We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
11B4000024 Lovato b series 3 pole maxi contactor 420A 225kW 550A 24VAC/DC
MPN: 11B4000024
Alt. SKU: B4000024
Why Choose the 11B4000024?
The Lovato B400 three-pole contactor (SKU 11B4000024) delivers robust switching performance for demanding AC-3 duties at 400 V. With a 24 VAC/DC universal coil, 420 A AC-3 current (225 kW) and 550 A AC-1 rating, it suits heavy industrial motor control. Screw mounting and three-pole architecture simplify panel integration across new builds and retrofits.
Engineered for reliability, the B400 offers 1000 V rated insulation (Ui) and 8 kV impulse withstand, plus terminals rated to 35 Nm tightening torque. Its mechanical life reaches 10,000,000 cycles, with an operating range from -50 to +70 °C and use up to 3000 m altitude, pollution degree 3. UL/CSA horsepower rating is 350 HP at 480 V, and conformity includes IEC/EN 60947-1 and 60947-4-1.
Key Benefits
- 420 A AC-3 at 400 V, 225 kW motor switching capability
- 550 A AC-1 rating for high-capacity resistive loads
- Universal 24 VAC/DC coil simplifies control power selection
- High endurance: 10,000,000 mechanical operating cycles
- Robust insulation: Ui 1000 V and 8 kV impulse withstand
- Reliable in extremes: -50 to +70 °C operating temperature
- Secure screw mounting; terminals tighten to 35 Nm
- UL/CSA 350 HP at 480 V; IEC/EN 60947 compliance
Technical Specification
- Product type designation: B400
- Number of poles: 3
- Rated insulation voltage Ui (IEC/EN): 1000 V
- Rated impulse withstand voltage Uimp: 8 kV
- Ith (IEC): 550 A
- Terminal tightening torque: 35 to 35 Nm
- Weight: 9770 g
- Mechanical life: 10000000 cycles
- Operating temperature: -50 to 70 °C
- Storage temperature: -60 to 80 °C
- Max altitude: 3000 m
- Pollution degree: 3
What’s Included
- Lovato B400 three-pole contactor with integrated 24 VAC/DC coil (SKU 11B4000024)
- Pre-fitted screw terminals for panel mounting
- Manufacturer’s instructions/datasheet (digital or in-box, as supplied)
Applications
- AC-3 duty three-phase motor control at 400 V up to 225 kW
- High-current industrial switching requiring 420 A AC-3 performance
- AC-1 resistive load switching up to 550 A
- Installations needing IEC/EN and UL/CSA compliant contactors
- Low-temperature or harsh environments, down to -50 °C, pollution degree 3
Frequently Asked Questions
What is the coil voltage and type?
It has an AC/DC coil rated at 24 VAC/DC.
What is the AC-3 rating at 400 V?
It is rated 420 A AC-3 with 225 kW motor power.
Does it meet international standards?
Yes, it conforms to IEC/EN 60947-1/-4-1, UL 60947-1/-4-1 and CSA C22.2 60947-1/-4-1.
What mounting and terminal torque are specified?
It is screw mounted, with terminals tightened to 35 Nm.
What are the operating conditions and endurance?
Operating temperature is -50 to +70 °C, altitude up to 3000 m, pollution degree 3; mechanical life is 10,000,000 cycles.
Safety note: Installation and maintenance must be performed by qualified personnel. Isolate all power before work, observe specified tightening torque and environmental limits, and follow applicable IEC/EN, UL, and CSA standards.
| Manufacturer Part Number | 11B4000024 |
|---|---|
| HS Code | 85365080 |
| Manufacturer | Lovato |
| Alternative Product SKU | B4000024 |
| KW Rating | 225kW |
| Number of Poles | 3 Pole |
| AC3 Amperage | 420A |
| AC1 Amperage | 550A |
| Barcode | 8013975026625 |
Write Your Own Review
