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Solax inveter tripping MCB
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<blockquote data-quote="tomcoleman" data-source="post: 542327" data-attributes="member: 36397"><p>i currently charge my Solax batteries at night time on the cheaper tarrif.</p><p></p><p>almost every night the MCB breaker tripps thats connected to the solar.</p><p></p><p>I can see from the logs the batteries start sucking power from the grid and ramp up over the period of a hour and get upto 7.1kw charging at which point the MCB tripps and charging stops.</p><p></p><p>The batteries/inverter/breaker it is connected to is a Live Electrical CA132B 32 Amp Single Pole Type B 6kA 230V Miniature Circuit Breaker MCB (i see this is rated at 32amp and 6000w)</p><p></p><p>Now i presume becuase the sucking power from the grid to charge the batteries its bursting to over 7kw this causes the fuse to "trip"? ?</p><p></p><p>i was thinking of replacing the MCB with the same size AMP but rated at 10kA</p><p></p><p>Schneider Electric SE10B132 MCB SP B 32A 10kA</p><p></p><p></p><p>or upgrade the cable from 4mm to 8-10mm with a 40/50AMP</p><p></p><p></p><p>Schneider Electric SE10B140 MCB SP B 40A 10kA</p><p>Schneider Electric SE10B150 MCB SP B 50A 10kA</p></blockquote><p></p>
[QUOTE="tomcoleman, post: 542327, member: 36397"] i currently charge my Solax batteries at night time on the cheaper tarrif. almost every night the MCB breaker tripps thats connected to the solar. I can see from the logs the batteries start sucking power from the grid and ramp up over the period of a hour and get upto 7.1kw charging at which point the MCB tripps and charging stops. The batteries/inverter/breaker it is connected to is a Live Electrical CA132B 32 Amp Single Pole Type B 6kA 230V Miniature Circuit Breaker MCB (i see this is rated at 32amp and 6000w) Now i presume becuase the sucking power from the grid to charge the batteries its bursting to over 7kw this causes the fuse to "trip"? ? i was thinking of replacing the MCB with the same size AMP but rated at 10kA Schneider Electric SE10B132 MCB SP B 32A 10kA or upgrade the cable from 4mm to 8-10mm with a 40/50AMP Schneider Electric SE10B140 MCB SP B 40A 10kA Schneider Electric SE10B150 MCB SP B 50A 10kA [/QUOTE]
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