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WF-5118/5120 INVERTER PRODUCT FEATURES
• Advanced Microprocessor Control Circuit Design
• High-Frequency Switching Mode Power Topology
• THD < 3%; Pure Sine-Wave Output Waveform
• High Surge Current Walk-In Capability (3:1 Crest Factor)
• High Overload Capability
• Rear Panel Mounted Resettable Circuit Breaker
• ± 3% Regulated AC Output Voltage
• Better than 80% System Eciency
• Automatic Utility Bypass Transfer Switch
• LED Status Display with Level Indication of Battery & Load
• Output Overload and Short-Circuit Protection
• Over Temperature Protection
• Over/Under DC Input Voltage Protection
• Battery Input Reverse Polarity Protection
• Two-Stage Low Battery Protection
• Remote On/O Control & Status Display Panel with 32-. Cable
• Listings Include UL 458 and FCC Class B
• 2-Year Limited Warranty
WF-5118/5120 INVERTER SAFETY FEATURES
DC Reverse-Polarity Battery Protection
e WF-5118/5120 Inverters are protected from reverse battery connection by fuses located
inside the enclosure. is feature prevents permanent damage to the inverter from a battery
connected into the circuit backwards. Blown reverse polarity fuses are not replaceable by
the user. e fuses are designed to protect RVs from catastrophic damage; once the fuses are
blown, the inverter must be replaced.
Over-Temperature Protection
If the internal temperature of the inverter exceeds a critical point, it will shut down and the Red
Fault LED on the front panel and remote switch will illuminate. is protects the unit from
excessive heat that may damage sensitive components. Remove or reduce the AC load and cycle
the power button to restart the unit.
Electronic Current Limiting
When the WF-5118/5120 Inverter is in the inverting mode, should the AC output current
exceed the maximum rating, the unit will shut down and the Red Fault LED on the front
panel and remote switch will illuminate. If this occurs, remove or reduce the connected load.
Cycle the power button on the front panel to restart the inverter.
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