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11B25040048 – 4P CONTACTOR B250.4.00 48V
Lovato 11B25040048 heavy-duty three-pole industrial contactor with 265A AC3 operational current rating and 48V AC control coil for industrial motor control systems.
Why Choose the Lovato 11B25040048 Four-Pole Contactor?
The Lovato 11B25040048 is a heavy-duty four-pole power contactor designed for dependable switching of high-current electrical loads in industrial automation, power distribution and control systems. As part of the robust Lovato B250 contactor series, it is suitable for panel builders, OEM machine manufacturers and electrical engineers requiring reliable power switching.
This contactor combines four normally open main contacts with an electronically controlled AC/DC coil, helping provide consistent operation, high electrical endurance and long mechanical service life. Its durable construction and bolt-connected main terminals make it suitable for demanding industrial installations.
With a conventional thermal current rating of 350 A, an AC-3 operational current of 265 A and a 48 V AC/DC control coil, the 11B25040048 is ideal for switching motors, resistive loads and high-power electrical equipment.
Key Advantages
- Heavy-duty four-pole industrial power contactor.
- 350 A AC-1 thermal current rating for high-current loads.
- 265 A AC-3 operational current at up to 440 V.
- 48 V AC/DC control coil for flexible control-circuit integration.
- Four normally open main contacts for multi-pole load switching.
- Robust construction designed for demanding industrial environments.
Key Features
- Lovato B250 power contactor series.
- Four normally open (4NO) main poles.
- 350 A conventional free-air thermal current.
- 265 A AC-3 operational current.
- 140 kW AC-3 motor rating at 400 V.
- 48 V AC/DC operating coil.
- Rated insulation voltage of 1000 V.
- Bolt-connected main circuit terminals and screw mounting.
Reliable Industrial Power Switching
Power contactors such as the Lovato 11B25040048 allow high-current electrical loads to be switched using a lower-power control signal. This enables motors, heating systems and industrial equipment to be operated remotely through control panels, PLC systems and automated machinery.
The four-pole configuration allows multiple conductors or circuits to be switched simultaneously. Its 48 V AC/DC coil supports both alternating-current and direct-current control systems, while the high current ratings make it suitable for demanding industrial power applications.
Typical Applications
- Industrial motor control centres.
- Power distribution panels and switchboards.
- Heating and resistive load control.
- HVAC and ventilation equipment.
- OEM machinery and production equipment.
- Industrial automation and process-control systems.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Poles | 4-pole | |
| Coil Voltage Range | 42–48 V | |
| Power | 140 kW | |
| Current | 265 A | |
| Voltage | 48 V | |
| Phase | Three Phase | |
| Device Type | Contactor | |
| Coil Type | AC | |
| Number of poles | 4 | |
| Series | B250 Contactors | |
| Product type | Three-pole contactor | |
| Operational current (AC3) | 265 A | |
| Rated operational power at 400 V AC3 | 140 kW | |
| Control coil voltage | 48 V AC | |
| Coil frequency | 50 / 60 Hz | |
| Main contacts | 3 NO | |
| Insulation voltage | 690 V | |
| Mounting type | Panel / screw mounting | |
| Terminal type | Screw terminals | |
| Operating temperature | approx. -50 °C to +70 °C | |
| Weight | approx. 9.1 kg | |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-1 |
Frequently Asked Questions
What is the Lovato 11B25040048 used for?
It is used to switch high-current electrical loads in industrial motor control, power distribution, heating and automation applications.
How many poles does this contactor have?
The contactor has four normally open main poles, allowing four circuits or conductors to be switched simultaneously.
What control voltage does the coil require?
The operating coil is designed for a nominal control voltage of 48 V AC or 48 V DC.
What is the current rating of the Lovato 11B25040048?
It has a conventional thermal current rating of 350 A and an AC-3 operational current rating of 265 A.
Is the Lovato 11B25040048 still in production?
The 11B25040048 is listed by Lovato Electric as an out-of-catalogue product, so availability may be limited to remaining distributor stock or suitable replacement models.
Trusted by Industrial Professionals Worldwide
Lovato B250 contactors have been widely used by electrical engineers, machine builders and panel manufacturers for reliable high-current switching and dependable operation in demanding industrial installations.
