BRUSA HyPower OBC768-3p OBC7 On-Board Charger

The BRUSA HyPower OBC768-3p OBC7 is a high-power on-board charger designed for heavy-duty and commercial electric vehicles — from trucks and buses to off-highway and construction machinery. The OBC768-3p supports three-phase AC charging up to 22 kW and manages DC fast charging, including DC contactor driving, across a 400–860 V DC battery range. Its AEC-Q automotive-grade component design, galvanic isolation with reinforced insulation and IP6K9K/IP6K7D protection make it a robust choice for demanding vehicle platforms.

The OBC768-3p combines an integrated active power-factor-correction stage with an AUTOSAR-compliant architecture and flash-bootloader software updates, delivering 22.08 kW nominal three-phase output at 95 / 96 % nominal/peak efficiency with a power factor of 0.98 and THDi below 4 %. Charging communication supports CCS1, CCS2, ISO 15118-2, IEC 61851 and DIN Spec 70121, and the vehicle interface runs CAN 2.0a or J1939 at 250 / 500 / 1000 kbps with CAN-FD hardware readiness. The charger is designed to ISO 26262 with functional-safety goals rated up to ASIL B, an advanced cybersecurity concept with a hardware security module to ISO 21434, UNECE R155 and R156, a passive HV interlock and active/passive discharge.

The OBC768-3p integrates into the vehicle through configurable CAN IDs, plug-lock and LED control, inlet management and DC charge-contactor control, and supports scalable power through parallel operation of multiple units. It interfaces with standard charging infrastructure via SAE J1772, IEC 61851 or GB/T 18487.1, wakes the vehicle over CAN with a Type 2 inlet, and runs from a 9–32 V low-voltage supply with reverse-polarity protection. Shown specifications are valid for the series product and subject to change; some cybersecurity functions remain under ongoing assessment.

Key Specifications:

• Model: OBC768-3p (BRUSA HyPower OBC7)
• Type: Three-phase on-board charger (OBC) with DC fast-charge management
• AC Input (nominal): 230 / 400 V_RMS (L–N / L–L), 3-phase
• AC Input Range: 175–288 V (L–N) / 300–500 V (L–L)
• AC Current (nominal/max): 32 / 32 A_RMS
• Frequency Range: 45–65 Hz
• DC Output Voltage Range: 400–860 V_DC
• DC Current (nominal/max): 36 / 36 A_DC
• Nominal Power (3-phase): 22.08 kW
• Efficiency (nominal/peak): 95 / 96%
• Power Factor (min, load ≥50%): 0.98
• THDi at full power: < 4%
• Operating Modes: HV DC current control; HV DC voltage control incl. HV DC pre-charge
• EVSE Interface (AC): SAE J1772, IEC 61851 or GB/T 18487.1
• DC Charging Communication: CCS1, CCS2, ISO 15118-2, IEC 61851, DIN Spec 70121
• Vehicle Communication: CAN 2.0a or J1939 @ 250 / 500 / 1000 kbps; CAN-FD ready (SW upgrade, up to 2/5 Mbps)
• Vehicle Wake-up: by OBC via CAN (Type 2 inlet); wake-up inputs discrete, CAN, charging plug (PP)
• LV Supply: 9–32 V_DC; reverse-polarity protected (KL15, KL30, KL31, KL30C)
• Quiescent / Sleep Current: 0.2 / 200 mA (max)
• Features:
  • Integrated active power-factor correction
  • DC fast-charge management incl. DC contactor driving
  • Configurable CAN ID
  • Plug-lock control (up to 2), LED control (up to 4)
  • Inlet management; DC charge-contactor control
  • Parallel operation for scalable power
  • AUTOSAR-compliant architecture; flash-bootloader SW updates
  • Digital input × 1 (status via CAN)
• Functional Safety: designed to ISO 26262; safety goals rated QM to ASIL B
• Cybersecurity: to ISO 21434; UNECE R155 and R156 (some functions under ongoing assessment)
• HV Safety: galvanic isolation, reinforced insulation, passive HV interlock; passive discharge AC/DC 5 / 120 s; HIPOT 2.4 / 2.9 kV_DC; insulation resistance 30 / 5 MΩ (start/end of life)
• Protection: IP6K9KD and IP6K7D (mated) / IPxxB (unmated); ISO 20653
• Cooling: 50/50 water/glycol; flow 10 / 20 l/min (nom/max); pressure drop ≤ 100 mbar @ 10 l/min, 25°C
• Coolant Temperature: −30°C to +65°C (full power); −40°C to +85°C (reduced power)
• Ambient Temperature: −40°C to +85°C
• Rated Altitude: 4000 m
• Standards / EMC: UNECE R10, RoHS; CISPR25/32, ISO 7637/10605/11452, IEC 61000-6; electrical safety ISO 17409, ISO 6469, LV123, IEC 60664
• Service Life: 40,000 charging hours / 15 years
• Dimensions (without connectors): 97 × 355 × 481 mm
• Weight (dry, max): 16.8 kg
• Note: Specifications valid for the series product; subject to change.

📄 Data Sheet (PDF)