Solterra STTL450A4809L — 450 W 48 V Portable Charger
Rugged, Portable, Fast-Charging.
Technical Specifications
Detailed Specifications
PARAMETERS
| PARAMETER | VALUE |
|---|---|
| Nominal Battery Voltage | 48 V |
| Rated Output Power | 450 W |
| Max Output Power | 450W (@220Vac, maximum output power of this series) 300W (@120Vac) |
| Output Voltage Range | 39V - 60V |
| Max Output Current | 9 A |
| Lowest Output Voltage | 16 V |
| Efficiency | ≥90% @220VAC |
| THDi | <5% |
| Voltage Regulation | ≤±0.2 Vdc |
| Current Regulation | ≤±1% F.S. |
| Power Factor | 0.99@220VAC, full load |
| Rated Input Voltage | 300W model @ 110VAC - 240VAC ; 450W model @ 200VAC - 240VAC |
| Input Voltage Range | 85VAC - 270VAC 155VAC - 270VAC |
| Max Input Current | 2.5 A |
| Input Frequency | 50/60Hz |
| Cooling | Forced air cooling |
| IP Rating | IP65 (charger housing) |
| Operating Temperature | -25℃ - 65℃ |
| Storage Temperature | -40℃ - 95℃ |
| Altitude | 2000m |
| Vibration & Shock | IEC 60068-2 |
| Drop Resistance | 1m height |
| Insulation Resistance | >10MΩ (500VDC) |
| Design Life | 10 Years |
| Enclosure Type | Die Cast Aluminium |
| Encapsulant | Silicone Potting Compound |
| Connectors | Customizable input and output connectors, harness |
| Surge Immunity | 6kV CM, DM with GDT |
| Hipot Input→Output | Basic insulation: 2000VAC <10mA 60s |
| Weight | 1 kg |
| Dimensions L×W×H | 183.5⤫123⤫62 mm |
| Mounting | Portable |
INTERFACE
| INTERFACE | VALUE |
|---|---|
| Input | 300W model @ 110VAC - 240VAC ; 450W model @ 200VAC - 240VAC (85VAC - 270VAC 155VAC - 270VAC) |
| Output | 39V - 60V, 9 A |
| CAN | (Isolation) Optional |
| External Indicator | Available |
| Built-in Indicator | Available |
PROTECTIONS
| PROTECTION | DESCRIPTION |
|---|---|
| Input Under/Over Voltage | When the AC input voltage is lower than 150Vac, the charger stops working and an under-voltage alarm occurs; when the AC input voltage is higher than 280Vac, the charger stops working and an over-voltage alarm occurs; |
| Input Overcurrent | The charger reduces the output power to ensure that the input over current (active monitoring) thresholds are not breached. |
| Output Over-Voltage | If output voltage exceeds the internal OV threshold, the charger immediately cuts the output relay and gives an alarm. |
| Output Overcurrent | If load current exceeds the internal OC limit, the charger immediately cuts the output relay and gives an alarm. |
| Output Short Circuit | If the output is short-circuited, the charger shuts down output with current limit and an alarm is issued. |
| Reverse Polarity & No-Load | If the battery is connected in reverse, the charger shuts down output and alarms (reverse polarity protection not active during Activation mode). If battery voltage is missing or <⅓ of rated pack voltage, the charger alarms and gives no output. |
| Automatic Shutdown | If charging time or charging end voltage exceeds the internal maximum limit, it stops charging and alarms. |
| Over-Temperature | If internal or ambient temperature goes above the set value, it first reduces current (derating), then stops and alarms; charging resumes automatically when temperature falls to the recovery point. With an external probe, it can also monitor battery/ambient temperature. |
FEATURES
| FEATURE | VALUE |
|---|---|
| Charging Lock | Available |
| CANbus Ext. Program Interface | Available |
Additional Details
This charger is a compact, high-efficiency solution with integrated protections. It offers multiple communication options for seamless system integration and is designed for long-term reliability, thermal robustness and easy installation, making it ideal for both OEM and retrofit deployments. The safety- and reliability-focused architecture delivers proven durability in harsh automotive and industrial conditions, with active PFC and digital LLC control for well regulated charging. Reliable hardware with integrated prognostics and health monitoring is fully potted in soft silicone inside a rugged sealed aluminium die-cast enclosure that resists vibration, shock, dirt, chemicals and fluids. It supports both on-board and off-board installation with an optional carry handle, and uses advanced charging algorithms to ensure safety throughout the charge process.
