| Parameter | Value |
|---|---|
| Model | EVQ300 |
| Rated Load Voltage (Ue) | 12–1500Vdc |
| Rated Load Current (Ie) | 300A |
| Rated Coil Voltage (Us) | 12Vdc / 24Vdc |
| Contact Resistance (initial) | Typical 0.2 mΩ |
| Electrical Life | DC450V: 10,000 ops · DC750V: 1,000 ops |
| Mechanical Life | 200,000 cycles |
| Contact Arrangement | SPST-NO-DM |
| Sealing / Material | Ceramic brazed seal · Inactive gas |
| Maximum Breaking Current | DC320V 600A / once |
| Short-circuit Withstand | 300A 600s / 400A 200s |
| Insulation Resistance | 100MΩ DC1000V |
| Withstand Voltage | AC 3500 Vrms / 10mA / 60s |
| Coil Control Voltage | DC12V/DC24V/DC48V · Holding Us85%Min · Drop-out Us10%Min |
| Auxiliary Contact | Without |
| Working Temperature | -40°C ~ +85°C |
| Weight | Approx. 370g |
| Certification | UL / RoHS |
| Warranty | 1 year |
| Advantage | Benefit for Your Application |
|---|---|
| ✅ 300A / 1500VDC Rating | High-voltage switching for EV LiFePO4 battery packs and energy storage systems. |
| ✅ Ceramic Brazed Seal | Ceramic-metal brazed construction ensures reliable hermetic sealing and long life. |
| ✅ Ultra-Low Contact Resistance | Typical 0.2 mΩ minimizes heat loss and improves system efficiency. |
| ✅ Long Mechanical Life | 200,000 mechanical cycles support long service intervals. |
| ✅ UL / RoHS Certified | Meets international standards for EV and industrial export projects. |
UL / RoHS certified — certificates and test reports available on request.
Electric vehicle · Lithium iron phosphate battery isolation
BESS · C&I storage · Backup power
DC fast chargers · Charging piles
Renewable energy storage · Power conversion
| Item | Detail |
|---|---|
| Brand / Origin | ALQ · Jiangsu, China (factory direct) |
| MOQ | Flexible — contact sales for sample & volume pricing |
| Lead Time | Typically 7–15 days (confirm with sales) |
| Payment | T/T, Trade Assurance, etc. (confirm with sales) |
| Customization | OEM/ODM — custom coil voltage, auxiliary contacts, terminals, packaging available |
| Warranty | 1 year |
Q1. What is the rated voltage and current?
A: Rated load voltage 12–1500Vdc and rated load current 300A — suitable for high-voltage EV battery and energy storage circuits.
Q2. Which coil voltages are available?
A: Standard coil options are 12VDC and 24VDC; other coil voltages can be discussed with our engineers.
Q3. Is it a sealed / arc-proof contactor?
A: Yes. The ceramic brazed seal with inactive gas provides reliable arc quenching for high-voltage DC switching.
Q4. What are the MOQ and lead time?
A: MOQ is flexible for samples and trial orders. Standard lead time is typically 7–15 days; our sales team confirms the schedule.
Q5. Do you support OEM/ODM customization?
A: Yes — custom coil voltage, terminals, labels and packaging are available for volume orders.
Q6. Which certifications does this contactor carry?
A: UL / RoHS. Contact our sales team for certificates and the latest test reports.
