11B250400380 - 4P CONTACTOR B250.4.00 380/415

Why Choose the 11B250400380?

Lovato’s B250 four‑pole contactor (SKU 11B250400380) delivers dependable switching for AC‑1 duties, with an IEC Ith of 350 A. Its universal AC/DC coil operates at 380–415 VAC/DC, while the device offers strong dielectric performance with Ui 1000 V and Uimp 8 kV. Screw mounting simplifies panel integration and the four-pole configuration enhances versatility across power distribution and resistive load applications.

Engineered for longevity and harsh conditions, the B250 offers 10,000,000 mechanical cycles, an operating temperature range of –50 to 70 °C, and storage from –60 to 80 °C. Terminals support secure connections with 35 Nm tightening torque. Rated for installation up to 3000 m and pollution degree 3, it weighs 1114 g and conforms to IEC/EN 60947-1 and 60947-4-1, plus UL and CSA equivalents, supporting compliance in demanding installations.

Key Benefits

• 350 A Ith (AC1) capacity for heavy-duty AC‑1 resistive loads.
• AC/DC coil operable at 380–415 VAC/DC for control flexibility.
• Ui 1000 V and Uimp 8 kV ensure robust insulation performance.
• Four-pole configuration enables versatile multi-circuit switching.
• 10,000,000 mechanical cycles for long service life.
• –50 to 70 °C operating range suits harsh environments.
• Screw mounting and 35 Nm terminal torque for secure installation.
• Complies with IEC/EN, UL, and CSA standards for assurance.

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: 1114 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 11B250400380
• Manufacturer datasheet and certifications (downloadable)
• Protective packaging for transit
• Basic installation and safety information from manufacturer

Applications

• AC‑1 resistive load switching up to 350 A
• Power distribution panels requiring four-pole contactors
• Heating and lighting circuits with 380–415 VAC/DC coil control
• Industrial control assemblies needing IEC/EN 60947 compliance
• Installations at altitudes up to 3000 m and pollution degree 3

Safety note: Install and commission only by qualified personnel per applicable standards. De-energise circuits before work, observe the –50 to 70 °C operating limits and 3000 m altitude rating, and tighten terminals to 35 Nm.