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> Ev Charging Socket

80A 125A 200A 250A 350A GBT DC Charging Socket For Electric Car

Rated Current: 80A 125A 150A 200A 250A 300A 350A
Rated Voltage: 1000V DC
Certificate: CE RHOS
IP Level: IP55
Product description: Senku SK-GBS-DC series GBT DC charging socket for electric car is mounted on electric vehicles and enable DC charging when paired with a compatible DC charging gun. These products comply to GB/T 20234
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80A 125A 200A 250A 300A 350A GBT DC Charging Socket For Electric Car - Supplier, manufacturer, factory

Main Parameter
Key Features	Complies with GB/T 20234 standard
	Made of reliable, flame-retardant, pressure resistant, and wear-resistant materials
	Provides excellent protection at IP54 level
	Operating temperature: -30°C to +50°C
Mechanical Specifications	≥ 10000 insertion and extraction cycles
Mechanical Specifications	Operatingn force between 45N and 80N
Electrical Specifications	Rated current: 80A 125A 150A 200A 250A 300A 350A
	Operating voltage:750V or 1000V DC
	Insulation resistance: > 1000MΩ (tested at DC500V)
	Terminal temperature rise: < 50K
	Withstand voltage: 2000V
	Contact resistance: Max 0.5mΩ
Material Composition	Casing: Thermoplastic, UL94 V-0 flame-retardant
Material Composition	Pins: Copper alloy with silver plating
Application	Suitable for various Battery Electric Vehicles (BEV) and Hybrid Electric Vehicles (HPEV) and Electric boats design according to the GBT 20234 Standard

The SK-GBS-DC series GB/T DC electric car charging sockets are designed for a rated voltage of 750V and available with current ratings of 80A, 125A, 150A, 200A 250A 300A, and 350A. They are compatible with cables sized at 25mm², 35mm², 50mm², 70mm² and 9570mm².

Model	Cable Specifications
SK-GBS-DC-080A	80A 220+125+24+20.75mm²(P2)+5*0.75mm²
SK-GBS-DC-125A	125A 235+125+24+20.75mm²(P2)+5*0.75mm²
SK-GBS-DC-150A	150A 250+125+24+20.75mm²(P2)+5*0.75mm²
SK-GBS-DC-200A	200A 270+125+24+20.75mm²(P2)+5*0.75mm²
SK-GBS-DC-250A	250A 295+125+24+20.75mm²(P2)+5*0.75mm²
Remark:The socket cable length a end of treatment are according to the customer requirement.

Senku SK-GBS-DC series DC charging socket for electric car is mounted on electric vehicles and enable DC charging when paired with a compatible DC charging gun. These products comply to GB/T 20234.3 and RoHS requirements.

What is DC Charging of GB/T 20234?

DC Charging under the GB/T 20234 standard (specifically GB/T 20234.3) refers to the guidelines set for direct current (DC) charging of electric vehicles (EVs) in China. It defines the technical specifications for the charging interface, connector, communication protocols, and power levels for fast DC charging.

Here’s a detailed breakdown of DC charging under GB/T 20234:

1. Power Delivery

DC charging provides direct current (DC) directly to the vehicle's battery.

Unlike AC charging, where power is converted from AC to DC by the vehicle’s onboard charger, in DC charging, the conversion happens in the charging station itself, allowing DC to be supplied straight to the battery.

This allows for much higher power levels and, therefore, faster charging.

2. Power Ratings

DC charging under GB/T 20234.3 supports power levels ranging from 50 kW to 350 kW or more, depending on the infrastructure and the EV’s battery capacity.

Higher power levels enable fast charging, reducing charging times significantly. For example, some EVs can charge from 20% to 80% in 20-30 minutes using high-power DC chargers.

3. Connector Design

The GB/T DC charging connector is designed specifically to handle higher power levels. It has a larger, bulkier design compared to AC connectors.

The connector has seven or more pins, including:

Two large pins for high-voltage positive and negative DC power lines.

Smaller pins for communication, grounding, and other control signals.

The connectors are built to handle higher voltages (up to 1000V) and currents (up to 500A), enabling rapid energy transfer.

4. Communication Protocol

GB/T 20234.3 defines a communication protocol between the charging station and the vehicle to ensure safe and efficient power transfer.

The vehicle and charging station exchange information about the battery’s state of charge, required current, voltage levels, and safety checks.

Pulse-width modulation (PWM) and other signaling techniques are used to regulate the charging process.

5. Charging Process

During DC charging, power is directly transferred to the battery without the need for conversion inside the vehicle.

The charging station's power electronics handle the conversion of AC to DC, which allows for higher power output compared to AC charging.

The vehicle’s battery management system (BMS) controls how the DC power is accepted to avoid overcharging, overheating, or other issues.

6. Safety Features

The GB/T DC charging standard includes a range of safety measures, such as:

Insulation checks and grounding to ensure the vehicle and charger are safely connected.

Temperature monitoring to prevent overheating during high-power charging.

Automatic shutoff in case of faults, like excessive current or voltage levels.

The connectors and cables are designed to handle high voltage and current safely, often with extra insulation and cooling mechanisms for the charger itself.

7. Charging Speed

The primary advantage of DC charging is speed. With power levels up to 350 kW, DC chargers can quickly replenish an EV’s battery in a fraction of the time required for AC charging.

DC charging is typically used for fast-charging stations, where drivers need to charge their vehicles quickly during long trips or at commercial hubs.

Difference between GBT AC charging and GBT DC charging

Aspect	GB/T AC Charging	GB/T DC Charging
Power Type	Alternating Current (AC)	Direct Current (DC)
Power Output	Up to 44 kW	50 kW to 350 kW
Charging Speed	Slow (hours for a full charge)	Fast (20-30 min for 20%-80%)
Power Conversion	Inside the vehicle (onboard charger)	Inside the charging station
Connector	GB/T 20234.2 (AC connector)	GB/T 20234.3 (DC connector)
Use Case	Home, workplace, long-term public parking	Highway rest stops, public fast chargers

Tags: charging socket for electric car, manufacturers, factories

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80A 125A 200A 250A 350A GBT DC Charging Socket For Electric Car

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