Why Choose the LOVATO Electric 11B310400110 Four-Pole Contactor?
The LOVATO Electric 11B310400110 is a heavy-duty four-pole industrial power contactor designed for reliable switching of high-current resistive and inductive electrical loads. As part of the robust LOVATO B310 contactor series, it provides a conventional free-air thermal current rating of 450 A in AC-1 duty, making it suitable for demanding power distribution, heating, lighting and industrial control applications.
This contactor features a versatile 110–125 V AC/DC control coil, allowing it to operate with compatible alternating-current or direct-current control supplies. Its four-pole configuration enables simultaneous switching of four conductors, making it particularly useful in installations requiring neutral switching or control of multipole power circuits.
With a robust screw-mounted construction, a rated insulation voltage of 1000 V and compliance with major IEC, UL and CSA standards, the 11B310400110 is engineered for dependable operation in industrial control panels, switchboards, machinery and power-management systems.
Key Advantages
- Heavy-duty four-pole contactor for industrial power switching.
- 450 A conventional thermal current rating in AC-1 duty.
- 110–125 V AC/DC control coil for flexible integration.
- Four-pole configuration supports simultaneous switching of multiple conductors.
- High 1000 V rated insulation voltage.
- Compliant with recognised IEC, UL and CSA contactor standards.
Key Features
- LOVATO Electric B310 power contactor series.
- Four main power poles.
- 450 A AC-1 conventional thermal current.
- 320 A AC-3 operational current at up to 440 V.
- 110–125 V AC/DC control coil.
- 170 kW motor rating at 400 V AC-3.
- 8 kV rated impulse withstand voltage.
- Screw mounting for secure industrial installation.
Reliable Four-Pole Power Switching
Four-pole contactors allow several conductors to be switched simultaneously using a single electrical control signal. When the control coil is energised, all four main contacts operate together, enabling reliable remote control of multipole loads through PLCs, relays, timers, pushbuttons and automated control systems.
The LOVATO Electric 11B310400110 is particularly suitable for AC-1 applications involving resistive or slightly inductive loads, including electric heating systems, lighting installations and power-distribution circuits. Its high current capacity and four-pole configuration also make it useful where the neutral conductor must be switched together with three phase conductors.
Typical Applications
- Industrial heating and resistive load control.
- Four-wire three-phase power circuits.
- Neutral switching applications.
- Industrial lighting systems.
- Power distribution and transfer panels.
- Motor control centres and switchboards.
- Manufacturing and process-control equipment.
- Heavy-duty OEM machinery and automation systems.
