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DC Contactor EVK300

This 300A high-voltage DC contactor is a heavy-duty product that supports high-voltage systems from DC 12V to 1500V, and the coil voltage covers 12V/24V/48V. It is suitable for large-scale energy storage systems, high-speed charging stations, photovoltaic storage and charging equipment, and other scenarios with extremely high requirements for power-off reliability. The product has fast disconnection, high insulation strength and overload protection capabilities, and is the core control component in the high-voltage DC system.
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300A High Voltage DC Contactor Product Introduction

The 300A high voltage DC contactor is a high-performance product developed for new energy systems, high-power energy storage platforms, and DC fast charging equipment. It is suitable for the DC 12V1500V voltage range, equipped with 12V/24V/48V coil drive, and the coil power is 66.5W. The contactor uses high-current silver alloy contacts and high-insulation strength packaging materials to maintain stable operation in high-voltage and high-frequency switching environments.

The product adopts an integrated heat sink and enhanced structural skeleton design to effectively suppress contact arcs and heat losses and extend service life. The compact shape is easy to install in limited space, especially suitable for highly integrated system platforms. Auxiliary contacts can be optionally equipped to achieve linkage logic control or status detection.

Product Features

⚡ High current carrying capacity: 300A high current continuously switched on and off to meet the needs of energy storage and heavy-duty equipment

Optimized heat dissipation design: integrated heat-conducting components to improve stability under high-power operation

Low-power control coil: coil power is only 6~6.5W, suitable for battery-powered systems

High-reliability contact structure: wear-resistant, anti-welding, suitable for frequent switching

Support auxiliary contact expansion: convenient for status feedback and remote monitoring

Compact structure, easy to integrate: suitable for internal installation of standard modular equipment

Typical application scenarios

✅ The joint way of the coil is very convenient

✅ Dimension: 80.5×63.9×72.2mm

✅ Weight: 430g

✅ IP Grade: IP67

✅ Mechanical life: 2x105 cycles

✅ Approval: UL, CE, TÜV

Application scenarios

Typical application areas:

DC main circuit control of industrial and commercial energy storage system (BESS)

DC output circuit disconnection protection of charging station

High-voltage system switching of electric trucks and electric mining equipment

Photovoltaic DC combiner box and inverter input control

Distributed DC power supply platform (such as IDC data center, computer room)

Railway vehicle DC auxiliary system circuit breaker control艾详情_01

Applications include electric vehicles, fast charging piles, battery switching and backup, high voltage DC voltage switching control, circuit protection and safety control.

Contact ArrangementSPST-NO
Auxiliary ContactOptional
Voltage Rating12-200Vdc,12-750Vdc,12-1000Vdc,12-1500Vdc
Current Rating300A
Break Current, Max(only 1 time)2000A 320Vdc
Contact Resistance≤1m Ω (at 300A)
Insulation ResistanceInital: 100M Ω 1000Vdc   After test: 50M Ω 1000Vdc
Coil Voltage12Vdc   24Vdc   48Vdc
Coil Power≈6.0W  ≈6.0W  ≈6.5W
Mechanical Life2x105 cycles
Main Contact MountingM8 female thread
Dimensions80.5×63.9×72.2mm
Weight≈430g
Operating & Storage Temperature-40~+85℃
Operating & Storage Humidity5%~95%RH
Altitude≤4000m
CertificationCE,UL,CCC


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