavy-duty installations. Ideal where consistent, high-current, four-pole switching and a 220–240 V AC/DC control supply are required.

Key Benefits

• 350 A Ith (AC-1) for high-capacity resistive load switching.
• 220–240 V AC/DC coil enables flexible control supply options.
• Four-pole configuration for comprehensive multi-circuit switching.
• Ui 1000 V and Uimp 8 kV for strong insulation performance.
• Wide −50 to +70 °C operating temperature range.
• 10,000,000 mechanical cycles for long service life.
• Screw mounting and 35 Nm terminal torque ease installation.
• Conforms to IEC/EN, UL and CSA product standards.

Technical Specification

• Product type designation: B250
• Number of poles: 4
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Ith (IEC): 350 A
• Terminal tightening torque: 35 to 35 Nm
• Weight: 11120 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 B250 four-pole contactor, SKU 11B250400220
• Integrated 220–240 V AC/DC control coil
• Screw-terminal connection interfaces
• Manufacturer technical datasheet (downloadable)

Applications

• High-current resistive load switching (AC-1) up to 350 A
• Power distribution and control panels
• Industrial heating and oven circuits
• Lighting banks with predominantly resistive loads
• OEM machinery requiring four-pole power switching

Safety note: Install and commission only by qualified personnel; isolate power, tighten terminals to 35 Nm, and observe the specified environmental limits and IEC/EN 60947 requirements.