Why Choose the Lovato 11B1250424220 B1250 Power Contactor?
The Lovato 11B1250424220 is a heavy-duty four-pole power contactor engineered for dependable switching of exceptionally high-current industrial electrical loads. Part of the robust Lovato B1250 contactor series, this model provides an IEC AC-1 operating current rating of 1250 A and features a 220–240 V AC, 50/60 Hz operating coil.
Designed for demanding industrial power-control applications, the B1250 contactor combines substantial switching capacity with reliable mechanical and electrical performance. Its four-pole configuration enables simultaneous control of four conductors, while the integrated 2NO + 4NC auxiliary contacts support signalling, electrical interlocking and control-system feedback.
With a conventional free-air thermal current of 1250 A at temperatures up to 40°C, a rated insulation voltage of 1000 V and an impulse withstand voltage of 8 kV, the 11B1250424220 is suitable for high-power switchboards, industrial heating systems, energy infrastructure and heavy process machinery.
Key Advantages
- Heavy-duty four-pole contactor for high-current industrial switching.
- 1250 A IEC AC-1 operating current at temperatures up to 40°C.
- 220–240 V AC, 50/60 Hz operating coil.
- Four main power poles for simultaneous multi-conductor switching.
- Integrated 2 normally open and 4 normally closed auxiliary contacts.
- High making and breaking capacity for demanding industrial loads.
Key Features
- Lovato B1250 power contactor series.
- Four main power poles.
- 1250 A conventional free-air thermal current.
- 220–240 V AC control coil.
- 50/60 Hz coil frequency.
- Built-in 2NO + 4NC auxiliary contact arrangement.
- 6300 A RMS making capacity.
- 1000 V rated insulation voltage.
- Heavy-duty screw mounting for secure switchboard installation.
Reliable Four-Pole High-Current Power Control
Power contactors such as the Lovato 11B1250424220 allow high-current industrial loads to be switched using a lower-power electrical control circuit. Its four-pole design enables multiple conductors to be controlled together, making it suitable for three-phase systems requiring neutral switching and other multi-pole power-control arrangements.
The integrated auxiliary contacts provide status indication, electrical interlocking and feedback to automation equipment. Combined with its high AC-1 rating, substantial making and breaking capacities and robust construction, the B1250 contactor supports dependable operation in heavy industrial power systems.
Typical Applications
- Four-pole industrial power-distribution systems.
- Three-phase and neutral load switching.
- Industrial heating and resistive load systems.
- High-current switchboards and control panels.
- Renewable energy and photovoltaic installations.
- Heavy production and processing machinery.
