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11B400400380 - 4P CONTACTOR B400.4.00 380/415
MPN: 11B400400380
Alt. SKU: B400400380
Why Choose the 11B400400380?
Designed for heavy-duty switching, the Lovato B400 four-pole contactor (SKU 11B400400380) combines a 380-415 V AC/DC coil with formidable current capability. It delivers 550 A IEC AC1 and 420 A / 225 kW AC3 at 400 V, with a UL/CSA horsepower rating of 350 HP at 480 V. With screw mounting for secure installation, this contactor provides reliable control for motors and high-current resistive loads.
Built to endure demanding environments, it carries a 1000 V rated insulation (Ui) and 8 kV impulse withstand (Uimp), with an exceptional mechanical life of 10,000,000 cycles. Operating from -50 to 70 °C and stored from -60 to 80 °C, it works up to 3000 m altitude, pollution degree 3. Conformity with IEC/EN 60947-1/-4-1, UL and CSA standards underpins assured safety and performance.
Key Benefits
- High IEC AC1 current rating of 550 A for heavy-duty loads.
- Strong AC3 performance: 420 A / 225 kW at 400 V.
- Universal 380-415 V AC/DC coil simplifies panel design and spares.
- Rated Ui 1000 V and 8 kV impulse withstand for resilience.
- Exceptional durability with 10,000,000 mechanical operations.
- Wide operating temperature -50 to 70 °C for harsh environments.
- Complies with IEC/EN, UL and CSA standards for global acceptance.
- Screw mounting with 35 Nm terminals for secure, reliable connections.
Technical Specification
- Product type designation: B400
- Number of poles: 4
- 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: 1114 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 four-pole contactor (11B400400380)
- Manufacturer datasheet and documentation
Applications
- Motor switching and control up to 225 kW at 400 V (AC3)
- High-current resistive load switching in AC1 duty up to 550 A
- Heavy-duty pumps, fans, compressors, and HVAC control panels
- Industrial power switching in process and manufacturing equipment
Frequently Asked Questions
What coil voltage range and type does this contactor have?
It uses an AC/DC coil rated 380 to 415 V.
What are the IEC AC1 and AC3 ratings at 400 V?
IEC AC1 Ith is 550 A; AC3 at 400 V is 420 A / 225 kW.
What is the UL/CSA horsepower rating at 480 V?
It is rated 350 HP at 480 V under UL/CSA.
What environmental limits does it support?
Operating -50 to 70 °C, storage -60 to 80 °C, altitude up to 3000 m, pollution degree 3.
How is it mounted and what is the terminal torque?
It mounts by screws; terminal tightening torque is 35 Nm.
Safety note: Installation and maintenance must be performed by qualified personnel with power isolated. Observe all stated ratings and standards, and tighten terminals to 35 Nm. Do not exceed specified operating limits.
| Manufacturer Part Number | 11B400400380 |
|---|---|
| Manufacturer | Lovato |
| HS Code | 85365080 |
| Barcode | 8013975026731 |
| Alternative Product SKU | B400400380 |
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