AER6V-300Y-F 300A High Voltage Relay with extra Auxiliary Contact


High current and high voltage DC contactor relays for electric vehicle applications such as battery power supply, DC power control, circuit protection, and other switch controls. Can also be used in uninterruptible power supply and other electronic control systems. Are available with polarized and non-polarized contacts to best suit electrical systems’ polarity. Coil Economizer greatly reduces coil power and heating after the contactor is energized. Once the contactor is energized, it takes minimal coil power to keep the contacts closed due to Pulse Width Modulation (PWM) reducing the average power delivered by pulsing the electrical signal.

Rated Current: 300A

Max Load Voltage: 750VDC

Coil Voltage: 12VDC/24VDC

Auxiliary Contact: 1NO 2A/30VDC, 3A/125VAC

Main Contact: 1NO

Electrical Life (MAX): 1000 times



300A High Voltage Relay Features:
·Contact points sealed by ceramic enclosure, and anti-arc by inert gases.
·Permanent magnetic extinguishing arc, high voltage DC cut off
·Anti-magnetic disturbances and explosion-proof
·RoHS listed
·PWM control coil, minimize the coil power consumption
·Vacuum sealed coil
·Contact points and coil double isolated
·Tiny but heavy duty
·Customized design is accepted

Contact 1NO
Rated Voltage 12-750V
Rated Current 300A
Contact Resistance ≤1.5mΩ(6VDC 20A)
Contact Performance Template high current withstand (a)400A 10Min (b)300A 10s
Max switch current 2000A(320VDC)
Overload break 400A 450VDC 50 times
Opposite break 300A 200VDC 100 times
Coil Voltage 9-36VDC
Pull-in voltage ≤9VDC
Release voltage ≥3VDC
Rated power 45W(Initiated voltage) 4W(Holding voltage)
Electrical Performance Withstand voltage Coil 3000VAC
Insulated resistance Coil 1000MΩ(1000VDC)
Pull-in time Max: 25ms
Releasing time Max: 10ms
Jumping time <3ms
Life-span Mechanical lifetime >200000
Electrical lifetime 450VDC 1000
750VDC 300
Mechanical Performance Withstand impact Functional 20G
Strength 50G
Withstand vibration Functional Min20G (80~2000Hz)
Weight ≈460g

Wiring Diagram ↓                                                                             Assembling Dimension ↓