The Lovato 11B4004SL00110 is a heavy-duty four-pole industrial contactor designed for reliable switching of high-current electrical loads in motor control, automation and power distribution systems. Part of the robust Lovato B400 contactor series, this model features a 110–125 V AC/DC control coil and is prepared for the installation of a Lovato G495 mechanical latch.
Unlike factory-latched variants, the 11B4004SL00110 is supplied without the mechanical latch installed. Its latch-ready construction allows the appropriate G495 accessory to be added when maintained switching is required, providing flexibility for panel builders, OEMs and industrial control engineers.
With an IEC thermal current rating of 550 A in AC-1 duty and an operational rating of 420 A / 225 kW at 400 V in AC-3 duty, this contactor is suitable for controlling large industrial motors, resistive loads and high-capacity electrical distribution circuits.
Key Advantages
Heavy-duty four-pole industrial contactor for high-current switching.
550 A AC-1 thermal current rating for demanding electrical loads.
420 A AC-3 operational current at 400 V.
Supports motors rated up to 225 kW at 400 V.
Prepared for installation of the Lovato G495 mechanical latch.
110–125 V AC/DC coil provides flexible control-circuit compatibility.
Key Features
Lovato B400 contactor series.
Four main power poles.
110–125 V AC/DC operating coil.
Predisposed for a G495 mechanical latch.
550 A IEC AC-1 thermal current.
420 A / 225 kW IEC AC-3 rating at 400 V.
Screw-mounted construction for industrial panels and switchgear.
Certified for use in IEC and North American electrical installations.
Technical Specifications
Manufacturer: Lovato Electric
Series: B400 Contactors
Model: 11B4004SL00110
Product type: Four-pole industrial contactor
Number of poles: 4
Coil type: AC/DC coil
Rated coil voltage: 110–125 V AC/DC
Mechanical latch compatibility: Predisposed for Lovato G495 latch
Mechanical latch included: No
IEC thermal current, AC-1: 550 A
IEC operational current, AC-3 at 400 V: 420 A
Motor power, AC-3 at 400 V: 225 kW
Mounting type: Screw mounting
Product weight: approximately 11.26 kg
Package dimensions: 208 × 196 × 227 mm
EAN: 8013975149409
HS code: 85365080
Certifications: CCC, EAC and cULus
IEC conformity: IEC/EN 60947-1 and IEC/EN 60947-4-1
North American conformity: UL 60947-1, UL 60947-4-1 and CSA C22.2 No. 60947-1/-4-1
Reliable High-Current Switching for Industrial Systems
Industrial contactors such as the Lovato 11B4004SL00110 allow large motors and electrical loads to be controlled through a lower-power control circuit. This helps provide dependable remote switching, integration with automation systems and safe coordination with overload and short-circuit protection devices.
The contactor’s compatibility with the G495 mechanical latch also allows it to be adapted for maintained switching applications. Once the optional latch is installed, the switching position can be retained mechanically without requiring the operating coil to remain continuously energised.
Typical Applications
Large industrial motor starters.
Motor control centres and switchboards.
Industrial automation and process machinery.
High-current resistive load switching.
Power distribution and control panels.
Maintained switching systems using an optional G495 latch.
Technical Specifications
Power
225 kW
Current
420 A
Voltage
125 V
Phase
Three Phase
IP Rating
IP20
Series
B400 Contactors
Product type
Four-pole industrial contactor
Number of poles
4
Contact configuration
4 NO
Mechanical latch compatibility
Predisposed for G495 mechanical latch
IEC thermal current Ith (AC1)
550 A
Operational current AC3 at 400 V
420 A
Rated operational power AC3 at 400 V
225 kW
Control coil voltage
110...125 V AC/DC
Type of coil
AC/DC universal coil
Rated insulation voltage
690 V
Impulse withstand voltage
8 kV
Supply frequency
50/60 Hz
Mounting type
Screw mounting
Terminal type
Bolt connection
Protection rating
IP20
Operating temperature
-50 °C to +70 °C
Weight
approx. 11.26 kg
Package dimensions
approx. 208 × 196 × 227 mm
EAN
8013975149409
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 11B4004SL00110 used for?
It is used for switching large industrial motors, resistive loads and high-current electrical circuits in automation and power distribution systems.
What control voltage does this contactor require?
The contactor is fitted with a 110–125 V AC/DC operating coil.
Is a mechanical latch included?
No. The contactor is supplied without a mechanical latch but is prepared for installation of the compatible Lovato G495 latch.
What is the AC-3 rating of this contactor?
It is rated at 420 A and 225 kW at 400 V under IEC AC-3 motor-switching conditions.
How many poles does the contactor have?
The Lovato 11B4004SL00110 features four main power poles.
Trusted for Heavy-Duty Industrial Switching
Lovato B400 contactors provide dependable high-current switching for industrial motor control, automation and electrical distribution applications, with latch-ready models offering additional flexibility for maintained-control systems.
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Power
225 kW
Current
420 A
Voltage
125 V
Phase
Three Phase
IP Rating
IP20
Series
B400 Contactors
Product type
Four-pole industrial contactor
Number of poles
4
Contact configuration
4 NO
Mechanical latch compatibility
Predisposed for G495 mechanical latch
IEC thermal current Ith (AC1)
550 A
Operational current AC3 at 400 V
420 A
Rated operational power AC3 at 400 V
225 kW
Control coil voltage
110...125 V AC/DC
Type of coil
AC/DC universal coil
Rated insulation voltage
690 V
Impulse withstand voltage
8 kV
Supply frequency
50/60 Hz
Mounting type
Screw mounting
Terminal type
Bolt connection
Protection rating
IP20
Operating temperature
-50 °C to +70 °C
Weight
approx. 11.26 kg
Package dimensions
approx. 208 × 196 × 227 mm
EAN
8013975149409
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
No documents available for this product.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...