Description
Utilizing proprietary detection techniques, the AERL EarthGuard Insulation Monitoring Device simultaneously monitors the unearthed PV Array (60 - 300V) and Battery Storage System (48/120V) for conductor insulation degradation. Installed on the battery bus, the EarthGuard monitoring device satisfies the earth fault detection requirements of both AS/NZS 5033:2014 & AS/NZS 5139:2019 with onboard audio/visual alarms and an alarm relay output for external fault indication. Featuring support for full integration with AERL’s CoolMax SRX charge controller range, EarthGuard can be utilized in an integrated arrangement or as a standalone device for use with approved third-party controllers, power conversion equipment and battery systems.
FEATURES
- 60 – 300V PV Monitoring Range
- Supports 48V & 120V Batteries
- One EarthGuard Per System 1
- High Accuracy Detection
- Audio & Visual Alarms
- Alarm Indication Relay
SPECIFICATIONS
| General Specifications | |
| Parameter | Typical |
| Weight | 1.2 kg |
| Dimensions (L x W x H) | 140 x 230 x 110 mm |
| Enclosure Type | -25 to 60°C |
| Enclosure Type | Indoor Type 1 / IP20 |
| Storage Temperature | -25 to 80°C |
| Connection Terminals | Screwless Terminals (0.25 mm2 -> 5.25 mm2 ) |
| Low Voltage Side | EG 300 |
| Input Power (12V Input) | 10 – 14 Vdc (12V Nominal) |
| Max Power Consumption (12V Input) | 120mA |
| Input Power (5V Input – USB C) | 4.5 – 5.5 Vdc (5V Nominal) |
| Max Power Consumption (5V Input) | 290mA |
| Alarm Indication Relay | Signal (Dry Contact) |
| High Voltage Side | EG 300 |
| PV Array Monitoring Range | 60 – 300 Vdc |
| Supported Battery Voltages | 48 Vdc | 120 Vdc |
| Input Load Under Test | 0.5 Mohm |
| Input Load Not Under Test | 300 Mohm |
| Leakage Trip Current (+/-10%) | > 80uA | > 210uA |
| Isolation to Low Voltage Side | 1000V (Transient) |
| Standards | EG 300 |
| Electrical Safety | AS/NZS 3100:2017 |
| EMC (Domestic) | AS/NZS 61000.6.3:2012 |