NF Group 0.5-3kW OEM High Voltage Coolant Heater PTC Heater

Introducing our High voltage coolant heaters— engineered for high-performance electric vehicles (EVs) to deliver precise thermal management, enhanced energy efficiency, and superior cabin comfort. As global EV adoption accelerates, reliable, low-power-consumption heating solutions capable of consistent operation across extreme ambient temperatures have become critical. Our EV coolant heaters are purpose-built for integration into modern EV architectures, providing intelligent temperature regulation for both battery packs and passenger cabins.

These heaters use advanced PTC (Positive Temperature Coefficient) ceramic heating elements and closed-loop liquid thermal management to warm up quickly—cutting warm-up time by up to 40% compared to conventional systems. By gently keeping battery cells within their ideal temperature range (20–35°C), they help your batteries charge and discharge more efficiently, make the most of regenerative braking, and age more gracefully—so you enjoy longer service life and lower total cost of ownership, trip after trip.

Safety and long-term reliability are at the heart of everything we design. Each unit is carefully validated through real-world–like testing—including IP67 protection against dust and water, vibration endurance tested to ISO 16750-3 standards, and thermal cycling over 10,000 cycles. We build them with lightweight, durable aerospace-grade aluminum housings and UL-certified insulation materials—because your peace of mind matters as much as performance.

And it’s not just about function: it’s about comfort, too. With intelligent pre-conditioning, cabin heating can be scheduled remotely via your vehicle’s telematics system—so when you step in, it’s already just right. Best of all, this happens while the vehicle is parked, drawing power from the grid instead of the traction battery—helping preserve precious driving range for when you need it most.

Whether deployed in urban commuter fleets or long-haul applications, our HV coolant heater  represent a mature, scalable, and certified solution aligned with industry standards. Partner with us to advance thermal efficiency, safety, and sustainability in next-generation electric mobility.