11B31040060 - 4P CONTACTOR B310. 4 00 60V

Why Choose the 11B31040060?

Engineered for high-current switching, the Lovato B310 four-pole contactor (SKU 11B31040060) couples a 60 V AC/DC coil with robust power performance. It delivers 450 A Ith (AC1) and 320 A / 170 kW at 400 V (AC3), with UL/CSA 250 HP at 480 V. Rated Ui 1000 V and Uimp 8 kV, this screw-mounted contactor suits demanding industrial control and motor applications.

Designed for reliability, it achieves 10,000,000 mechanical cycles and operates from -50 to 70°C, up to 3000 m altitude, pollution degree 3. Terminal tightening torque is 35 Nm for secure connections. Conforming to IEC/EN 60947-1 and 60947-4-1, plus UL and CSA equivalents, this compact 1,110 g unit offers dependable performance across harsh environments and integrates easily into existing panels.

Key Benefits

• 450 A AC1 Ith rating for dependable high-current resistive switching.
• 320 A / 170 kW AC3 at 400 V for large motor loads.
• 60 V AC/DC coil works with AC or DC control circuits.
• Rated Ui 1000 V and Uimp 8 kV for insulation robustness.
• Wide -50 to 70°C operating range for harsh-site reliability.
• Ten-million-cycle mechanical life helps reduce downtime and servicing.
• Screw mounting and 35 Nm terminal torque ensure secure installation.
• Compliant with IEC/EN, UL, and CSA contactor standards.

Technical Specification

• Product type designation: B310
• Number of poles: 4
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Ith (IEC): 450 A
• Terminal tightening torque: 35 to 35 Nm
• Weight: 1110 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 B310 four-pole contactor with 60 V AC/DC coil (SKU 11B31040060)
• Integrated screw terminals as per specification
• Manufacturer technical documentation and datasheet

Applications

• Switching of resistive loads up to 450 A (AC1)
• Motor control up to 320 A / 170 kW at 400 V (AC3)
• High-power industrial machinery and distribution panels
• Pumps, compressors, and HVAC plant within applicable ratings
• Installations operating from -50 to 70°C or up to 3000 m altitude

Safety note: Installation must be performed by qualified personnel. Isolate power, verify the 60 V AC/DC coil rating, tighten terminals to 35 Nm, and comply with IEC/EN 60947-4-1 and local regulations.