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11B400L00110110 – 3P CONTACTOR 110/125V C/W LATCH 110VAC
Lovato 11B400L00110110 three-pole industrial contactor with integrated mechanical latch, 550A AC1 thermal current rating, 420A AC3 operational current and 110…125V AC/DC universal control coil for industrial automation and motor control systems.
Why Choose the Lovato 11B400L00110110 Contactor?
The Lovato 11B400L00110110 is a heavy-duty three-pole industrial power contactor designed for dependable switching of large motors and high-current electrical loads. Part of the Lovato B400 contactor series, it combines a 110–125 V AC/DC operating coil with a factory-fitted G495 mechanical latch.
The mechanical latch uses a 110–125 V AC release circuit and retains the contactor in its operated position without requiring the main coil to remain continuously energised. This makes the contactor particularly suitable for maintained switching systems where reduced coil consumption and secure contact retention are important.
With an IEC conventional thermal current rating of 550 A and an AC-3 operational rating of 420 A / 225 kW at 400 V, the Lovato 11B400L00110110 provides the switching capacity required for large industrial motors, machinery and power-control installations.
Key Advantages
- Heavy-duty three-pole industrial contactor for demanding switching applications.
- 550 A AC-1 current rating for high-current resistive and distribution loads.
- 420 A AC-3 operational current for industrial motor control.
- Suitable for motors rated up to 225 kW at 400 V.
- Factory-fitted Lovato G495 mechanical latch for maintained operation.
- 110–125 V AC/DC operating coil with a 110–125 V AC latch circuit.
Key Features
- Lovato B400 power contactor series.
- Three main power poles.
- 110–125 V AC/DC operating coil.
- 110–125 V AC mechanical latch voltage.
- Supplied with a factory-installed G495 mechanical latch.
- 550 A IEC AC-1 operational current.
- 420 A / 225 kW IEC AC-3 rating at 400 V.
- Screw-mounted design for switchboards and industrial control panels.
Reliable Maintained Switching for Industrial Systems
Industrial contactors allow large motors and high-power electrical loads to be controlled using a comparatively low-power control circuit. The Lovato 11B400L00110110 adds a mechanical latching mechanism that retains the contactor in its operated position after the main operating coil has been de-energised.
This maintained operating principle can reduce continuous coil power consumption while helping prevent unwanted changes in contact position. Its high current capacity and three-pole configuration make it suitable for motor control centres, industrial machinery and high-capacity electrical distribution systems.
Typical Applications
- Large three-phase industrial motor starters.
- Maintained switching and latching control circuits.
- Motor control centres and industrial switchboards.
- Pumps, compressors and ventilation equipment.
- Conveyors and heavy process machinery.
- Industrial automation and power distribution systems.
Technical Specifications
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| Terminal Type | Bar / bolt | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 100–130 V | |
| Power | 225 kW | |
| Current | 420 A | |
| Voltage | 125 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 3-pole | |
| Device Type | Contactor | |
| Current AC-1 | 550 A | |
| Series | B400 Contactors | |
| Product type | Three-pole industrial contactor with mechanical latch | |
| Number of poles | 3 | |
| Contact configuration | 3 NO | |
| Mechanical latch | G495 integrated mechanical latch | |
| IEC thermal current Ith (AC1) | 550 A | |
| Operational current AC3 at 400 V | 420 A | |
| Operational current AC4 at 400 V | 200 A | |
| Rated operational power AC3 at 400 V | 225 kW | |
| Power rating at 690 V | 598 kW | |
| UL/CSA horsepower rating at 480 V | 350 HP | |
| Control coil voltage | 110...125 V AC/DC | |
| Mechanical latch voltage | 110...125 V AC | |
| Type of coil | AC/DC universal coil | |
| Rated insulation voltage | 1000 V | |
| Impulse withstand voltage | 8 kV | |
| Operational frequency | 25 to 400 Hz | |
| Mounting type | Screw mounting | |
| Terminal type | Bolt connection | |
| Protection rating | IP20 | |
| Operating temperature | -50 °C to +70 °C | |
| Weight | approx. 10.24 kg | |
| Package dimensions | approx. 260 × 148 × 227 mm | |
| EAN | 8013975053256 | |
| HS code | 85365080 | |
| Compliance | IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1, CSA C22.2 n° 60947-1, CSA C22.2 n° 60947-4-1 |
Frequently Asked Questions
What is the Lovato 11B400L00110110 used for?
It is used for switching large three-phase motors and other high-current electrical loads in industrial automation, machinery and power-control systems.
What operating coil voltage does this contactor require?
The contactor is equipped with a 110–125 V AC/DC operating coil.
Does the contactor include a mechanical latch?
Yes. It is supplied with a factory-fitted Lovato G495 mechanical latch for maintained switching operation.
What voltage operates the mechanical latch?
The fitted mechanical latch is designed for a 110–125 V AC control supply.
What is the AC-3 rating of this contactor?
The contactor is rated at 420 A and 225 kW at 400 V under IEC AC-3 motor-switching conditions.
Trusted for Heavy-Duty Industrial Switching
Lovato B400 contactors provide dependable high-current switching for industrial motor control and power-distribution systems, while factory-fitted mechanical latches support efficient and reliable maintained operation.
