Built for applications requiring straightforward, reliable heating, the EW1 uses three U-shaped stainless steel resistive elements housed in a robust insulated body. Installed directly into the coolant circuit, it delivers heat instantly without the warm-up delay of other systems. Available in 3.6kW and 5kW models, it operates from 300–800V DC with outlet temperature-based on/off control.

With an O-ring sealed element, IP65-protected electrical cap, and wide ambient tolerance from -30 °C to +50 °C, the EW1 is suited to harsh, high-vibration environments. It requires minimal maintenance and is quick to install, making it ideal for new builds or retrofits.

Our auxiliary heaters are designed to provide dependable cabin warmth, efficient operation, and straightforward integration into vehicle HVAC systems.

• 3.6kW or 5kW @ 600V DC nominal: Delivers sufficient heating power for cabins, batteries, or large coolant loops in demanding applications.
• Stainless steel resistive tubular element design: Provides robust, corrosion-resistant heating performance with long service life.
• 300–800V DC operating range: Wide voltage tolerance ensures compatibility with a variety of high-voltage platforms.
• Instant heat delivery: Rapid output without warm-up delay, ideal for cold-start conditions.
• Built-in thermal protection: Safeguards the heater and surrounding systems from overheating.
• Compact 3kg design: Lightweight and easy to package where space is limited.
• O-ring sealed element and IP65-rated electrical cap: Protects against dust and water ingress for reliable operation in harsh environments.
• Flexible mounting options: Can be installed on chassis or roof to suit vehicle design constraints.
• Low maintenance: Minimises downtime and lifetime operating costs.
• Proven multi-sector use: Trusted in BEV, FCEV, hybrid, off-highway, and stationary power applications worldwide.

Each technical component helps deliver consistent heat output, supporting reliable performance in varied operating conditions.

• Nominal Voltage: 600V DC
• Voltage Range: 300–800V DC
• Nominal Power: 3,600 W ±5/-10% or 5,000 W ±5/-10%
• Heating Element: 3 × U-shaped stainless steel resistive tubular
• Coolant Working Temp: -30°C to +50°C
• Max Coolant Temp: +90°C ±3 °C
• Ambient Temp Range: -30°C to +50°C
• Installation Ambient Temp: -40°C to +85°C
• Min Coolant Flow: 15 L/min
• Coolant Type: 50:50 Ethylene-Glycol
• Ingress Protection: IP65
• Working Pressure: Max 2 bar
• Dimensions: 494 × 152 × 205 mm
• Weight (Dry): 3 kg