Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
11B31040024 – 4P CONTACTOR B310.4.00 24VAC
Lovato 11B31040024 four-pole industrial contactor with 450A AC1 thermal current rating, 320A AC3 operational current and 24V AC/DC universal control coil for industrial automation and motor control systems.
Why Choose the LOVATO Electric 11B31040024 Four-Pole Contactor?
The LOVATO Electric 11B31040024 is a heavy-duty four-pole industrial power contactor designed for reliable switching of high-current electrical loads. Part of the proven LOVATO B310 contactor series, it delivers a conventional thermal current rating of 450 A (AC-1) and an operational current of 320 A (AC-3), making it ideal for industrial motor control, power distribution and heavy-duty automation systems.
This version is fitted with a versatile 24 V AC/DC control coil, allowing seamless integration into both AC and DC control circuits. The four-pole configuration enables simultaneous switching of four conductors, making it particularly suitable for applications requiring neutral switching or complete isolation of three-phase power circuits.
Engineered for demanding industrial environments, the 11B31040024 combines robust screw-mounted construction, high insulation performance and long mechanical life with compliance to major IEC, UL and CSA standards, ensuring dependable operation in control panels, switchboards and OEM machinery.
Key Advantages
- Heavy-duty four-pole industrial contactor.
- 450 A AC-1 thermal current rating.
- 320 A AC-3 operational current for demanding motor applications.
- 24 V AC/DC control coil for flexible control systems.
- Suitable for motors up to 170 kW at 400 V AC-3.
- Long mechanical life and robust industrial construction.
Key Features
- LOVATO B310 industrial contactor series.
- Four normally open main power poles.
- 450 A conventional thermal current (AC-1).
- 320 A AC-3 operational current.
- 24 V AC/DC control coil.
- 170 kW motor rating at 400 V AC-3.
- Rated insulation voltage of 1000 V.
- Mechanical life up to 10 million operations.
Reliable Four-Pole Industrial Switching
Four-pole contactors provide safe switching of high-current power circuits using a low-power control signal. They allow PLCs, relays, pushbuttons and automation controllers to safely operate industrial loads while electrically isolating the control and power circuits.
The LOVATO B310 series is engineered for demanding industrial installations where dependable switching, high current capacity and long service life are essential. Its four-pole configuration makes it suitable for power distribution, neutral switching and heavy-duty motor control applications.
Typical Applications
- Industrial motor control centres.
- Power distribution panels.
- Heating and resistive load switching.
- Industrial switchboards.
- OEM machinery.
- Process automation equipment.
- Three-phase systems with neutral switching.
- Heavy industrial electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Terminal Type | Bar / bolt | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 24 V | |
| Power | 170 kW | |
| Current | 320 A | |
| Voltage | 24 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 4-pole | |
| Device Type | Contactor | |
| Current AC-1 | 450 A | |
| Series | B310 Contactors | |
| Product type | Four-pole industrial contactor | |
| Number of poles | 4 | |
| Contact configuration | 4 NO | |
| IEC thermal current Ith (AC1) | 450 A | |
| Operational current AC3 at 400 V | 320 A | |
| Rated operational power AC3 at 400 V | 170 kW | |
| Operational current AC4 at 400 V | 110 A | |
| UL/CSA horsepower rating at 480 V | 250 HP | |
| Control coil voltage | 24 V AC/DC | |
| 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. 11.36 kg | |
| Dimensions | approx. 208 × 196 × 227 mm | |
| EAN | 8013975067154 | |
| 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 Electric 11B31040024 used for?
It is used for switching high-current four-pole electrical circuits in industrial motor control, power distribution and automation systems.
What current rating does this contactor have?
It offers a conventional thermal current rating of 450 A (AC-1) and an operational current of 320 A (AC-3).
What control voltage does the contactor use?
This model is equipped with a 24 V AC/DC control coil.
How many poles does this contactor have?
The 11B31040024 has four normally open main poles, allowing simultaneous switching of four conductors.
Where is this contactor typically installed?
It is commonly installed in industrial control panels, switchboards, motor control centres and heavy-duty automation systems.
Trusted for Heavy-Duty Industrial Control
LOVATO Electric B310 contactors are trusted worldwide by panel builders, OEM manufacturers and industrial engineers for dependable switching performance, high current capability and long operating life in demanding industrial environments.
