For high-voltage connectors, consider voltage, interlock, and shielding (Source: Amphenol). Golden Rule: 1500V DC / 500A (Source: PowerLok); Core Feature: HVIL (High Voltage Interlock Loop) (Source: Amphenol); Key Requirement: IP68 sealing (Source: ZKH).
I.
Rated Voltage
1500V: Rated 1500V DC (Source: PowerLok); 1000V: 1000V DC is the mainstream standard (Source: SurLok); Dielectric Strength: Withstands 3000V AC (Source: Forman); Switching: Switching voltage of 1500V DC (Source: Douyin); Margin: Voltage margin of 1.2–1.5x (Source: Douyin)—Voltage: 1500V + Dielectric Strength + Margin (Three parameters).
II.
Rated Current
Range: Current of 50–500A (Source: SurLok); 85°C: 180–270A @ 85°C (Source: ZKH); Continuous: 500A continuous at 80°C (Source: PowerLok); Wire Gauge: 35–120mm² shielded cable (Source: PowerLok); Matching: Matches system rating (Source: Douyin)—Current: 50–500A + Wire Gauge + Continuous Rating (Three checks).
III. High-Voltage Interlock
HVIL: High-Voltage Interlock Loop function (Source: Amphenol); Safety: Low-voltage disconnect prior to connection (Source: MetabeeAI); Detection: Circuit detection for connection status (Source: Elecpeek); Secondary Lock: Anti-loosening secondary locking mechanism (Source: Elecpeek); Secondary Locking Collar: Includes secondary locking collar structure (Source: Amphenol)—Interlock: HVIL + Secondary Lock + Detection (Triple Safety).
IV.
Shielding Design
360°: 360° full shielding (Source: ZKH); EMI: Electromagnetic interference protection (Source: MetabeeAI); Shielded Cable: Shielded cable compatibility (Source: PowerLok); Metal Shell: Metal housing shielding (Source: Elecpeek); EMI Version: EMI-shielded version (Source: Amphenol)—Shielding: 360° + EMI + Metal Shell (Triple Design).
V.
Protection Rating
IP67: IP67 dust and water protection (Source: SurLok); IP68: IP68 rating after connection (Source: ZKH); IP6K9K: High-pressure wash-down protection (Source: PowerLok); Salt Spray: 500-hour salt spray resistance (Source: PowerLok); Temperature: -40 to 125°C (Source: SurLok)—Protection: IP67 + IP68 + Salt Spray (Triple Certification).
VI. Terminal Materials
Silver Plating: Silver-plated copper contacts (Source: JAST); Resistance: Contact resistance ≤0.2mΩ (Source: JAST); Copper: Copper alloy terminals (Source: Alibaba); Housing: PA66 flame-retardant housing (Source: JAST); Flame Retardancy: UL94 V-0 (Source: AGX)—Terminals: Silver plating + low resistance + flame retardancy (three key factors).
VII.
Procurement Recommendations
First, specify voltage (1500V); second, match current (including safety margin); third, verify interlock (HVIL); fourth, check shielding (360°);
fifth, select certified products (UL, TUV)—High-voltage connectors: Voltage + interlock + shielding (three core elements).
