Zwy
Emperor Of Solar
Given a choice for fine wire, I prefer a crimped on lug terminal. If it is super fine wire, it probably should have a ferrule.
Magic Smoke came out......... ##it happens
- Thread starter Zwy
- Start date
EG4 Solar Charge controller advertisement:
""""
Using technology from the EG4 3kW All-in-One Solar Inverter, the EG4 MPPT100-48HV is a simple, affordable, yet reliable solar charge controller MPPT(Maximum Power Point Tracking).
The EG4 MPPT100-48HV solar charge controller extracts the maximum available power from your PV modules and safely converts it to a lower voltage to charge your battery bank. Optimize your new or existing solar power system by adding this unit and take advantage of additional solar harvesting capabilities.
Powerful PV array MPPT voltage range - No need for combiner boxes
An MPPT, or maximum power point tracker is a DC-to-DC converter that optimizes the power between the solar panel array, and the battery bank. Basically, they convert a higher voltage DC output from solar panels down to the lower and consistent voltage needed to charge batteries.
""""""
signaturesolar.com
The Above is stated based on their EG4 3000 inverter with 500VDC MPPT Let's look at that Advertising:
""""""
The EG4 3000EHV-48 is a 3000W all-in-one, multi-function inverter/charger; it combines the capabilities of an inverter, MPPT solar charger, and battery charger to offer uninterrupted power support in a single, portable-sized package. Its comprehensive LCD display offers user-configurable and easy-accessible button operation including battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.
This compact powerhouse is perfect for small barn builds and small critical loads panels as it easily supports lights, an average fridge/freeze, or a 9K BTU Mini Split.
BONUS KIT INCLUDED ($149 value)
signaturesolar.com
Notice anything missing from the first page specs...something that should be listed as it is important?
Had to dig for it but the current with 500vdc on EG4 3000 inverter is 18a max . So it is lower.
Mppt are dc to dc conversion. With step up - step down transformers when you step up voltage to get higher volts less amps. When you step down voltage amps tries to rise. They obviously can’t feed 500vdc into the batteries. I’ve never seen a print on these mppt…. Anybody got one?
The mppt you have is the EG4 3000 MINUS THE 3000 INVERTER section..
OP earlier post
“‘’’If I was running parallel strings where the amps would double, then I would be concerned with wire heating resulting in power loss. At 12.67A at peak sun, it is not a concern with running 10AWG in a single string.”’’’’
‘’’Vmp of my panels 41.84V. Imp is 12.67A. 8S comes to Vmp of 335V.“
~4241 watts
According to their specs you are GOLDEN. You got 2 EG4 mppt ~ $800.00 FOR much less then Victron 450/100. ~$1230.00. ~$430 savings goes long ways towards wire. Look at that victron. Think Victron recommend battery 2awg wire….for that one. Victron Recommended Fuse ~ 125 - ~150amp …..cross section is wire concern with dc.
Interesting
Interesting.
…. My PV for 100ft run of red and 100ft run of black was around ~$115 total. Understand you on the conduit ….
Thanks
""""
Using technology from the EG4 3kW All-in-One Solar Inverter, the EG4 MPPT100-48HV is a simple, affordable, yet reliable solar charge controller MPPT(Maximum Power Point Tracking).
The EG4 MPPT100-48HV solar charge controller extracts the maximum available power from your PV modules and safely converts it to a lower voltage to charge your battery bank. Optimize your new or existing solar power system by adding this unit and take advantage of additional solar harvesting capabilities.
Powerful PV array MPPT voltage range - No need for combiner boxes
- Max open-circuit voltage of 500VDC
- 5500W max usable solar panel PV array power when combining 2 strings with a branch connector
- 22A max PV string current
- Capable of charging a 5.12kWh EG4 battery in ~1 hour @ 100A
- Recommended operating usage: 80A total or 30A per battery to maintain battery lifespan
- 48-62VDC charging voltage (default 56Vdc)
- PV array DC disconnect breaker
- Built-in battery breaker for added protection
- 94% max charge controller efficiency
- Less than 25W self-consumption
- The MPPT charger is able to communicate with EG4 batteries when operating with non-EG4 compatible inverters via its RS485 BMS port.
An MPPT, or maximum power point tracker is a DC-to-DC converter that optimizes the power between the solar panel array, and the battery bank. Basically, they convert a higher voltage DC output from solar panels down to the lower and consistent voltage needed to charge batteries.
""""""
EG4 Solar Charge Controller MPPT | 500VDC 100A | MPPT100-48HV
EG4 MPPT100-48HV Solar Charge Controller: Efficiently manages up to 500VDC, 100A for optimal solar energy conversion and battery charging.
signaturesolar.com
The Above is stated based on their EG4 3000 inverter with 500VDC MPPT Let's look at that Advertising:
""""""
EG4 3kW Off-Grid Inverter | 3000EHV-48 | 3000W Output | 5000W PV Input | 500 VOC Input
3000EHV-48's Design Improvements:- Larger Battery Terminal Connections(Supports up to 2 AWG)
- Minor Improvements to the exterior design
- Fully compatible with V1 units(may require a simple firmware update, can be found on www.eg4electronics.com)
The EG4 3000EHV-48 is a 3000W all-in-one, multi-function inverter/charger; it combines the capabilities of an inverter, MPPT solar charger, and battery charger to offer uninterrupted power support in a single, portable-sized package. Its comprehensive LCD display offers user-configurable and easy-accessible button operation including battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.
