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The Go Power! 400 Watt Industrial Pure Sine Wave Inverter (GP-ISW400-12) converts 12 volt DC battery power into pure sine wave AC. It delivers 400 watts continuously, up to 460 watts for 1 minute and an 800 watt surge for 1 second to help loads start. A dual GFCI outlet sits on the front panel, and a DIP switch sets the output to 100, 110, 115 or 120 VAC at 50 or 60 Hz.
Go Power aims it at RVs, boats, work trucks and fleet vehicles that need clean power for laptops, TVs, game consoles and other small electronics. It is certified to UL 458, and the housing measures just 5.91 x 2.68 x 7.36 inches at 3.5 pounds.
The GP-ISW400-12 produces a pure sine wave with total harmonic distortion under 5% at normal load. Go Power describes pure sine wave as the same clean power as a wall outlet. A modified sine inverter, by contrast, can make sensitive electronics buzz or fail.
Many devices pull more power for a moment when they switch on. This inverter supplies an 800 watt surge for 1 second and handles 100% to 115% of its rating, up to 460 watts, for 1 minute.
Switch 4 on the front DIP switch turns power saving on. In this mode the inverter draws under 0.2 A, compared with under 1 A at no load with power saving off. Typical efficiency is 88%.
The front panel carries a North American dual GFCI outlet. Go Power lists its UL 458 certification as applying to the GFCI receptacle version, and lists the neutral as bonded.
A single status LED glows solid green in normal operation and uses orange and red blink patterns with beeps to flag overload, over or under temperature, over voltage and under voltage. The inverter sounds an under-voltage alarm at 10.5 V and shuts down if the voltage keeps falling. It restarts at 12.5 V, shuts down at 16.0 V input and shuts down within 1 second of a short circuit. A fuse protects the input against reverse polarity.
The front rocker switch has ON, OFF and REMOTE positions, and an RJ-11 remote port sits on the back panel. Go Power lists its optional GP-SWR-A remote for this inverter, so you can switch it on and off from a more convenient spot.
RVs and campers. Run a TV, a game console or a laptop from your 12V house battery bank.
Boats. Power small electronics from the house battery, with the inverter in a dry compartment.
Work trucks and fleet vehicles. Charge laptops and devices on the job from the truck's 12V system.
A modified sine inverter puts out a stepped approximation of AC. Go Power says that is fine for tools and lights but can make sensitive electronics buzz or fail. The GP-ISW400-12 puts out a true sine wave for TVs, laptops, consoles and chargers.
The two share the same 5.91 x 2.68 x 7.36 inch housing. The GP-ISW200-12 is rated 200 watts with a 250 watt surge and 89% typical efficiency. The GP-ISW400-12 doubles the continuous rating to 400 watts and raises the surge to 800 watts, at 88% typical efficiency. If a TV and a laptop might run together, the 400 watt model gives you more room.
Go Power recommends #6 AWG copper cable and a 60 A inline Class T fuse or circuit breaker for the GP-ISW400-12. Place the fuse as close to the positive battery terminal as possible, ideally within 18 inches, and keep the combined cable length to 10 feet or less. DC overcurrent protection is not included, and every install needs a battery disconnect. A circuit breaker can serve as both. Go Power pairs this inverter with its GP-DC-KIT1 install kit. The inverter is 12V only, and reversed cables can damage it and void the warranty, so check polarity before you connect.
Install it indoors or in a dry compartment, away from rain, snow and other fluids. Mount it close to the batteries but not in the same compartment, and never directly above them. Leave at least 4 inches of clearance around the vents, and mount it horizontally, never vertically. Go Power rates it to operate from -4°F to 104°F (-20°C to 40°C).
Anything whose running watts stay under 400 and whose startup surge stays under 800 watts. Go Power lists laptops, TVs, game consoles and other small electronics.
Go Power estimates about 37 A from a 12V bank at the full 400 watt load. Keep the inverter close to the batteries and use the recommended cable gauge.
No. Go Power states that this inverter is not intended for use with life support equipment or other medical equipment or devices.
Yes. The GP-ISW400-24 is the 24V model. The voltage is not switchable, so match the inverter to your battery bank.
Go Power warrants it for 2 years against defects in materials and workmanship.
The Go Power! 400 Watt Industrial Pure Sine Wave Inverter gives your 12V system 400 watts of UL 458 certified pure sine power with an 800 watt surge, a GFCI outlet, a power saving mode and remote capability. If you'd like help sizing cable, a fuse or a battery bank for it, the Outbound Power team is happy to help.
Go Power! 400 Watt Industrial Pure Sine Wave Inverter Specifications |
|
|---|---|
| Model | GP-ISW400-12 |
| Output | |
| Continuous output power | 400 W (± 3%) |
| Over rated power (1 minute) | 400 - 460 W (100% - 115%) |
| Surge power (1 second) | 800 W |
| Waveform | Pure sine wave, THD < 5% at normal load |
| Output voltage | 100, 110, 115 or 120 VAC ± 5% (DIP switch) |
| Output frequency | 50 or 60 Hz ± 0.5% (DIP switch) |
| Typical efficiency | 88% |
| DC Input | |
| Nominal battery voltage | 12 VDC |
| Input voltage range | 10.5 - 16.0 VDC |
| No-load current | < 1 A |
| Power saving mode current | < 0.2 A |
| Outlets and Connections | |
| AC output | Dual GFCI outlet (North America) |
| Remote port | RJ-11 |
| Main switch | ON / OFF / REMOTE |
| Function switch | 4-position DIP (voltage, frequency, power saving) |
| DC connections | DC input terminals, chassis ground |
| Protection | |
| Input protection | Reverse polarity (fuse), under voltage, over voltage |
| Output protection | Short circuit, overload, over temperature |
| Low battery alarm | 10.5 VDC ± 0.3 VDC |
| Low battery restart | 12.5 VDC ± 0.3 VDC |
| High battery shutdown | 16.0 VDC ± 0.3 VDC |
| High battery restart | 14.5 VDC ± 0.3 VDC |
| Over temperature shutdown | 80°C |
| Over temperature restart | 60°C |
| Short circuit response | Shuts down within 1 second |
| Installation | |
| Recommended DC cable | #6 AWG copper |
| Inline fuse or breaker | 60 A |
| Fuse type | Class T |
| Fuse location | Within 18 in (45 cm) of the battery |
| Combined DC cable length | 10 ft (3 m) maximum |
| Terminal torque | 9 - 10 ft-lb (11.7 - 13 Nm) |
| Vent clearance | 4 in minimum |
| Mounting | Horizontal (base down, base up or wall), not vertical |
| Location | Indoor or dry compartment |
| Physical | |
| Dimensions (W x H x L) | 5.91 x 2.68 x 7.36 in (150 x 68 x 187 mm) |
| Weight | 3.5 lb (1.6 kg) |
| Cooling | Temperature and load controlled fan |
| Operating temperature | -4°F to 104°F (-20°C to 40°C) |
| Storage temperature | -22°F to 158°F (-30°C to 70°C) |
| Humidity | 10 - 95% RH, non-condensing |
| MTBF | 130,000 hours |
| Neutral | Bonded |
| Certifications and Warranty | |
| Safety | Certified UL 458 (GFCI receptacle version) |
| EMC | FCC Part 15, Class B |
| Warranty | 2 years |
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