Why Choose the Lovato 11B630400440 Power Contactor?
The Lovato 11B630400440 is a heavy-duty four-pole power contactor designed for dependable switching of high-current electrical loads in industrial motor control, automation and power distribution systems. As part of the robust Lovato B630 contactor series, it is engineered for demanding installations that require substantial current capacity, secure electrical connections and reliable long-term performance.
This contactor provides an IEC conventional free-air thermal current rating of 800 A in AC-1 duty, making it suitable for high-power resistive loads, industrial heating equipment and electrical distribution circuits. Its four normally open main power poles allow four conductors to be switched simultaneously, supporting three-phase systems with switched neutral connections and other four-pole configurations.
With an electronically controlled 440–480 V AC/DC operating coil, the 11B630400440 offers flexible integration into both AC and DC industrial control circuits. Its screw-mounted construction, high insulation capability and robust industrial design make it suitable for installation in motor control centres, switchboards and heavy machinery.
Key Advantages
- Heavy-duty four-pole contactor for high-current industrial loads.
- 800 A AC-1 thermal current rating at ambient temperatures up to 40°C.
- Flexible 440–480 V AC/DC electronically controlled coil.
- 630 A AC-3 operational current at voltages up to 440 V.
- 355 kW AC-3 motor rating at 400 V.
- 1000 V rated insulation voltage for demanding electrical systems.
- Four normally open poles for simultaneous multi-conductor switching.
Key Features
- Lovato B630 power contactor series.
- Four normally open main power poles.
- 800 A IEC conventional thermal current.
- 440–480 V AC/DC control coil.
- 630 A / 355 kW AC-3 rating at 400 V.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Screw-mounted construction for secure industrial installation.
Reliable Four-Pole Switching for Industrial Systems
Power contactors such as the Lovato 11B630400440 allow high-current equipment to be controlled remotely through a lower-power electrical control circuit. Applying the specified voltage to the contactor coil closes all four main contacts, allowing electrical power to flow to the connected machinery or distribution circuit.
The four-pole configuration is particularly useful when three phase conductors and a neutral conductor must be switched simultaneously. Its high current capacity, AC/DC coil and durable construction support dependable integration into industrial switchboards, motor control centres and automated production systems.
Typical Applications
- Industrial motor control centres.
- Four-wire electrical distribution systems.
- High-power electrical heating equipment.
- Industrial switchboards and control panels.
- Heavy machinery and production equipment.
- Renewable energy and photovoltaic installations.
