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11B40000110 Lovato b series 3 pole maxi contactor 420A 225kW 550A 110VAC/DC
MPN: 11B40000110
Alt. SKU: B40000110
Why Choose the 11B40000110?
The Lovato B400 three‑pole contactor (SKU 11B40000110) is engineered for heavy‑duty motor control, delivering 420 A AC‑3 at 400 V (225 kW) with an AC/DC coil rated 110…125 V. It achieves 550 A Ith (AC‑1) and provides a rated insulation voltage Ui of 1000 V and 8 kV impulse withstand, supporting robust switching performance in demanding industrial environments. UL/CSA horsepower rating is 350 HP at 480 V.
Built for longevity and reliability, the B400 offers a mechanical life of 10,000,000 cycles and secure screw mounting with 35 Nm terminal tightening torque. It operates from −50 to 70 °C, up to 3000 m altitude, Pollution Degree 3. Compliance includes IEC/EN 60947‑1/‑4‑1, UL and CSA standards, while a Sustainability certification supports responsible procurement without compromising performance.
Key Benefits
- High switching capacity: 420 A AC‑3 at 400 V, 225 kW.
- Wide coil range: AC/DC 110…125 V for flexible control.
- Robust insulation: Ui 1000 V and 8 kV impulse withstand.
- Long service life: 10,000,000 mechanical cycles for reliability.
- Strong thermal rating: 550 A Ith (AC‑1) capability.
- Certified to IEC, UL and CSA standards for compliance.
- Secure installation with screw mounting and 35 Nm terminal torque.
- UL/CSA horsepower rating: 350 HP at 480 V.
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: 9620 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 3‑pole contactor (11B40000110)
- Integrated AC/DC coil, 110…125 V
- Screw terminal set for power and control connections
- Manufacturer documentation
Applications
- Heavy‑duty motor starters up to 225 kW at 400 V AC‑3
- Pumps, compressors and conveyors requiring high AC‑3 switching currents
- Industrial HVAC and refrigeration plant controls
- Power distribution and switching in process and manufacturing lines
Frequently Asked Questions
What is the AC‑3 current and power rating?
It is rated 420 A AC‑3 at 400 V, equivalent to 225 kW.
What coil voltage does this contactor use?
It has an AC/DC coil rated for 110…125 V.
Which standards does the B400 comply with?
It meets IEC/EN 60947‑1 and 60947‑4‑1, UL 60947‑1 and 60947‑4‑1, and CSA equivalents.
What are the operating environmental limits?
Operating temperature is −50 to 70 °C, with maximum altitude 3000 m and Pollution Degree 3.
How is it mounted and what is the terminal torque?
It mounts with screws; terminal tightening torque is 35 Nm.
Safety note: Install and service only when isolated from power. Use appropriate PPE, tighten terminals to 35 Nm, and operate within specified temperature, altitude and pollution degree limits per the stated standards.
| Manufacturer Part Number | 11B40000110 |
|---|---|
| HS Code | 85365080 |
| Manufacturer | Lovato |
| Alternative Product SKU | B40000110 |
| KW Rating | 225kW |
| Number of Poles | 3 Pole |
| AC3 Amperage | 420A |
| AC1 Amperage | 550A |
| Barcode | 8013975026601 |
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