GUWIEYG CCS2 to CCS1 Adapter for J1772 EVs — 1000V 500A, PA66 Housing & Thermal Protection

GUWIEYG CCS2 to CCS1 Adapter lets CCS1 (J1772 Combo) EVs charge at CCS2 high-power stations up to 1000V and 500A when compatible, converting the plug interface safely and reliably.

This adapter provides a practical bridge between CCS2 fast chargers (commonly found at public rapid-charging hubs) and vehicles built to the CCS1/J1772 standard. Engineered with high-temperature PA66 housing and silver-plated copper-alloy pins, the unit focuses on durability and stable electrical contact. Tested across a wide operating temperature range and fitted with thermal protection, it’s intended to maximize charger availability while preserving safety under heavy loads.

How does this adapter enable charging between different standards?

The GUWIEYG CCS2 to CCS1 adapter physically adapts the CCS2 station connector to the CCS1 inlet on your vehicle while passing high-voltage and communication signals required for fast charging. It does not change the vehicle’s onboard charger — instead, it allows compatible CCS2 chargers to deliver power to CCS1-equipped cars.

• Converts CCS2 station plug to CCS1/J1772 vehicle inlet
• Supports up to 1000V and 500A depending on charger and vehicle capability
• Maintains control pilot and charge communications for safe operation

Is it safe to use at high power and in extreme temperatures?

Safety features are built into the adapter’s design: a flame-retardant PA66 shell, silver-plated copper-alloy pins for reliable contact, and a thermal circuit breaker that interrupts charging if temperatures exceed safe thresholds. The unit is rated to operate in wide ambient conditions and resets once cooled.

• UL94 V-0 flame-retardant housing material
• Operating range: -40 °C to 85 °C (-49 °F to 185 °F)
• Thermal circuit breaker halts charging above safe temperatures

What charging performance can I expect with this adapter?

When paired with a CCS2 charger and a vehicle that accepts equivalent input, the adapter supports very high charging power — up to the adapter’s rated 1000V/500A capability. Actual delivered power depends on the station’s output and the vehicle’s maximum charge acceptance.

• Adapter rated to support up to 500 kW (500A at higher voltages)
• Real-world charging limited by charger and vehicle specifications
• Durable contacts reduce heat and voltage loss at high currents

How do I install and maintain the GUWIEYG CCS2 to CCS1 adapter?

Installation is plug-and-play: attach the adapter to the CCS2 charger plug, then insert the adapted connector into the vehicle’s CCS1 inlet. After each use, inspect the housing and pins for debris or damage and store the adapter in a dry place away from direct heat when not in use.

• No tools required — connect between charger and vehicle inlet
• Regularly check pins and housing for wear or foreign material
• Follow charger station instructions and vehicle manufacturer guidance

Who is this for? The GUWIEYG CCS2 to CCS1 Adapter is intended for drivers of CCS1/J1772 vehicles who need access to CCS2 high-power charging infrastructure, fleet operators bridging charger ecosystems, and charging station users seeking greater interoperability. It’s best suited to those who understand their vehicle’s maximum charging capabilities and want a robust, tested hardware solution with one-year support from GUWIEYG.