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11B31000380 Lovato b series 3 pole maxi contactor 320A 170kW 450A 400VAC/DC
MPN: 11B31000380
Alt. SKU: B31000380
Why Choose the 11B31000380?
Engineer reliable high-power motor control with the Lovato B310 three-pole contactor, SKU 11B31000380. Delivering IEC AC-3 performance of 320 A at 400 V (170 kW) and an AC1 current of 450 A, it features an AC/DC coil rated 380-415 VAC/DC for flexible control schemes. Built for straightforward panel assembly with screw mounting, it provides robust operation across demanding industrial applications.
Designed for durability, the B310 offers Ui 1000 V and 8 kV impulse withstand, a mechanical life of 10,000,000 cycles, and dependable performance from -50 to 70 C. It meets IEC/EN 60947-1 and 60947-4-1, plus UL and CSA equivalents, and is rated for use up to 3000 m altitude with pollution degree 3.
Key Benefits
- AC-3 320 A at 400 V, suitable for 170 kW motors.
- Wide 380-415 VAC/DC coil simplifies control voltage selection.
- High insulation: Ui 1000 V; impulse withstand Uimp 8 kV.
- Operates from -50 to 70 C for harsh environments.
- Mechanical life rated at 10,000,000 cycles.
- Secure screw mounting for dependable panel installation.
- Compliant with IEC/EN, UL and CSA standards.
Technical Specification
- Product type designation: B310
- Number of poles: 3
- Rated insulation voltage Ui (IEC/EN): 1000 V
- Rated impulse withstand voltage Uimp: 8 kV
- Ith (IEC): 450 A
- Terminal tightening torque: 35 to 35 Nm
- Weight: 9530 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 B310 three-pole contactor (SKU 11B31000380), AC/DC coil 380-415 VAC/DC
- Manufacturer product datasheet and standards conformity information
Applications
- Industrial motor starters up to 170 kW at 400 V
- Heavy-duty switching for pumps, compressors and conveyors
- Large fans, blowers and HVAC plant control
- MCC panels and automated process equipment
- General-purpose power switching within specified ratings
Frequently Asked Questions
What coil voltage does this contactor use?
The integrated AC/DC coil is rated 380-415 VAC/DC.
What is the AC-3 rating at 400 V?
It is rated 320 A (170 kW) in IEC AC-3 at 400 V.
Which standards does SKU 11B31000380 comply with?
It conforms to IEC/EN 60947-1 and 60947-4-1, plus UL and CSA equivalents.
What operating temperatures is it designed for?
The operating temperature range is -50 to 70 C per the datasheet.
What is the UL/CSA horsepower rating?
It is rated 250 HP at 480 V per UL/CSA.
Safety note: Installation and maintenance must be carried out by qualified personnel. Isolate all power before work, observe the specified ratings and environmental limits, and follow applicable IEC/EN, UL and CSA standards.
| Manufacturer Part Number | 11B31000380 |
|---|---|
| HS Code | 85365080 |
| Manufacturer | Lovato |
| Alternative Product SKU | B31000380 |
| KW Rating | 170kW |
| Number of Poles | 3 Pole |
| AC3 Amperage | 320A |
| AC1 Amperage | 450A |
| Barcode | 8013975058725 |
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