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USER MANUAL 

EarthGuard – EG-300 

Australian Energy Research Labs 

AER013 – Rev 1.1 

21st July 2020

 

AER013 REV 1.1 

 
 
 
 
 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

General Specifications

 

Parameter

 

Typical

 

Weight

 

1.2 kg 

Dimensions (L x W x H)

 

140 x 230 x 110 mm 

Enclosure Type

 

Indoor Type 1 / IP20 

Operating Temperature

 

-25 to 60°C 

Storage Temperature

 

-25 to 80°C 

Connection Terminals

 

Screw Terminals (0.2 mm

2

 -> 2.08 mm

2

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

 

48V | 120V 

Input Load Under Test

 

1Mohm 

Input Load Not Under Test

 

300Mohm 

Leakage Trip Current 

(+/- 10%)

 

> 35uA | > 100uA  

Isolation to Low Voltage Side

 

1000V (Transient) 

Standards

 

EG 300

 

Electrical Safety

 

AS/NZS 3100:2017 

EMC (Domestic)

 

AS/NZS 61000.6.3:2012 

Specifications 

 

Summary of Contents for EarthGuard EG-300

Page 1: ...EarthGuard Earth Leakage Detection Installation Operation Manual Models EG 300...

Page 2: ...Solar Micro Hydro Micro Wind and Cathodic Protection applications Contact Information Address Unit 15 1015 Nudgee Rd Banyo QLD 4078 Australia Phone 61 07 3129 0330 Email sales aerl com au Website http...

Page 3: ...t Description 7 Firmware 7 Supported System Components 7 Installation 8 Installation Standards 8 Detection Requirements 8 Mounting the Device 8 Wiring Information 9 Wire and Disconnect Sizing 9 EarthG...

Page 4: ...ual be read before beginning installation Only qualified electricians and technicians should install the EarthGuard This manual is intended for all installation technicians and the system owner Do not...

Page 5: ...quired to disconnect or reinstall faulty parts AERL will pay the cost of freight to return the repaired charge controller to the customer within Australia or New Zealand only The method of freight wil...

Page 6: ...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 R...

Page 7: ...r 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 Firmware This ins...

Page 8: ...and PV Array if the array exceeds 60Vdc That said because the AERL and Victron regulators are not galvanically isolated only a single EarthGuard is required to cover both the array and battery bank d...

Page 9: ...orque all terminal connections to 0 6 Nm 5 in lb To install cabling and configure the device the 4 x M4 CSK Phillips Screws holding the lid in place must be removed When removing the lid gently discon...

Page 10: ...he DC and DC sense wires are at risk of mechanical damage in their installed location appropriately rated in line fusing is highly recommended due to the potential fault currents available from the co...

Page 11: ...while the device is powered down Alarm Indication Relay The EarthGuard features a dry contact signal relay for use with the CoolMax SRX and other external devices such as the Victron Venus GX in order...

Page 12: ...er present After several seconds the All Clear green LED should start blinking if the fault is no longer detected Simulating a Fault If you would like to test the EG 300 has been correctly installed t...

Page 13: ...v 1 1 21st July 2020 13 AER013 REV 1 1 Note The EarthGuard documentation is being improved regularly If the relevant situation is not documented please contact AERL at either support aerl com au or on...

Page 14: ...USER MANUAL EarthGuard EG 300 Australian Energy Research Labs AER013 Rev 1 1 21st July 2020 14 AER013 REV 1 1 Page intentionally left blank...

Page 15: ...USER MANUAL EarthGuard EG 300 Australian Energy Research Labs AER013 Rev 1 1 21st July 2020 15 AER013 REV 1 1 Page intentionally left blank...

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