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11B5000048 – 3P CONTACTOR B500.00 48VAC/DC
Lovato 11B5000048 heavy-duty three-pole industrial contactor with 520 A AC3 operational current rating and 48 V AC/DC operating coil for industrial motor control and power switching applications.
£2,070.31
Why Choose the Lovato 11B5000048 Contactor?
The Lovato 11B5000048 is a heavy-duty three-pole industrial power contactor designed for reliable switching of large three-phase motors and high-current electrical loads. As part of the robust Lovato B500 contactor series, it combines a high switching capacity with a versatile 48 V AC/DC control coil for integration into industrial automation and motor-control systems.
Engineered for demanding operating environments, the contactor offers dependable electrical performance, high mechanical endurance and secure screw mounting. Its three normally open main poles and heavy-duty power terminals make it suitable for motor control centres, switchgear assemblies, OEM machinery and industrial power-control panels.
With a conventional free-air thermal current rating of 700 A and an IEC AC-3 operational rating of 520 A / 290 kW at 400 V, the Lovato 11B5000048 provides the capacity required for controlling large pumps, compressors, conveyors and process machinery.
Key Advantages
- Heavy-duty three-pole industrial power contactor.
- 700 A AC-1 operational current at ambient temperatures up to 40 °C.
- 520 A AC-3 operational current for demanding motor-control duties.
- Suitable for motors rated up to 290 kW at 400 V.
- 48 V AC/DC operating coil for flexible control-circuit integration.
- High electrical and mechanical endurance for industrial applications.
Key Features
- Lovato B500 power contactor series.
- Three normally open main power poles.
- 48 V AC/DC control coil.
- 700 A IEC AC-1 current rating at 40 °C.
- 520 A / 290 kW IEC AC-3 rating at 400 V.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Mechanical endurance of up to 5 million operating cycles.
Reliable High-Current Motor Control
Industrial contactors such as the Lovato 11B5000048 allow large motors and high-power electrical equipment to be controlled through a lower-power control circuit. This supports remote switching, automated sequencing and integration with programmable controllers, overload relays and industrial safety systems.
The B500 contactor’s high current capacity, robust construction and broad operating-temperature range make it suitable for intensive industrial applications where reliable switching and long-term operational stability are essential.
Typical Applications
- Large three-phase industrial motor starters.
- Motor control centres and electrical switchboards.
- Industrial pumps, compressors and ventilation systems.
- Heavy conveyors and material-handling equipment.
- Process manufacturing and production machinery.
- Industrial automation and high-current power-control panels.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 42–48 V | |
| Current | 520 A | |
| Power | 290 kW | |
| Voltage | 48 V | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 48 V AC, 48 V DC | |
| Device Type | Contactor | |
| Current AC-1 | 700 A | |
| Series | B500 Contactors | |
| Product type | Three-pole power contactor | |
| Number of poles | 3 | |
| IEC operational current Ith (AC1) | 700 A | |
| IEC operational current Ie (AC3) | 520 A | |
| Motor power rating | 290 kW at 400 V | |
| Rated operational power at 690 V | 416 kW | |
| Type of coil | AC/DC operating coil | |
| Rated coil voltage | 48 V AC/DC | |
| Rated insulation voltage Ui | 1000 V | |
| Rated impulse withstand voltage Uimp | 8 kV | |
| Frequency | 25–400 Hz | |
| Mounting type | Screw mounting | |
| Connection type | Screw terminals | |
| Operating temperature | -50 °C to +70 °C | |
| Protection category | Pollution degree 3 | |
| Weight | Approx. 17.98 kg | |
| Dimensions | Approx. 270 × 194 × 263 mm | |
| EAN | 8013975018491 | |
| Compliance standards | IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1 | |
| Certifications | CCC, EAC, cULus |
Frequently Asked Questions
What is the Lovato 11B5000048 used for?
It is used to switch large three-phase motors and other high-current electrical loads in industrial automation, machinery and power-control systems.
What control voltage does this contactor require?
The contactor is equipped with a 48 V AC/DC operating coil.
What is the AC-3 rating of this contactor?
The 11B5000048 is rated at 520 A and 290 kW at 400 V under IEC AC-3 motor-switching conditions.
What is the AC-1 current rating?
The contactor has an IEC AC-1 operational current rating of 700 A at ambient temperatures up to 40 °C.
How many main contacts does the contactor have?
The Lovato 11B5000048 features three normally open main power contacts.
Trusted for Heavy-Duty Industrial Switching
Lovato B500 contactors provide dependable high-current switching for large industrial motors, automation equipment and power-control systems operating in demanding production environments.
