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11B31000110 Lovato b series 3 pole maxi contactor 320A 170kW 450A 110VAC/DC
MPN: 11B31000110
Alt. SKU: B31000110
Special Price
£1,490.53
£1,242.11
Regular Price
£2,484.23
Why Choose the 11B31000110?
Designed for demanding motor control, the Lovato B310 three‑pole contactor delivers AC3 performance at 320 A and 170 kW (400 V). Its universal AC/DC coil operates from 110...125VAC/DC, simplifying stock and panel design. With screw mounting, it integrates easily into control panels and motor control centres, providing reliable switching for heavy‑duty industrial applications.
Engineered for durability, it offers Ui 1000 V and 8 kV impulse withstand, plus Ith 450 A (AC1). Rated for -50 to 70 °C operation, up to 3000 m altitude and pollution degree 3, it performs in harsh environments. A 10,000,000‑cycle mechanical life and compliance with IEC/EN and UL/CSA standards ensure long service and assured conformity.
Key Benefits
- High AC3 performance: 320 A, 170 kW at 400 V for motor loads
- Wide 110...125 VAC/DC coil range simplifies control circuit design
- Robust insulation: Ui 1000 V and 8 kV impulse withstand
- Extended operating temperatures from -50°C to 70°C for harsh environments
- Long mechanical life rated at 10,000,000 operating cycles
- Certified to IEC/EN, UL and CSA standards for global compliance
- Screw mounting and terminals with 35 Nm tightening torque
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: 9650 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 11B31000110)
- Integrated 110...125VAC/DC coil
- Manufacturer documentation (digital or in-box, where provided)
Applications
- Motor control centres and starters up to 170 kW at 400 V
- Heavy-duty switching of AC3 and AC1 loads in industry
- Pumps, compressors, conveyors and large fans
- Control panels requiring 110...125 VAC/DC coil versatility
Frequently Asked Questions
What coil voltage range does the Lovato B310 contactor support?
It has an AC/DC coil rated 110...125 VAC/DC.
What is its AC3 rating at 400 V?
It is rated 320 A AC3 with 170 kW motor power at 400 V.
Does it comply with international standards?
Yes. It conforms to IEC/EN 60947-1 and 60947-4-1, UL 60947-1/-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 terminal torque is specified?
It uses screw mounting, with terminal tightening torque specified at 35 Nm.
Safety note: Installation must be by qualified personnel. Isolate power before work, follow IEC/EN 60947 guidance, tighten terminals to the specified torque, and operate within the stated ratings and temperatures.
| Manufacturer Part Number | 11B31000110 |
|---|---|
| Manufacturer | Lovato |
| Alternative Product SKU | B31000110 |
| KW Rating | 170kW |
| Number of Poles | 3 Pole |
| AC3 Amperage | 320A |
| AC1 Amperage | 450A |
| Barcode | 8013975026557 |
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