11B630400110 – 4P CONTACTOR B630.4.00 110/125

Why Choose the Lovato 11B630400110 Power Contactor?

The Lovato 11B630400110 is a heavy-duty four-pole power contactor designed for reliable 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 requiring substantial current capacity, secure electrical connections and dependable 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 a rated 110–125 V AC/DC operating coil, the 11B630400110 offers flexible integration into industrial control systems using either AC or DC control power. Its screw-mounted construction, high insulation capability and robust industrial design make it suitable for 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 110–125 V AC/DC control coil.
• 630 A AC-3 operational current at 400 V.
• 355 kW motor rating at 400 V in AC-3 duty.
• Four normally open power poles for simultaneous multi-conductor switching.
• Certified to major IEC, UL and CSA contactor standards.

Key Features

• Lovato B630 power contactor series.
• Four normally open main power poles.
• 800 A IEC conventional thermal current.
• 110–125 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.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: B630
• Model: B630
• Order code: 11B630400110
• Product type: Four-pole power contactor
• Number of poles: 4
• Main contact configuration: 4 normally open
• Coil type: AC/DC coil
• Rated coil voltage: 110–125 V AC/DC
• IEC thermal current Ith, AC-1 at ≤40°C: 800 A
• IEC operational current, AC-1 at ≤55°C: 640 A
• IEC operational current, AC-1 at ≤70°C: 540 A
• IEC operational current, AC-3 at 400 V: 630 A
• Rated AC-3 motor power at 400 V: 355 kW
• Rated insulation voltage Ui: 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Operational frequency: 25–400 Hz
• Mounting type: Screw fixing
• Approximate dimensions (H × W × D): 270 × 259 × 263 mm
• Weight: approx. 21.88 kg
• Operating temperature: -50°C to +70°C
• EAN: 8013975026571
• HS code: 85365080
• Certifications: CCC, EAC and cULus
• Conformity: IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1 and applicable CSA standards

Reliable Four-Pole Switching for Industrial Systems

Power contactors such as the Lovato 11B630400110 allow high-current electrical equipment to be switched remotely through a lower-power control circuit. Applying the specified voltage to the coil closes the four main contacts, allowing electrical power to flow to the connected machinery or distribution circuit.

The four-pole configuration is particularly useful where three phase conductors and a neutral conductor must be switched simultaneously. Its high current rating, AC/DC coil and robust industrial construction support dependable integration into switchboards, motor control centres and automated production equipment.

Typical Applications

• Industrial motor control centres.
• Four-wire power distribution systems.
• High-power electrical heating equipment.
• Industrial switchboards and control panels.
• Heavy machinery and production equipment.
• Renewable energy and photovoltaic installations.