Solterra STTL1200BG4820L — 1200 W 48 V Certified Portable Charger
Certified, Rugged, Compliant.
Technical Specifications
3-Year from date of invoice.
Detailed Specifications
PARAMETERS
| PARAMETER | VALUE |
|---|---|
| Rated Output Power | 1200 W |
| Nominal Battery Voltage | 48 Vdc |
| Output Voltage Range (CP operation) | 48–72 Vdc |
| Max Output Current | 20 A |
| Lowest Output Voltage | 16 Vdc |
| Max Output Power | 1200 W @220 Vac; 720 W @120 Vac (adaptive grid) |
| Output Ripple | < 200 mV |
| Efficiency | ≥ 90% @220 Vac |
| AC Input Voltage | 120 Vac / 220–240 Vac |
| Input Voltage Range | 85–270 Vac |
| Max Input Current | ≤ 7 A |
| Power Factor | 0.99 @220 Vac, full load |
| Input Frequency | 50/60 Hz |
| Input Phase | Single-phase three-wire |
| Output Waveform | Sine |
| Ingress Protection | IP65 (charger housing) |
| Cooling | Forced air cooling |
| Altitude | 2000 m |
| Operating Temperature | -25 °C to +65 °C |
| Storage Temperature | -40 °C to +95 °C |
| Input Wire Size | ≥ 1.5 mm² (≤ 14 AWG) |
| Output Wire Size | ≥ 3 mm² (≤ 12 AWG) |
| Auxiliary Power Output | 12 V/2 A; 24 V/1 A |
| Weight | 2.3 kg |
| Dimensions — Portable (L×W×H) | 233 × 132 × 80 mm |
| Dimensions — Onboard (L×W×H) | 253 × 135 × 80 mm |
| Mounting | Portable and onboard |
| Certification Class | Europe Series |
| Certification Details | CB / CE / KC / KCC / RCM / ECE R10 |
| Hipot (input–output) | Basic insulation: 2000 Vac, < 10 mA, 60 s |
| Hipot (input–case) | Basic insulation: 2000 Vac, < 10 mA, 60 s |
| Hipot (output–case) | Basic insulation: 1000 Vac, < 10 mA, 60 s |
| Surge Immunity | L-N: 4 kV (1 min interval) |
| EMC | Certified |
INTERFACE
| INTERFACE | VALUE |
|---|---|
| AC Input | 120/220–240 Vac, single-phase three-wire |
| DC Output | 48 V Li, 48–72 Vdc CP, 20 A |
| CAN | Optional |
| Auxiliary Power | 12 V/2 A; 24 V/1 A |
| Signals | Charging-lock, CHG signal, SW signal |
| Programming | CANbus external programming interface |
PROTECTIONS
| PROTECTION | DESCRIPTION |
|---|---|
| Input under/over-voltage | 280 Vac → stop + over-voltage alarm |
| Input overcurrent | Output power reduced (active monitoring) to stay under the input over-current threshold |
| Output over-voltage | Exceeds internal OV threshold → output relay cut + alarm |
| Output overcurrent | Exceeds internal OC limit → output relay cut + alarm |
| Output short circuit | Short → output shut down with current limit + alarm |
| Reverse polarity & no-load | Reverse battery → shutdown + alarm; missing or < ⅓ pack voltage → no output + alarm |
| Automatic shutdown | Charge time or end-voltage over internal max → stop charging + alarm |
| Over-temperature | Above set point → derate, then stop + alarm; auto-resume on cooldown; external probe option |
FEATURES
| FEATURE | VALUE |
|---|---|
| Cooling | Forced air cooling |
| Mounting | Portable and onboard (dual-mount) |
| Certification | Europe Series — CB / CE / KC / KCC / RCM / ECE R10 |
| Adaptive grid | 1200 W @220 Vac / 720 W @120 Vac |
| Auxiliary output | 12 V/2 A + 24 V/1 A |
| Indicators | Built-in indicator + isolation indicator |
Additional Details
The STTL1200BG4820L is a 1200 W certified portable charger for 48 V lithium packs, part of Solterra’s BG (Europe) certified series. It accepts a wide single-phase three-wire input (120 V and 220–240 Vac; 85–270 Vac range) with an adaptive-grid strategy — 1200 W at 220 Vac, 720 W at 120 Vac — and delivers a constant-power output of 48–72 Vdc at up to 20 A with ≥90% efficiency, PF 0.99 and a pure sine waveform.
It is internationally certified — CB, CE, KC, KCC, RCM and ECE R10 — IP65-sealed, forced-air cooled, and protected against input/output over- and under-voltage, overcurrent, short-circuit, reverse polarity, over-temperature (with derating) and over-time charging. A 12 V/2 A + 24 V/1 A auxiliary output, charging-lock/CHG/SW signals, optional CAN and a CANbus programming interface support integration; the unit mounts both as a portable charger and onboard.
Frequently asked questions
What is the Solterra STTL1200BG4820L — 1200 W 48 V Certified Portable Charger?
The STTL1200BG4820L is a 1200 W, 48 V certified portable EV charger — internationally certified (CB/CE/KC/KCC/RCM/ECE R10), IP65-sealed with pure sine output and wide 120/220–240 Vac input, for portable and onboard charging of lithium battery packs.
What are the key specifications of the STTL1200BG4820L?
Output — 48 Vdc · 20 A · 1200 W · ≥90% · IP65 · sine. Input — 120/220–240 Vac (range 85–270 Vac), 50/60 Hz, ≤7 A, PF 0.99, single-phase three-wire.
What are the STTL1200BG4820L's efficiency, ingress protection and operating conditions?
Peak efficiency: ≥ 90% @220 Vac. Operating temperature: -25 °C to +65 °C. Cooling: Forced air cooling.
What communication interfaces does the STTL1200BG4820L support?
CAN (optional); charging-lock / CHG / SW signals; CANbus programming interface; aux 12 V/2 A + 24 V/1 A.
What protection features does the STTL1200BG4820L include?
Built-in protections: Input under/over-voltage, Input overcurrent, Output over-voltage, Output overcurrent, Output short circuit, Reverse polarity & no-load, Automatic shutdown, Over-temperature.
What is the warranty on the STTL1200BG4820L?
3-Year from date of invoice.
