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11B1250424110 – 4P CONTACTOR B1250.4.24 110/ 125VAC
Lovato 11B1250424110 four-pole industrial power contactor with 1250 A AC-1 current rating and 110–125 V AC control coil for industrial power switching applications.
Why Choose the Lovato 11B1250424110 B1250 Power Contactor?
The Lovato 11B1250424110 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 110–125 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 normally open main poles enable 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 11B1250424110 is suitable for high-power switchboards, industrial heating systems, distribution equipment 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.
- 110–125 V AC, 50/60 Hz operating coil.
- Four normally open main contacts for simultaneous multi-conductor switching.
- Integrated 2 normally open and 4 normally closed auxiliary contacts.
- High electrical insulation and impulse-withstand ratings for industrial installations.
Key Features
- Lovato B1250 power contactor series.
- Four normally open main power poles.
- 1250 A conventional free-air thermal current.
- 110–125 V AC control coil.
- 50/60 Hz coil frequency.
- Built-in 2NO + 4NC auxiliary contact arrangement.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Heavy-duty screw mounting for secure switchboard installation.
Reliable Four-Pole High-Current Power Control
Power contactors such as the Lovato 11B1250424110 allow high-current industrial loads to be switched using a lower-power electrical control circuit. Its four-pole design enables multiple conductors to be switched together, making it suitable for three-phase systems that also require neutral switching and other multi-pole power-control arrangements.
The integrated auxiliary contacts can provide contactor status indication, electrical interlocking and feedback to automation equipment. Combined with its high AC-1 current rating, robust construction and screw-mounted installation, 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.
- Heavy production and processing machinery.
- Power generation and energy-management equipment.
Technical Specifications
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| Coil Voltage Range | 100–130 V | |
|---|---|---|
| Voltage | 125 V | |
| Phase | Three Phase | |
| IP Rating | IP00 | |
| Poles | 4-pole | |
| Device Type | Contactor | |
| Auxiliary Contacts | 2NO + 4NC | |
| Coil Type | AC | |
| Current AC-1 | 1250 A | |
| Series | B1250 | |
| Product type | Four-pole power contactor | |
| Rated thermal current (Ith AC-1) | 1250 A | |
| Operational voltage | up to 690 V AC | |
| Control coil voltage | 110–125 V AC | |
| Number of poles | 4 | |
| Auxiliary contacts | 2NO + 4NC | |
| Operational frequency | 25–400 Hz | |
| Protection rating | IP00 | |
| Mounting type | Screw mounting | |
| Mechanical life | 5,000,000 operations | |
| Electrical life | 700,000 operations | |
| Operating temperature | -50 °C to +70 °C | |
| Weight | approx. 57.5 kg |
Frequently Asked Questions
What is the Lovato 11B1250424110 used for?
It is used for switching high-current four-pole electrical loads in industrial power-distribution, heating, machinery and automation systems.
What is the current rating of this contactor?
The contactor has a conventional free-air thermal and IEC AC-1 operating current rating of 1250 A at temperatures up to 40°C.
What control voltage does the contactor require?
The operating coil is designed for a 110–125 V AC, 50/60 Hz control supply.
How many main poles does this contactor have?
The 11B1250424110 has four normally open main power poles, allowing four conductors to be switched simultaneously.
Does the contactor include auxiliary contacts?
Yes. It includes 2 normally open and 4 normally closed auxiliary contacts for signalling, feedback and electrical interlocking.
Trusted for Heavy Industrial Power Switching
Lovato Electric B1250 contactors provide the high current capacity, robust construction and dependable switching performance required by industrial panel builders, system integrators and electrical engineers.
