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11B310400380 - 4P CONTACTOR B310.4.00 380/415
MPN: 11B310400380
Alt. SKU: B310400380
Why Choose the 11B310400380?
The Lovato B310 four-pole contactor delivers dependable high-current switching for demanding installations. With an IEC AC1 operating current of 450 A and a wide-range 380–415 V AC/DC coil, it suits diverse control schemes while simplifying spares. At 400 V AC3 it handles 320 A/170 kW motor loads, and screw mounting aids straightforward panel integration. Its robust construction suits heavy-duty applications across industrial panels and power distribution equipment.
Engineered for reliability, the contactor offers Ui 1000 V insulation and 8 kV impulse withstand, with a mechanical life of 10,000,000 cycles. It operates from −50 to +70 °C and up to 3000 m altitude, Pollution Degree 3. Rated 250 HP at 480 V (UL/CSA), it complies with IEC/EN 60947 and corresponding UL/CSA standards, supporting safe, consistent performance in harsh industrial environments.
Key Benefits
- High AC1 rating of 450 A for heavy resistive loads.
- AC3 320 A, 170 kW at 400 V for motor switching.
- Wide 380–415 V AC/DC coil simplifies stocking and control designs.
- Four-pole configuration enables flexible power and control circuits.
- Rated insulation voltage Ui 1000 V; impulse withstand Uimp 8 kV.
- Robust mechanical life of 10,000,000 cycles for long service.
- Broad −50 to +70 °C operating range; up to 3000 m altitude.
Technical Specification
- Product type designation: B310
- Number of poles: 4
- 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: 1112 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 four-pole contactor, factory-fitted 380–415 V AC/DC coil.
- Manufacturer documentation with specifications and ratings.
- Product identification label.
- Protective packaging for shipping.
Applications
- High-current resistive load switching up to 450 A AC1.
- Three-phase motor control up to AC3 320 A / 170 kW at 400 V.
- Industrial control panels and distribution boards requiring four-pole switching.
- HVAC plant rooms, pumping systems and conveyors.
- Automation systems built to IEC/EN 60947 requirements.
Frequently Asked Questions
What is the coil voltage and type for this contactor?
It has an AC/DC coil rated 380–415 V, suitable for either AC or DC supplies.
What current and power ratings does it support?
IEC AC1 Ith is 450 A, and at 400 V AC3 it is 320 A/170 kW.
Which standards does it comply with?
It conforms to IEC/EN 60947-1 and 60947-4-1, plus UL 60947-1/-4-1 and CSA equivalents.
What are the operating and environmental limits?
Operating temperature is −50 to +70 °C, storage −60 to +80 °C, max altitude 3000 m, Pollution Degree 3.
What is the UL/CSA horsepower rating at 480 V?
It is rated 250 HP at 480 V under UL/CSA.
Safety note: Installation and maintenance must be performed by qualified personnel. Follow the manufacturer data sheet and applicable IEC/EN 60947 practices, observing specified terminal tightening torque and environmental limits.
| Manufacturer Part Number | 11B310400380 |
|---|---|
| Manufacturer | Lovato |
| HS Code | 85365080 |
| Barcode | 8013975074473 |
| Alternative Product SKU | B310400380 |
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