Mrbf Terminal Fuse instead of Class T
- Thread starter railcon56
- Start date
John Frum
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- Nov 30, 2019
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Do you mean MRBF=marine rated battery fuse?
What is the amp hour rating for the batteries?
What is the battery chemistry?
300 ah MRBF on terminal fuses.
https://www.amazon.com/gp/product/B0019ZBTV4/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
MRBF Terminal Fuse, 300 Amp
1 on each Battery.
John Frum
Tell me your problems
- Joined
- Nov 30, 2019
- Messages
- 15,234
Fuses are rated in amps not amp hours.
I bought my same style fuse from baymarine, they were very good to deal with, and when a couple items were missing on arrival they promptly sent those items at their shipping cost.
baymarinesupply.com
Bussmann MRBF Terminal Fuse Block
Bussmann MRBF Fuse Holders - Select your version above! Convenient MRBF fuse block places your MRBF fuse right at the battery where it need to be for maximum circuit protection!
baymarinesupply.com
You asked what the Amp hour rating of the batteries were.
Yeah I ordered 4 and 2 spares.I bought my same style fuse from baymarine, they were very good to deal with, and when a couple items were missing on arrival they promptly sent those items at their shipping cost.
Bussmann MRBF Terminal Fuse Block
Bussmann MRBF Fuse Holders - Select your version above! Convenient MRBF fuse block places your MRBF fuse right at the battery where it need to be for maximum circuit protection!
Your punctuation left a lot up to the reader to interpret.
Is that 300 Ah for each battery or 300 Ah in total (75 Ah each battery)?
The Class T fuse size depends on how much you're going to draw from the battery bank. At first blush, 200 amp seems undersized.
The Bms rating is 150 amp for each battery. 200 for the circuit breakers is enough.. at least I hope so.
4x separate bms . JBD 150 amp... 4/0 wire
@railcon56, your description of your system is all over the place. I'm not sure what the heck you have. To ensure you're getting the best advice, I strongly suggest you step back and create a system diagram.
I'll have 4 300ah batteries each one will have a 150 amp BMS
300 amp Terminal fuses on each battery
going into a blue sea 200 amp Circuit breaker on each Battery 4/0 cable
then into the Battery Combiner (Victron Power IN)
400 amp mega fuse in Victron Power Distributor.
300 amp Terminal fuses on each battery
going into a blue sea 200 amp Circuit breaker on each Battery 4/0 cable
then into the Battery Combiner (Victron Power IN)
400 amp mega fuse in Victron Power Distributor.
Diagram please. You know what you have in mind, but we don't. I would rather not try to read into what you wrote. Include the rest of the system. Inverter, chargers, other loads, etc.
