





WATTSTUNDE
WATTSTUNDE® 300 W / 600 W 12 V Sine Wave Inverter WS12/300SI
WATTSTUNDE® Sine Wave Inverter 300 W - WS12/300SI
Compact and reliable inverter with pure sine wave for powering 230 V AC consumers.
Efficient conversion of 12 V (DC) to 230 V (AC)
The WS12/300SI inverter generates 230 V AC from the DC voltage of the connected battery, which is ideal for operating 230 V household appliances, chargers or other consumers.
Common devices such as computers, pumps and fans can be operated just as easily as other small consumers.
The low standby consumption makes it an economical entry-level device when a clean sine wave voltage is required.
Since the fan is load-controlled, further valuable energy is saved.
The practical USB port allows mobile phones and tablets to be charged directly without an additional power supply unit.
Comfortable all-rounder
The integrated LEDs show the operating status, so that the device's status is always visible.
If the battery capacity runs low, an acoustic signal warns the user so that the load can be switched off in good time.
If the battery voltage falls below a critical level, the inverter switches itself off automatically to prevent deep discharge of the battery.
The integrated fan runs quietly and cools the microelectronics, so that even large loads can be operated safely.
All cables required for connection are included with the device, so that installation can begin immediately.
The device is characterized by the following:
- Pure sine wave
- Converts 12 V to 230 V
- 1 x Schuko socket on the device
- 1 x USB
- Manual on/off switch
- Overheat protection functions
- Automatic shutdown if battery capacity is too low (deep discharge protection)
- Intelligent SoftStart function also enables the operation of inductive loads
- Load-controlled fans
- Power like at home (AC voltage and Schuko socket)
- Warranty period: 2 years
Scope of delivery
- 1x WATTSTUNDE® Sine Wave Inverter 300 W WS12/300SI
- 1x Battery connection cable 4mm² 53cm (with M8 ring terminals & crocodile clips)
- 2x Blade fuse
- Operating instructions (German / English)
Note:
Observe starting currents!
When connecting inductive devices (hotplate, drill, refrigerator, etc.), note that these often require 3–10 times more power for a short time to start up than is stated on the type plate.
The maximum short-term power demand must not exceed the maximum power of the inverter!
Technical data
| WS12/300SI | |
|---|---|
| Input voltage | 12V DC |
| Output voltage | 230 V AC / pure sine wave |
| max. continuous output power | 300 W |
| Peak load | 600 W |
| USB output | 5 V / 2.1 A |
| Self-consumption standby | < 0.8 A |
| Output frequency | 50 Hz |
| Output connection | Schuko |
| Weight | 0.8 kg |
| Dimensions (LxWxH) | 225 x 110 x 70 mm |
















