| Parameter | Value |
|---|---|
| Model | HFE88P-300 |
| Brand | HONGFA |
| Contact Arrangement | Main contact 1 Form A (SPST-NO) + auxiliary contact 1 Form B (weld detection, IEC 61810-3) |
| Rated Load Current | 300A continuous (at 85°C) |
| Load Voltage | 1500V DC |
| Max Breaking Current | 1500A |
| Max Switching Power | 500kW |
| Coil Voltage | 12V / 24V DC |
| Coil Power | 50W (making) / 5W (holding) |
| Contact Resistance | ≤0.3mΩ |
| Dielectric Strength | 4000VAC, 1 min (coil to contacts / between open contacts) |
| Insulation Resistance | 1000MΩ (at 1000VDC) |
| Short Circuit Current Rating | 10kA short circuit test |
| Mechanical Life | 1 × 10&sup5; operations |
| Sealing & Filling | Ceramic brazing sealed, hydrogen filled, IP67 contact chamber |
| Outline Dimensions (W / H / D) | 104.0 × 70.0 × 107.9 mm |
| Weight | Approx. 1150 g |
| Ambient Temperature | -40°C to +85°C |
| Vibration / Humidity | 10Hz to 55Hz, 1.5mm double amplitude / 5% to 85% RH |
| Place of Origin | China |
Handles 1500V DC load voltage and 300A continuous current with 1500A breaking capacity, supporting high-power systems up to 500kW switching power.
Main contact 1 Form A plus auxiliary contact 1 Form B monitors main contact welding (per IEC 61810-3), enabling a safety circuit in EV and ESS battery systems.
Ceramic brazing seal with hydrogen filling prevents arc leakage, oxidation and explosion risk, keeping contact resistance low and stable with IP67 contact protection.
Standard 12V and 24V DC coils cover common EV auxiliary rails and BMS control voltages. 50W making power gives high switching force while 5W holding power reduces heat and energy use.
0.3mΩ contact resistance minimizes heat generation and voltage drop at 300A, improving system efficiency and simplifying thermal design in compact enclosures.
Manufactured by Xiamen Hongfa, a leading global relay and contactor supplier. Certificate images and factory test reports can be supplied on request for OEM qualification.
HONGFA HFE88P-300 series is designed and manufactured under international quality standards for high-voltage DC switching components. Available certifications and reports include:
CE — European conformity for DC power switching components.
RoHS — Restriction of hazardous substances for global environmental compliance.
ISO 9001 — HONGFA quality management system certification.
Factory Test Reports — Contact resistance, dielectric strength and endurance test data available on request.
Certificate images and test reports can be supplied on request for OEM/ODM qualification processes.
Electric Vehicle Battery SystemsMain contactor, pre-charge and discharge relay for passenger EVs, electric buses, electric trucks and hybrid vehicles with 1500V battery packs. | Energy Storage Systems (ESS)Pack-level and rack-level DC switching in commercial and industrial battery energy storage, solar-storage hybrids and microgrid power distribution. |
DC Charging InfrastructurePower control and protection inside high-power DC fast chargers, charging piles and power distribution units for fleet and public charging. | 1500V PV & Industrial DC ControlString-level and combiner-box switching in 1500V solar plants, motor drives, DC power distribution, test equipment and renewable energy systems. |
A: HFE88P-300 is rated for 300A continuous load current, 1500V DC load voltage and 1500A max breaking current, with up to 500kW switching power.
A: Standard coil voltages are 12V and 24V DC with 50W making / 5W holding power. Other coil voltages can be discussed with our engineers for volume orders.
A: "88P" denotes HONGFA's high-voltage DC contactor platform optimized for 1500V photovoltaic, energy storage and EV applications with high current switching.
A: Yes. The contactor provides main contact 1 Form A plus an auxiliary 1 Form B contact for main-contact weld detection, supporting a safety circuit per IEC 61810-3.
A: Yes. Its 1500V DC rating, ceramic sealed hydrogen-filled chamber and 500kW switching power make it a good fit for high-voltage battery energy storage, 1500V solar inverters and DC fast charging systems.
A: Please send us your target coil voltage, quantity and application. We will confirm stock availability, sample lead time and best pricing within 24 hours.
