| Parameter | Value |
|---|---|
| Model | GVB351-BAB |
| Brand | GIGAVAC |
| Type | Bi-Directional DC switching (±) |
| Rated Load Voltage | 1000VDC |
| Rated Load Current | 500A |
| Coil Voltage | DC12V / DC24V / DC48V |
| Contact Arrangement | Main: SPST-NO · Auxiliary: SPST-NO |
| Mechanical Life | 300,000 cycles |
| Contact Resistance (Max) | 0.2 mΩ |
| Insulation Resistance | 100 MΩ @ 1000VDC |
| Dielectric Strength | 4000VAC |
| Shock (½ Sine, 11ms) | Actuated (closed): 50G · Non-actuated: 25G |
| Vibration (10–2000Hz) | 25G |
| Environmental Seal | IP67 & IP69K |
| Short Circuit Withstand | 20 ms @ 4,000A |
| Max. Break Current @ 400V (1 cycle) | ±2000A |
| Max. Break Current @ 1000V (1 cycle) | ±500A |
| Salt Fog | MIL-STD-810 |
| Weight (typical) | 0.44 kg (0.97 lb) |
| Operating Temperature | -55°C to +85°C (storage -70 to +150°C) |
| Certification | CE / CCC, UL 60947-4-1 |
| Feature | Benefit |
|---|---|
| ✅ True Bi-Directional Switching | Breaks up to ±2000A @ 400V and ±500A @ 1000V — handles current in both directions for charge/discharge and V2G/V2X systems. |
| ✅ High-Efficiency Dual DC Coils | Very low 12/24/48 VDC coil power, no EMI or cross-talk — ideal for battery-powered systems. |
| ✅ Arc-Suppression Gas | High fault-interrupt capability, rapid arc cooling, higher system efficiency and less heat. |
| ✅ Built-In Coil Suppression | Saves engineering time and parts cost by removing external coil suppression. |
| ✅ Not Position-Sensitive | Can be mounted in any position for easy installation in tight enclosures. |
| ✅ IP67 & IP69K Sealed | Withstands dust, water and high-pressure washdown for harsh vehicle / outdoor use. |
GVB351-BAB meets CE/CCC and UL 60947-4-1 standards. Test reports and certificates are available on request from our Download center.
| Application | Description |
|---|---|
| ⚡ EV DC Fast Charging | Connect/disconnect up to 1000VDC in high-power charging piles and DC fast chargers. |
| 🔋 Energy Storage Systems | Battery pack switching for grid-tied / off-grid ESS and BESS cabinets, including bidirectional charge/discharge paths. |
| 🚛 Battery Electric Mobility | Suitable for AGV, forklifts, electric trucks and special-purpose electric vehicles. |
| Item | Detail |
|---|---|
| Model | GVB351-BAB (Bi-Directional) |
| Brand / Origin | GIGAVAC · Jiangsu, China |
| MOQ | Flexible — contact sales for sample & volume pricing |
| Lead Time | 4–6 weeks |
| Payment | T/T, Trade Assurance, etc. (confirm with sales) |
| Customization | OEM coil voltage options (12V / 24V / 48V) and auxiliary arrangements available |
| Warranty | 1 year |
Q1. What is the rated voltage and current?
A: The GVB351-BAB is rated for 1000VDC / 500A and supports true bidirectional current flow (±), suitable for high-power EV charging, energy storage and battery test systems.
Q2. Which coil voltages are available?
A: Standard dual-coil options are DC12V, DC24V and DC48V. Other coil voltages can be discussed with our engineers.
Q3. What is the IP rating?
A: GVB351-BAB is sealed to IP67 and IP69K, protecting against dust, water jets and high-pressure washdown.
Q4. What certifications does it carry?
A: CE/CCC and UL 60947-4-1. Certificates and test reports are available on request.
Q5. What are the MOQ and lead time?
A: MOQ is flexible for samples and trial orders. Standard lead time is typically 4–6 weeks; confirm with sales for exact schedule.
Q6. What is the difference from the unidirectional GVB351-CAB?
A: The GVB351-BAB supports bidirectional (charge and discharge) current switching up to ±500A @ 1000VDC, ideal for V2G, V2X and bidirectional ESS applications, while the GVB351-CAB is designed for single-direction DC switching.
