Used But Good Condition. Crabtree Loadstar Range MCB. Early Style Series 2 Approx – Crabtree Loadstar MCB 20 Amp Single Pole Breaker Type B 20A . Product Description. Crabtree Loadstar 6HS16C C Type 16A Single Pole Mcb. 6HS16C is a 16A out going MCB for Crabtree Loadstar commerial/industrial. Product Description. Crabtree Loadstar 6HS16B B Type 16A Single Pole Mcb. 6HS16B is a 16A out going MCB for Crabtree Loadstar commerial/industrial.

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It should be possible to lift it off the busbar without undoing all of the mcbs to drop it.

Alun TomApr 25, Today checked again and this time mcb did not trip rcd when switched back on. I will now get an expert in and see what can be found. Again thank you all for your help.

Do you already have an account? You should find water problems in at least one of them. Not likely to be mcb at fault. You must log in or sign up to reply here. cfabtree

I am still intrigued as to why it is knocking off the RCB as absolutely nothing has touched the cable and the run carbtree the cu to the the adjoining shed is all indoors. Unusual for an MCB to fail, are you sure its not overloaded.

Crabtree 6HS16C Loadstar 16A MCB

The circuit is just one twin and earth going directly from mcb to a twin 13a socket which has now been disconnected! I now need to replace a suspect mcb Looking at the photographs of the cu can you tell me if I need to undo the bottom screw of every mcb in that sector to take off the copper neutral bus bar before I can take out the suspect mcb by pulling down the back release poadstar on the mcb etc. Loadwtar are this Peter p There is a dedicated mcb for the garden The circuit was installed from new some 5 years ago.


This is after I toggled mcb switch a cgabtree times! Maybe the MCB has another circuit connected to it.

Crabtree Loadstar MCB 10 Amp Single Pole Breaker Type B 10A 6FS10B Series 1

RCDs will also trip if too much current returns via the Neutral, something associated with shared neutrals. The mcb will not move Clip pulled down but no movement on this mcb or on other individual mcb if trying individually to remove even with bus bar screw released. Alun Tom likes this. BazzaApr 26, Perhaps the UV got to it? The screw is already loose. Alun Tom and unphased like this.

Switched off mcb for garden and switch on rcd all ok until mcb switched back on again! You would spend more lucrative time just visually inspecting all your garden stuff. And don’t forget that just switching off the MCB does not fully isolate the circuit. Switch crabtres circuit off, and inspect all the termination points at the different accessory positions.

  BS 5234-2 PDF

,oadstar I think I was barking up the wrong tree with my mcb hard fault! Its not, JP, they have special shrouded busbars and a single tab lock-in system unique to the Starbreaker. ooadstar

Agree it won’t is highly unlikely! Now only the 2. Thanks peter but no. As other poster said that aint the neutral bar it is the LIVE busbar. Does not see daylight! Yes odd I know!

The ends of the supply wire temporarily terminated by a choc box connector At present still tripping in that state but yesterday when reconnected to the socket worked for approximately 6 hours without tripping anything then mid evening Rcd still tripped immediately whenever mcb was switched on.

Thought it was the pump. Disconnected both sockets from junction box. It is a Loadstar. RCD trip due to there being a difference in the current going out through the live and the current returning through the Neutral. It probably easier if you take the bus bar out but when you put it back make sure none of the clamps miss the prong and just tighten up on themselves. Yes, my password is: Yes my fault re polarity of bus bar!!