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11B11500440 – 3P CONTACTOR B115.00 440/480V
Lovato 11B11500440 is a B115 three-pole power contactor with a 110 A AC-3 rating, 61 kW motor capacity at 400 V and a 440–480 V AC/DC control coil for industrial motor switching.
Why Choose the Lovato 11B11500440 Three-Pole Contactor?
The Lovato 11B11500440 is a heavy-duty three-pole power contactor designed for controlling industrial motors and high-current electrical loads. As part of the Lovato B Series, this B115 contactor provides dependable electromagnetic switching for machinery, automation systems and electrical distribution equipment.
Its three normally open main poles provide an AC-3 operational current rating of 110 A at voltages up to 440 V. The contactor also supports three-phase motors rated up to 61 kW at 400 V AC, making it suitable for demanding motor starting and switching applications.
The 11B11500440 features an AC/DC coil rated from 440–480 V, allowing it to operate from either AC or DC control circuits within this voltage range. Screw mounting, robust power terminals and a mechanical life of 10,000,000 operating cycles support reliable integration into industrial control panels.
Key Advantages
- Heavy-duty three-pole contactor for industrial motor control.
- 110 A AC-3 operational current rating for demanding loads.
- Controls motors rated up to 61 kW at 400 V AC.
- 440–480 V AC/DC coil supports high-voltage control circuits.
- High mechanical endurance supports frequent industrial switching.
- Compliance with IEC, EN, UL and CSA contactor standards.
Key Features
- Lovato B115 power contactor.
- Three normally open main poles.
- 110 A AC-3 current rating at up to 440 V.
- 160 A conventional free-air thermal current.
- 61 kW AC-3 motor rating at 400 V.
- 440–480 V AC/DC control coil.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 8 kV.
- Screw mounting with heavy-duty power terminals.
- Mechanical endurance of 10,000,000 cycles.
Reliable Switching for High-Power Motors
Power contactors use an electromagnetic coil to open and close their main contacts, enabling high-current equipment to be controlled by a separate command circuit. The Lovato 11B11500440 provides three normally open poles for switching three-phase motors and other industrial AC loads.
Its 440–480 V AC/DC coil supports control systems operating at higher voltages, while the contactor’s current and motor power ratings suit demanding machinery. Auxiliary contacts, overload protection and mechanical interlocking accessories can be selected separately to create a complete motor control assembly.
Typical Applications
- Three-phase industrial motor starters.
- Pumps, fans and compressor systems.
- Conveyors and material-handling equipment.
- Industrial heating and resistive loads.
- Production and processing machinery.
- Electrical control panels and automation systems.
Technical Specifications
| Manufacturer | Lovato Electric |
|---|---|
| Series | B Series |
| Model | 11B11500440 |
| Product designation | B115 |
| Product type | Three-pole power contactor |
| Number of poles | 3 |
| Main contact configuration | 3NO |
| Coil type | AC/DC |
| Rated control voltage | 440–480 V AC/DC |
| AC coil frequency | 50 / 60 Hz |
| AC-3 operational current | 110 A at up to 440 V |
| AC-4 operational current | 47 A at 400 V |
| Conventional free-air thermal current | 160 A |
| AC-1 operational current | 160 A at up to 40 °C |
| AC-3 motor rating | 61 kW at 400 V |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 8 kV |
| Operational frequency range | 25–400 Hz |
| Mechanical life | 10,000,000 cycles |
| Electrical life | 1,100,000 cycles |
| Operating temperature | −50 to +70 °C |
| Maximum operating altitude | 3000 m |
| Mounting type | Screw mounting |
| Power terminal protection | IP00 |
| Weight | 5195 g |
| Applicable standards | IEC/EN 60947-1 and IEC/EN 60947-4-1 |
Frequently Asked Questions
What is the Lovato 11B11500440 used for?
It is used to switch three-phase motors and other high-current electrical loads in industrial control and automation systems.
What is the AC-3 current rating of this contactor?
The Lovato 11B11500440 has an AC-3 operational current rating of 110 A at voltages up to 440 V.
What motor power can the contactor control?
It is rated to control three-phase motors with an AC-3 operational power of up to 61 kW at 400 V.
What control voltage does the coil require?
The contactor has an AC/DC coil rated for a control voltage of 440–480 V AC/DC.
How many main poles does the contactor have?
The 11B11500440 has three normally open main poles for switching three-phase electrical loads.
Trusted Industrial Switching from Lovato
Lovato B Series contactors provide panel builders, machine manufacturers and automation engineers with robust switching performance for industrial motors and high-current electrical loads.
