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The JCQ400G1EA01 High Voltage DC Contactor is a 400A, 750VDC relay engineered for use in electric buses (EV buses). With a 9–36VDC coil, it ensures safe and reliable switching of high-voltage circuits in new energy vehicles.
Part Number (P/N): JCQ400G1EA01
Coil Voltage: 9–36 VDC
Contact Rating: 750 VDC, 400 Amps
Application: High-voltage battery system, inverter, motor drive, DC/DC converter, onboard charger
Function: Provides safe disconnection and short-circuit protection in EV bus high-voltage circuits
The JCQ400G1EA01 high-voltage contactor is widely applied in Yutong eBus models, including:
E Series: E8, E9, E9L, E10, E11, E11PRO, E12 (popular model with PRO & DD versions), E18PRO
U Series: U10, U12 (including U12DD double-deck), U13, U18
H Series: H10
This makes it an essential spare part for operators and service providers of Yutong electric buses worldwide.
High Reliability: Ceramic-sealed structure with long service life in demanding EV environments
Safety First: Fast and secure disconnection of high-voltage circuits to protect battery packs, inverters, and auxiliary systems
Versatility: Suitable for charging systems, battery protection, and motor drive applications in Yutong buses