This compact powerhouse is perfect for small barn builds and small critical loads panels as it easily supports lights, an average fridge/freeze, or a 9K BTU Mini Split.
BONUS KIT INCLUDED ($149 value)
- Wifi Stick with Remote Settings Adjustment
- 125A UL listed Nader Breaker and Din Bracket
- 6Ft 4 AWG Red and Black Battery Cables
Features:
Built for Off-Grid
- 3000W Continuous Output
- 500 VDC Max Input
- Parallel up to 12 Units for a 36kW System
- Ideal for Small Barn, Cabin, RV Builds, Critical Load Panels, or Mini Split Air Conditioners
- BMS Communication Available With All EG4 Batteries
- Upgraded Active Cooling & Circuit Components(When compared to competing models)
Performance Components
- Lightweight
- Smaller Footprint Than Other Comparable Models
- Overload Protection
- Overtemperature Protection
- Short Circuit Protection
- User Customization via LCD Display
Reliability & Safety Testing
- 3-Year Warranty Supported and serviced out of Texas
EG4 3kW Off-Grid Inverter | 3000EHV-48 | 3000W Output | 5000W PV Input | 500 VOC Input
Power your off-grid setup with the EG4 3kW Off-Grid Inverter (Model 3000EHV-48), ensuring reliable energy conversion and performance for residential and small commercial applications. Available now at Signature Solar.
signaturesolar.com
Notice anything missing from the first page specs...something that should be listed as it is important?
Had to dig for it but the current with 500vdc on EG4 3000 inverter is 18a max . So it is lower.
Mppt are dc to dc conversion. With step up - step down transformers when you step up voltage to get higher volts less amps. When you step down voltage amps tries to rise. They obviously can’t feed 500vdc into the batteries. I’ve never seen a print on these mppt…. Anybody got one?
The mppt you have is the EG4 3000 MINUS THE 3000 INVERTER section..
OP earlier post
“‘’’If I was running parallel strings where the amps would double, then I would be concerned with wire heating resulting in power loss. At 12.67A at peak sun, it is not a concern with running 10AWG in a single string.”’’’’
‘’’Vmp of my panels 41.84V. Imp is 12.67A. 8S comes to Vmp of 335V.“
~4241 watts
According to their specs you are GOLDEN. You got 2 EG4 mppt ~ $800.00 FOR much less then Victron 450/100. ~$1230.00. ~$430 savings goes long ways towards wire. Look at that victron. Think Victron recommend battery 2awg wire….for that one. Victron Recommended Fuse ~ 125 - ~150amp …..cross section is wire concern with dc.
Interesting
Interesting.
…. My PV for 100ft run of red and 100ft run of black was around ~$115 total. Understand you on the conduit ….
Thanks
Last edited:
Zwy
Emperor Of Solar
With the EG4 MPPT or the 3K AIO, it really isn't a problem concerning max amperage if the string has a VOC close to max with temp coefficient factored in. I'm running 4.2Kw of panels per string, it fits really well with the EG4 MPPT. I'm running slightly larger mono panels, with bifacial panels it could get close to max input but I have seen as high as 4.7Kw from each string with some cloud edge effect.
I'm not sure on over paneling the MPPT's. I never tried and these work very well for my application. Over paneled with cloud edge effect could be a little risky, I'll let someone else try it.
Interesting on the Victron float voltage setting and the string voltage maximum.
I'm not sure on over paneling the MPPT's. I never tried and these work very well for my application. Over paneled with cloud edge effect could be a little risky, I'll let someone else try it.
Interesting on the Victron float voltage setting and the string voltage maximum.
Last edited:
I suppose it depends on who you ask, but when I started using ferrules the guideline was to have the wire sticking out of the ferrule a small amount.
My reference for this was a White Paper by Weidmuller in PDF format. I don't recall where I found it but I have a local copy. This web page on their site says the same thing. See the "Do's and Don'ts" section.
Crimp it - don't crush it
Reliable crimping tools that let you connect wire-end ferrules and contacts in a flash
www.weidmuller.com
Zwy
Emperor Of Solar
Signature Solare sent out a replacement unit last week on Thursday, it arrived Monday and I finally found an hour today after hitting full charge early this morning to install it.
I did a followup video, I did find some interesting things regarding the connections at the IMO.
I did a followup video, I did find some interesting things regarding the connections at the IMO.
Zwy
Emperor Of Solar
Now that you know what the substance was on the wires in the IMO, do you still think there was a wire heating problem?
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