For example, use 12# or 4.0mm 2 wire for up to 12kW, three phase 415V – 480V where the max current is 18.2A. In case of three phase spa wiring, use 12 or 10 gauge wire size for each line.
At last, the ground wire from ground busbar has been connected to the ground terminal in SPA control box. the middle terminal is Neutral and the first and last one is two lines i.e. Two Lines from main distribution board MCB as L 1 and L 2 (Single Phase 240V) has been connected to the input of GFCI.Īs shown in the fig, the three output terminals has been connected to the SPA control box followed by the printed marking i.e. As mentioned above, the builtin white wire has been connected to the neutral busbar in the main DB. The following wiring shows hot water tub spa or whirlpool spa has been wired and protected through a three pole GFCI circuit breaker.Īs we know that in 240V, there is no need to connect the neutral, but in some cases the appliances should be connected to the neutral according to the needs provided by the manufactures and user manuals. Wiring a Three Poles GFCI Circuit Breaker
3 pole 15 amp breaker how to#
Related Post: How to Wire GFCI Combo Switch and Outlet – GFCI Switch/Outlet Wiring Diagrams.Additional, you may read the difference between GFCI and AFCI in the previous post. Keep in mind that the the difference between single pole and two poles normal circuit breakers and a GFCI is that there is a builtin white wire on the back side of GFCI and it must be connected to the neutral busbar in the mains supply or it will not work and protect the circuit properly. Now, you have got the idea as we are going to show different wiring circuit diagrams for single pole, two poles, three poles and four poles (both single phase and three phase) RCD (RCCB) or GFCI circuit breakers.
3 pole 15 amp breaker install#
According to IEC and NEC, it is must to use and install these devices in watery areas like laundry, kitchen, spa, bathroom and other outdoor installation. GFCIs and RCDs are used to protect against electric shock in case of ground faults and leakage currents and trip the circuit.
RCD may be defined as Current Operated ELCB which is known as RCCB.ĮLCB stands for “ Earth Leakage Circuit Breaker” and it has been replaced with the latest RCD device due to some of ELCB disadvantages (as it works on proper earth connection). RCD + MCB, then it is known as RCBO “ Residual Current Circuit Breaker with Overcurrent Protection“. In Europe and Australia, the same thing is known as RCD “Residual Current Interrupter” or RCCB “ Residual Current Circuit Breaker” or if overcurrent protection device such as MCB is used with combination of RCD i.e. In America, it is commonly known as GFCI “ Ground Fault Circuit Interrupter” or “ GFI “ Ground Fault Interrupter” or ALCI “ Appliance Leakage Current Interrupter“. RCCB is also known as “ Residual Current Circuit Breaker“.RCD is the short form of “ Residual Current Device“.
0 kommentar(er)
