Project Description

DC relay-ZJQ300


300A High Voltage DC relay contactor, DC 12-450V, 12V/24V Contact Coil

Lowest price DC contactor, normally open (SPST-NO), 300 amps rated load current, available with 12V or 24V coils. It’s widely used in low speed EV, like Electric Forklift, Golf cart, etc.

  • Epoxy sealed.
  • Magnetic arc blowout.
  • Compact design, low noise.
  • Bi-directional, optional with polarized or non-polarized contact.
  • Optional Auxiliary contact.
  • CE, CCC and RoHS compliant.

ZJQ Series DC contactors are designed as the cost effective low power contactors, rated voltage from 12VDC to 450VDC, range from 30A DC contactor to 350A contactors.These hermetically sealed contactors can be mounted in any position, can be used in nearly any harsh environment at temperatures from –40°C to 85°C. They are the preferred contactor (sometimes called a relay ) for low rapid vehicles like Electric Forklift trucks,Golf carts,power management systems for battery charging, fuel cells, battery backup where long life and high reliability are needed.All ZJQ Series contactors meet RoHS and CE Conformance requirements.

Contact arrangementSPST-NO
Main contact ParameterRated load voltage (Ue)12-450Vdc
Rated load current1-300A
Contact PolarityNon
Max continuous themal current400A 1200sec
600A 180sec
Max.switching current 1 time only2000A 200Vdc
General DataInitial contact resistance1mΩ Max.(at 1A)
operate time(at 20℃)40ms Max.
Bounce time(at 20℃)7ms Max.
Release time(at 20℃)12ms Max.
Electricity lifeDC250V,1x104times
Mechanical Life2×105
InsulationInsulation resistanceInitial:100MΩ Min.
Life End: 50MΩ Min.
Dielectric strengthcoil to contactAC 2500 Vrms/1mA/1min.(At sea level)
contact to contactAC 2500 Vrms/1mA/1min.(At sea level)
Mechanical functionShock resistance20Gpeak value,11ms 1/2sinusoid(coil power setup)
Vibration resistance20Gpeak value,80~2,000Hz,sinusoid
Coil parameterNominal voltage12Vdc24Vdc
Coil Power (W)9.17W7.02W
Coil polarityNon
Auxiliary contact option
Mounting & ConnectionsM8 Male thread/M6 Female thread
Environmental parameterAmbient Temperature-40~+85℃
Relative Humidity5~95% RH.
Dimension80.5x58.2x95 mm
Weight ( g )575 ± 10g

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