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contactor
DC Charging Pile Solution
ALQ Technology has developed a series of highly reliable DC contactors tailored to the
application conditions and industry pain points of DC charging equipment. These DC
contactors can fully meet the operational requirements of DC chargers, standalone DC 
charging piles, split-type DC charging piles (group charging), small DC charging piles, 
heavy-duty truck integrated DC charging piles, and ultra-fast charging piles.
contactor
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The left diagram is a typical control circuit diagram of an integrated DC charging pile. It is a simplified schematic that only illustrates part of the control logic of DC contactors, and is for reference only.
K1 and K2 are DC contactors for the DC output of 
Charging Gun No. 1.
K3 and K4 are DC contactors for the DC output of 
Charging Gun No. 2.
K5 and K6 are DC contactors for switching the output power between Charging Gun No. 1 and Charging Gun
No. 2.
Guidelines for the Selection 
of DC Contactors for DC 
Charging Pile
Characteristics of the Following DC Contactors
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Low temperature rise, long service life, high reliability, and convenient installation.
The coil has a small starting current and can control the activation of
multiple DC contactors simultaneously.
Image Part Number Rated Current (A) Max. Switching Voltage (V DC) Coil Voltage Rating Options (V DC) Power Contact Arrangement Auxiliary Contact Arrangement Options Coil Characteristic Load Termination Mounting Type Options Certificates
EVQ2H-100 1000V DC / 100A DC Contactor EVQ2H-100 100 1500 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, Leads Internal thread (M5) Bottom / Side
EVQ2H-135 1000V DC / 135A DC Contactor EVQ2H-135 135 1500 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, Leads Internal thread (M5) Bottom / Side
EVQ3G-150 1000V DC / 150A DC Contactor EVQ3G-150 150 1500 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, Leads Internal thread (M5) Bottom
EVQ5K-200 1000V dc / 200A DC Contactor EVQ5K-200 200 1000 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, TVS, Quick-connect External thread (M8) Bottom CCC, CE, TÜV
EVQ5K-250 1000V dc / 250A DC Contactor EVQ5K-250 250 1000 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, TVS, Quick-connect External thread (M8) Bottom CCC, CE, TÜV
EVQ5K-300 1000V dc / 300A DC Contactor EVQ5K-300 300 1000 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, TVS, Quick-connect External thread (M8) Bottom CCC, CE, TÜV
EVQ5K-350 1000V dc / 350A DC Contactor EVQ5K-350 350 1000 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, TVS, Quick-connect External thread (M8) Bottom CCC, CE, TÜV
EVQ7A-400 1000V dc / 400A DC Contactor EVQ7A-400 400 1000 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, TVS, Quick-connect External thread (M10) Bottom
EVQ7A-500 1000V dc / 500A DC Contactor EVQ7A-500 500 1000 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, TVS, Quick-connect External thread (M10) Bottom
EVQ7A-600 1000V dc / 600A DC Contactor EVQ7A-600 600 1000 12 / 24 / 48 SPST-NO-DM SPST-NO / SPST-NC / None Single coil, TVS, Quick-connect External thread (M10) Bottom
ALQ Technology was founded in
2013 and is committed to providing safer and more reliable DC switchgear for the global market. We have a strong R&D team that closely focuses on customers' needs and pain points, delivering
targeted DC contactors / DC relays to them. Endowed with rapid 
response capabilities, we 
continuously create greater value for our customers.

QUICK LINKS

CONTACT ALQ
WhatsAPP:   +86 139 1400 8299
Email:   sales@sz-alq.com
Phone:   +86 139 1400 8299
Fax:   +86-512-6618 8458
          +86-512-6618 8468
Address:   No. 599 Tai Shan Road, High-tech Zone, Suzhou City, Jiangsu Province, China, 
Factory Building No. 4, Floor 4 North
ALQ Technology was founded in
2013 and is committed to providing 
safer and more reliable DC 
switchgear for the global market. 
We have a strong R&D team that 
closely focuses on customers' 
needs and pain points, delivering
targeted DC contactors / DC relays
to them. Endowed with rapid 
response capabilities, we 
continuously create greater value 
for our customers.

QUICK LINKS

CONTACT ALQ
WhatsAPP:   +86 139 1400 8299
Email:    sales@sz-alq.com
Phone:   +86 139 1400 8299
Fax:   +86-512-6618 8458
          +86-512-6618 8468
Address:   No. 599 Tai Shan Road, 
High-tech Zone, Suzhou City, 
Jiangsu Province, China, Factory 
Building No. 4, Floor 4 North
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