11B25000440 - 3P CONTACTOR B250.00 440/480V

Why Choose the 11B25000440?

Lovato’s B250 three‑pole contactor (SKU 11B25000440) delivers dependable switching for heavy‑duty motor control. Rated Ie (AC3) 265 A and Ui 1000 V with 8 kV impulse withstand, it handles demanding loads with confidence. The universal AC/DC coil operates at 440–480 VAC/DC, simplifying spares and standardising builds. Robust screw mounting and a 35 Nm terminal tightening torque ensure secure installation in industrial panels.

Engineered for endurance, the B250 offers 10,000,000 mechanical cycles and reliable operation from −50 to +70 °C, up to 3000 m altitude, Pollution Degree 3. With an Ith of 350 A and three‑pole configuration, it suits high‑current circuits. Compliance to IEC/EN 60947 and UL/CSA standards supports specification and approvals; the 9580 g build reflects its robust construction.

Key Benefits

• AC3 265 A rating for heavy-duty motor starting and switching.
• AC/DC coil 440–480 VAC/DC simplifies stocking and control voltages.
• Rated insulation voltage 1000 V and 8 kV impulse withstand.
• Wide operating temperature −50 to +70 °C for harsh environments.
• Mechanical life up to 10,000,000 cycles reduces maintenance intervals.
• Screw mounting with 35 Nm torque ensures secure terminations.
• Conforms to IEC/EN, UL and CSA standards for easier compliance.
• Ith (IEC) 350 A supports high continuous current applications.

Technical Specification

• Product type designation: B250
• Number of poles: 3
• 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: 9580 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 three-pole contactor, AC/DC coil 440–480 VAC/DC (SKU 11B25000440)
• Manufacturer data and compliance information as supplied

Applications

• AC-3 motor starters and contactor-based control up to 265 A
• High-current power switching in industrial distribution and automation panels
• Equipment requiring 440–480 VAC/DC coil control circuits
• Installations operating between −50 and +70 °C or up to 3000 m altitude
• Systems needing compliance to IEC/EN, UL and CSA standards

Safety note: Installation must be performed by qualified personnel with power isolated. Observe the 35 Nm terminal torque, stated operating limits and applicable IEC/EN, UL and CSA requirements.