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Discover the HIITIO HCF40B Series DC Contactor, a compact and reliable solution designed for high-voltage DC applications. This contactor features a maximum switching voltage of up to 750VDC, rated current of 40A, and a single-pole single-throw normally open (SPST-NO) main contact configuration with no auxiliary contacts. Powered by a 12VDC or 24VDC coil, it operates efficiently in extreme environments from -40°C to +85°C and 5% to 85% RH. Weighing only about 55g, its small size and light weight make it ideal for space-constrained installations.
| Parameter | Value |
|---|---|
| Max. Switching Voltage | 750VDC (450VDC / 750VDC model dependent) |
| Rated Current | 40A |
| Contact Arrangement | SPST-NO |
| Contact Voltage Drop | ≤0.4V (at 40A) |
| Limiting Short-time Current | 60A:1800s; 80A:60s; 160A:5s; 240A:3s |
| Electrical Life (Resistive Load) | 450V Model: 10A 450VDC 10000 ops; 40A 450VDC 1000 ops; 40A 450VDC 75000 ops (Only Making) 750V Model: 40A 750VDC 50000 ops (Only Making) |
| Dielectric Strength (Initial) | Between Main Contacts and Coil: ≥3000VAC (1min) Between Open Main Contacts: ≥2500VAC (1min) |
| Insulation Resistance (Initial) | ≥1000MΩ (750VDC) |
| Shock Resistance (Functional) | 20g Half-Sine Wave 11ms |
| Shock Resistance (Destructive) | 50g Half-Sine Wave 6ms |
| Vibration Resistance (Functional) | 49m/s² (10~500Hz) |
| Operate Time | Max: 30ms |
| Release Time | Max: 10ms |
| Mechanical Life | 2×10⁵ ops |
| Weight | Approx 55g |
| Coil Rated Voltage | 12VDC / 24VDC |
| Pick-up Voltage | ≤9VDC / ≤18VDC |
| Drop-out Voltage | ≥1VDC / ≥2VDC |
| Rated Operating Power | Approx 3W |
| Max. Allowable Voltage | 16VDC / 32VDC |
HIITIO® was established in 2018 as a result of Hecheng Electric introducing a mature R&D team. HIITIO specializes in producing high-voltage DC electrical devices for EV, solar energy systems, and energy storage applications.
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