Phocos PSW-B 500W: Compact Off-Grid Power In One Box
Small systems should not need a wall full of separate boxes. The Phocos Any-Grid PSW-B-0.5KW-120/12V combines a 500W pure sine wave inverter, an MPPT solar charge controller and an AC battery charger in one compact unit. It suits cabins, sheds, RV-style setups and small backup systems running on a 12V battery bank.
Why You'll Love The Phocos PSW-B-0.5KW Inverter Charger
Three devices in one. The built-in MPPT controller takes up to 600W of usable solar, and the AC charger adds up to 20A from the grid or a generator. You skip buying a separate charge controller and battery charger.
Clean 120V power. Pure sine wave output at 120 Vac (programmable 110 to 127 Vac) runs sensitive electronics, with 2x surge for 5 seconds for motor starts.
UPS-style switchover. When the grid or generator drops, it switches to off-grid mode in about 10 ms in UPS mode. Your loads keep running without a hiccup.
Keeps charging when off. The charge controller keeps working even if the inverter is switched off, so batteries stay topped up. It is also compatible with lithium batteries.
Your life, with the Phocos PSW-B-0.5KW Inverter Charger
Your cabin has two panels on the roof and a 12V battery in the corner. The Phocos PSW-B keeps the lights, router and a small fridge running, and tops the battery off from a generator on cloudy weekends. One box, quietly doing three jobs.
The Phocos PSW-B-0.5KW Inverter Charger in a nutshell
500W pure sine wave inverter
500 VA/W nominal output, peak efficiency over 90% from battery, THD under 5% on linear loads.
MPPT solar charging
600W usable solar, 750 Wp max array, 15 to 80 Vdc MPP range and 100 Vdc max open circuit voltage.
AC charging and pass-through
20 A max AC charging with a 4-stage algorithm with equalization, and 10 A max AC input.
Easy to monitor
Display with 3 LEDs, buttons and an LCD screen, plus RS-232 and USB connectivity and an alarm buzzer.
Phocos PSW-B-0.5KW Inverter Charger specifications
Inverter (off-grid mode)
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Model: PSW-B-0.5KW-120/12V
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Nominal AC output power: 500 VA / 500 W
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Output waveform: Pure sine wave
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Output voltage: 120 Vac ±5% default (programmable 110 to 127 Vac)
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Output frequency: 50 Hz default or 60 Hz (programmable)
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Surge capacity: 2x nominal power for 5 seconds
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Peak efficiency (from battery): Over 90%
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THDv: Under 5% linear load, under 10% non-linear load
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Transfer time: 10 ms typical (UPS mode), 20 ms typical (appliances mode)
Battery and charging
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Nominal battery voltage: 12 Vdc
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Max. AC charging current: 20 Adc
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Boost voltage: 14.6 Vdc flooded, 14.4 Vdc AGM / gel
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Float voltage: 13.8 Vdc
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Charging algorithm: 4-stage with equalization
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High battery disconnect / return: 16 Vdc / 15 Vdc
Solar (MPPT)
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Max. usable solar power: 600 W
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Max. solar array power: 750 Wp
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Max. array open circuit voltage: 100 Vdc
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MPP voltage range: 15 to 80 Vdc
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Max. usable solar input current: 40 Adc
AC input (grid mode)
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Nominal AC input voltage: 110 / 120 / 127 Vac programmable
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Max. AC input current: 10 Aac
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Max. AC input voltage: 150 Vac
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Input frequency: 50 / 60 Hz
General
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Dimensions (H x W x D): 9.4 x 13.5 x 3.8 in (239 x 343 x 97 mm)
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Net weight: 9.9 lb (4.5 kg)
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Idle self-consumption: Under 15 W
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Operating temperature: 14 to 122°F (-10 to 50°C)
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Ingress protection: IP21, indoor use
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Connectivity: RS-232, USB
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Certifications: CE, RoHS
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Warranty: 24 months from date of purchase
Let the experts help you find your perfect Phocos PSW-B-0.5KW Inverter Charger setup
Sizing a small system means matching panels, battery and loads to the Phocos PSW-B-0.5KW. Send us what you want to power and we will help you build a setup that works.
Email support@kratopower.com or call +1 888-855-7286.
Phocos PSW-B-0.5KW Inverter Charger documents and materials
Safety disclaimer: Inverter chargers connect to batteries, solar arrays and AC power. Installation should be carried out by a licensed electrician in line with local electrical codes and the manufacturer's manual. You use this product at your own risk. The content on this page is general product information, not professional or medical advice. If you have any doubt, consult a qualified professional.
