11B25040024 - 4P CONTACTOR B250.4.00 24V

Why Choose the 11B25040024?

Engineered for demanding AC-1 duties, the Lovato B250 four‑pole contactor pairs a universal 24VAC/DC coil with a robust 350 A Ith rating. The 11B25040024 model uses screw mounting for straightforward panel integration and weighs 1,137 g. It conforms to IEC/EN 60947-1 and 60947-4-1, plus UL and CSA equivalents, supporting consistent performance and regulatory compliance in industrial control assemblies.

Built for endurance and harsh conditions, this contactor delivers 10,000,000 mechanical cycles and operates from −50 to +70 °C. With Ui 1000 V and Uimp 8 kV, it offers strong insulation margins, and is rated for pollution degree 3 up to 3,000 m altitude. The B250 provides 35 Nm terminal tightening torque to assure secure connections, with storage from −60 to +80 °C for logistical resilience.

Key Benefits

• Universal 24VAC/DC coil simplifies control wiring and spares management.
• 350 A Ith (AC-1) capacity for heavy general-purpose loads.
• High insulation ratings: Ui 1000 V and Uimp 8 kV.
• Wide operating temperature −50 to +70 °C for harsh environments.
• Long mechanical life of 10,000,000 cycles reduces maintenance downtime.
• Screw mounting enables straightforward, secure installation in panels.
• Certified to IEC/EN, UL and CSA standards for compliance.
• Suitable for altitude up to 3,000 m, pollution degree 3.

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: 1137 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, 24VAC/DC coil (SKU 11B25040024)
• Manufacturer documentation with installation and safety guidance
• Protective packaging for transit

Applications

• AC-1 general-purpose power switching up to 350 A Ith
• Multi‑pole load isolation and distribution in control assemblies
• Panels requiring 24VAC/DC coil control and screw-mounted devices
• Installations within Ui 1000 V and Uimp 8 kV insulation limits
• Sites up to 3,000 m altitude, pollution degree 3 environments

Safety note: Always isolate power before installation or maintenance, observe the specified 35 Nm terminal torque, and ensure application within the stated voltage, temperature, altitude and pollution degree ratings to maintain compliance.