11B250400110 - 4P CONTACTOR B250.4.00 110/125

Why Choose the 11B250400110?

Engineered for demanding switching duties, the Lovato B250 four‑pole contactor (SKU 11B250400110) delivers robust AC‑1 performance with Ith 350 A. Its universal AC/DC coil operates on 110–125 VAC/DC, simplifying control integration. With a rated insulation voltage Ui of 1000 V and an impulse withstand Uimp of 8 kV, this contactor offers reliable isolation and endurance in industrial control and distribution applications.

Built for longevity and harsh environments, the B250 achieves 10,000,000 mechanical life cycles and operates from −50 to 70 °C at altitudes up to 3000 m (Pollution degree 3). Screw mounting with 35 Nm terminal tightening torque ensures secure installation, while the compact 1123 g build aids panel design. Conformity to IEC/EN 60947‑1 and 60947‑4‑1, plus UL and CSA standards, supports global specification and procurement.

Key Benefits

• 350 A Ith (AC‑1) handling for high-capacity resistive switching.
• AC/DC coil 110–125 VAC/DC suits mixed control voltage systems.
• Four-pole configuration enables flexible power and auxiliary circuit arrangements.
• Ui 1000 V and Uimp 8 kV provide enhanced insulation performance.
• Operates from -50 to 70 °C for demanding environmental conditions.
• Designed for long service with 10,000,000 mechanical life cycles.
• Screw mounting and 35 Nm terminal torque simplify secure installation.
• Conforms to IEC/EN, UL, and CSA standards for global acceptance.

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: 1123 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 11B250400110)
• Integrated AC/DC coil rated 110–125 VAC/DC

Applications

• Switching AC‑1 resistive loads up to 350 A Ith.
• Industrial control and distribution panels requiring four-pole contactors.
• Installations with 110–125 VAC/DC control circuits for the coil.
• Environments from -50 to 70 °C and up to 3000 m altitude.
• Projects needing IEC/EN 60947‑4‑1, UL and CSA conformity.

Safety note: Installation and servicing must be performed by qualified personnel. Isolate all power sources before work, observe the specified terminal tightening torque and environmental ratings, and follow applicable standards.