X Contactor
DC Contactor ALQ EVC7A-400E 400A 500V Factory Direct DC Coil Relay
Technical Specifications
| Parameter | Value |
|---|---|
| Model | EVC7A-400E |
| Brand | ALQ |
| Rated Current (Optional) | 400 A |
| Max. Switching Voltage | 500 V DC |
| Power Contact Arrangement | SPST-NO-DM (Single Pole Single Throw, Normally Open, Dual Make) |
| Auxiliary Contact Arrangement (Optional) | SPST-NO / SPST-NC / None |
| Coil Voltage Rating (Optional) | 12 V DC / 24 V DC |
| Coil Characteristics | Single coil |
| Dimensions (L x W x H) | 74.0 x 60.0 x 127.2 mm |
| Mounting Type | Panel mount with bracket |
| Operating Temperature | -40°C to +85°C |
| Origin | Jiangsu, China |
| Warranty | 1 year |
| Typical Applications | EV charging, energy storage systems (ESS), industrial vehicles, frequency conversion equipment, solar inverters |
Product Details
Why Choose ALQ EVC7A-400E?
Factory-Direct 400A DC Switching
Rated 400 A continuous current at 500 V DC, with reliable make-break performance for EV chargers, energy storage systems and industrial DC power distribution.
Single Coil 12/24Vdc Control
Simple single-coil drive with optional 12 V DC or 24 V DC coil voltage, reducing driver complexity and matching common battery/control system voltages.
Built-in Auxiliary Contact Option
Optional SPST-NO / SPST-NC auxiliary contact provides reliable status feedback for battery management systems and safety interlock circuits.
Compact Panel-Mount Design
Dimensions 74.0 x 60.0 x 127.2 mm with integrated mounting bracket, saving cabinet space in high-density ESS, charger and vehicle installations.
Harsh Environment Ready
Operates from -40°C to +85°C with sealed construction, vibration resistance and salt-fog tolerance for outdoor charging, marine and industrial use.
CCC, TUV SUD & CE Certified
Backed by China Compulsory Certificate, TUV SUD test report and CE (LVD) attestation, plus ISO9001 quality management system compliance.
Certifications
CCC, TUV SUD, and CE (LVD) certified. Quality management system conforms to GB/T19001-2016 / ISO9001:2015.
Product Applications
Industrial Vehicles Electric forklifts, electric pallet trucks, electric aerial work platforms, intelligent logistics systems, automated guided vehicles (AGV), cold chain logistics equipment, industrial robots, electric tools, and electric golf carts. | DC Charging Equipment Chargers, small DC charging piles, monoblock DC charging piles, split-type DC charging piles (group charging), ultra-fast DC charging piles, and integrated DC charging piles for heavy-duty trucks. |
Energy Storage System Large-scale energy storage (generation-side, grid-side), medium-scale energy storage (industrial & commercial), small-scale energy storage (residential), and photovoltaic solar energy systems. | Frequency Conversion Equipment High-voltage frequency converters, power conversion systems (PCS), industrial rectifier power supplies, motor drives, and UPS systems. |
Frequently Asked Questions
Q1: What is the rated voltage and current of the EVC7A-400E?
A: The EVC7A-400E is rated for 500 V DC maximum switching voltage and 400 A continuous current, suitable for medium-voltage EV charging, ESS and industrial DC distribution.
Q2: What coil voltages are available?
A: The contactor is available with 12 V DC or 24 V DC single coil. Specify the required coil voltage and auxiliary contact type when requesting a quote.
Q3: Can this contactor be used in energy storage and EV charging systems?
A: Yes. The EVC7A-400E is designed for battery energy storage systems, DC fast chargers, solar inverters, industrial vehicles and frequency conversion equipment.
Q4: What is the contact arrangement of this contactor?
A: The power contact uses an SPST-NO-DM (Single Pole Single Throw, Normally Open, Dual Make) configuration. An optional auxiliary contact is available in SPST-NO, SPST-NC, or none.
Q5: What protection level does the EVC7A-400E offer?
A: The EVC7A-400E features sealed construction with high ingress protection, vibration resistance and wide temperature range (-40°C to +85°C) for outdoor and industrial environments.
Q6: How do I request a quote and what is the lead time?
A: Submit your required specifications (current rating, coil voltage, auxiliary contact type, and quantity) through the inquiry form or contact us via WhatsApp. Our engineers will respond within 24 hours. Sample lead time is [to verify with factory].
- Application:
- Industrial Automation
- Main Circuit Rating Current:
- 400 A
- Phase:
- 1
- Model Number:
- EVC7A-400E
- Brand Name:
- ALQ
- Place of Origin:
- Jiangsu, China
- Electricity Type:
- DC
- Frequency:
- 50 Hz
- Mounting Type:
- Modular
- Rated load voltage Ue:
- 12-500Vdc
- Rated load current Ie:
- 400Amp
- Rated voltage of coil Us:
- 12Vdc or 24Vdc or 48Vdc
- Contact resistance initial:
- Typical value 1Milliohm
- Electrical life:
- DC450V, 10000 second DC750V, 1000 second
- Warranty:
- 1 year
