ST-H-35050-6BF — 20 kW 350 V Portable EV Charger (IP65)
Rugged, Portable, Fast-Charging.
Technical Specifications
3-Year from date of invoice.
Detailed Specifications
PARAMETERS
| PARAMETER | VALUE |
|---|---|
| Rated Output Power | 20 kW |
| Nominal Battery Voltage | 350 Vdc |
| Output Voltage Range | 135–450 Vdc |
| Max Output Current | 50 A |
| Max Charging Power | 20 kW @3P 380/440/480 Vac (derated at 3P 220 Vac / 1-phase) |
| Efficiency | Max 97% |
| AC Input Voltage | 1P 110/120/220/240 Vac; 3P 220/380/440/480 Vac (3P+PE, B-version) |
| Max Input Current | 30 A |
| Max Input Power | 21 kW @3P 480 Vac; 11 kW @3P 220 Vac; 7 kW @1P 220 Vac; 3.4 kW @1P 110 Vac |
| Input Frequency | 45–65 Hz |
| Power Factor | > 0.95 (3P) / > 0.99 (1P) |
| Ingress Protection | IP65 |
| Cooling | Forced air (fan) |
| Form Factor | Portable — carry handle, LCD display + control buttons |
| Operating Temperature | -40 °C to +55 °C full power; +55 to +75 °C with linear derating |
| Storage Temperature | -40 °C to +85 °C |
| Battery Compatibility | 350 V lithium |
| Parallel Operation | Supported (multiple units for higher power) |
| Certifications | CE, UL |
INTERFACE
| INTERFACE | VALUE |
|---|---|
| AC Input | 1P (L/N/PE) or 3P+PE, 220/380/440/480 Vac |
| DC Output | + / − charging cable/connector |
| CAN | BMS CAN (CANH/CANL), 125/250/500 kBd |
| Display | On-unit LCD + control buttons |
| Handle | Integrated carry handle (portable) |
PROTECTIONS
| PROTECTION | DESCRIPTION |
|---|---|
| Input over/under-voltage | 3P: max 660 / min 150 V; 1P: max 305 / min 85 V |
| Output over/under-voltage | Quick HV-side sensor; immediate shutdown on battery overvoltage |
| Short circuit | Output short-circuit detected and protected |
| Over-temperature | Power derate above +55 °C; shutdown above +75 °C |
| Insulation / ground fault | Initial isolation > 20 MΩ; insulation/ground detection |
| Overcurrent | Current foldback or shutdown; per-phase fusing |
| Surge / lightning | High-energy overvoltage absorbed by MOV/surge elements |
| Reverse polarity | Battery-reversal detection |
FEATURES
| FEATURE | VALUE |
|---|---|
| Cooling | Forced air (fan); derate >55 °C, stop >75 °C |
| Isolation | Galvanic isolation: AC grid ↔ battery/vehicle DC |
| Parallel | Multiple units in parallel for higher power |
| Battery types | Lithium (lead-acid on lower-voltage variants) |
| Portability | Rugged IP65 portable enclosure with carry handle and on-unit display |
Additional Details
The ST-H-35050-6BF is a 20 kW portable EV charger for 350 V lithium battery systems, built on the ST-H portable charging platform. It accepts a wide AC input — single-phase 110–240 Vac and three-phase 220/380/440/480 Vac (3P+PE) — and delivers up to 50 A across a 135–450 Vdc output window with up to 97% efficiency, all from a rugged carry-handle enclosure with an on-unit LCD and control buttons.
The unit is fully galvanically isolated between the AC grid and the battery/vehicle DC system, sealed to IP65, and CAN-controlled (BMS CAN), with multiple units operable in parallel for higher charging power. Comprehensive protections (input/output OVP/UVP, short-circuit, over-temperature derating, insulation-fault and reverse-polarity detection) and CE/UL compliance suit field service and high-voltage fleet charging. Model code ST-H-35050-6BF (350 V / 50 A series, B = 3-phase 220–480 Vac input, F = fan cooling).
Frequently asked questions
What is the ST-H-35050-6BF — 20 kW 350 V Portable EV Charger (IP65)?
The ST-H-35050-6BF is a 20 kW, 350 V portable EV charger delivering 135–450 Vdc at up to 50 A, with wide single- and three-phase AC input (110–480 Vac), IP65 sealing and CAN control — a galvanically isolated, fan-cooled portable charging unit for high-voltage lithium fleets.
What are the key specifications of the ST-H-35050-6BF?
Output — 350 Vdc · 50 A · 20 kW · ≤97% · IP65 · CAN. Input — 1P 110/120/220/240 Vac · 3P 220/380/440/480 Vac (3P+PE) · 45–65 Hz · ≤30 A · PF >0.95.
What are the ST-H-35050-6BF's efficiency, ingress protection and operating conditions?
Peak efficiency: Max 97%. Operating temperature: -40 °C to +55 °C full power; +55 to +75 °C with linear derating. Cooling: Forced air (fan).
What communication interfaces does the ST-H-35050-6BF support?
BMS CAN (CANH/CANL), 125/250/500 kBd; on-unit LCD display with control buttons.
What protection features does the ST-H-35050-6BF include?
Built-in protections: Input over/under-voltage, Output over/under-voltage, Short circuit, Over-temperature, Insulation / ground fault, Overcurrent, Surge / lightning, Reverse polarity.
What is the warranty on the ST-H-35050-6BF?
3-Year from date of invoice.
