Sevcon HVLP-20 Auxiliary Inverter - 700V 22kW
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High-Power Precision for Liquid-Cooled Auxiliary Systems
The Sevcon HVLP-20 is the high-capacity variant of the HVLP series, designed for demanding auxiliary loads in 800V electric vehicle architectures. Delivering up to 22kW of continuous power, this liquid-cooled inverter is the industry standard for driving heavy-duty air conditioning compressors, large hydraulic pumps, and thermal management systems in electric buses, trucks, and specialized industrial machinery.
Technical Specifications (Verified Data):
| Feature | Details |
| Part Number | 634L20101 / 634L20202 Series |
| Operating Voltage Range | 150V DC to 800V DC (Nominal: 700V DC) |
| Continuous Output Power | Up to 22kW @ 700V DC (Liquid Cooled) |
| Peak Output Current | 53A (Arms) for 60 seconds |
| Continuous Output Current | 33A (Arms) |
| Logic Supply Voltage | 12V or 24V nominal (8V - 36V range) |
| Environmental Protection | IP66 Rated |
| Weight | 5.3 kg |
🛡️ Safety & Integration Note
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High Voltage Safety: Operates at lethal voltages (up to 800V DC). Integrated HVIL (High Voltage Interlock Loop) circuitry is standard to ensure system-wide safety during maintenance and operation.
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Control Intelligence: Features advanced Flux Vector Control for precise management of both AC Induction and Permanent Magnet (PMAC) motors.
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Programming: Full parameter access and diagnostics require an IXXAT USB-to-CAN interface and DVT software.
💧 Critical Cooling & Performance Note
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Liquid Cooling Requirement: To achieve its 22kW rating, the HVLP-20 requires an active liquid cooling circuit (typically a 50/50 water-glycol mix). Ensure a minimum flow rate of 6 L/min for optimal thermal performance and to prevent power derating.
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Superior Power Density: Compared to the HVLP-10, the HVLP-20 doubles the power output within a similarly rugged footprint, making it ideal for high-duty cycle industrial applications.
🌟 Sourcing from Ekol Drive Systems
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Authorized Partner: Genuine Sevcon liquid-cooled technology supplied via Ekol Engineering’s official distribution network.
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Global Export Authority: Approved by UK Strategic Export Controls for international trade, ensuring all EUSU/SU documentation is handled with 100% legal compliance.
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EXW (Ex Works) Terms: All sales are conducted on EXW terms from our UK facility.
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Seamless Customs Support: Commercial invoices include official export license declarations for fast and reliable global customs clearance.