TBB Power - IRD300 Ground Fault Detector

TBB solar IRD 300 PV Array insulation resistance detection (also known as earth fault detection) satisfies the need for detecting abnormal PV array (Open-circuit voltage range: 60-300V) insulation resistance to ground, with a high compatibility to work with non-isolated solar charge controllers. When abnormal PV array insulation resistance to ground is detected, the fault indication will be presented by means of: 

1) The alarm indicator light on the device 

2) Fault reminder sent via RS485 communication

3) An alarm replay output 

• Source Auxiliary power directly from the PV array under detection, no external adapter required
• Suitable for a single PV array or two arrays
• Built-in alarm relay output, fits applications without communication. Compatible with TBB power MPPT charge controller such as SP250 / SP150
• Support RS485 communcation
• Compact and lightweight design for easy installation and wiring