How many lamps per circuit

Still, this depends on what type of bulb you are trying to use. For other light wattages, simply divide the maximum continuous load of a amp breaker, which is watts, to the designated amount of watts written on the light fixture. For example:. On the other hand, CFL or LED bulbs are one of the most power-saving lights you can have that give off the same brightness as an incandescent bulb with watts.

Thus, your amp breaker can carry of this kind. Putting light fixtures on a amp breaker is completely fine, according to the regulations of NEC. You can still wire multiple lights on one circuit in a heavy-consuming area of the house, but with stricter conditions.

Anyway, light installation to other places in the house like the garage, bathroom, and bedrooms is the same. Avoid the circuits with a device dedicated to it e. You can distribute lights around the house as much as you want.

On the other hand, circuits connected to your breaker are also significant for your breaker maintenance, especially when planning for your lights. Remember that these lights will be on the same circuit as other outlets for electrical devices, so be cautious when attaching appliances simultaneously with your lights. Hi all, I want to know how many lights you can put on to 1 lighting circuit?

The circuit is wired using 1. Whatever number of lights total 6A or less, or W. If the lights are 7W LEDs, then a couple of hundred. If they are illegal W outside floodlights, then only two. Unlimited other combinations of lighting are available.

There are also other considerations such as what area these lights are covering, and whether it is appropriate to have them all on a single circuit. Hi thanks for that, W lights are illegal?

I had the house rewired a few years back and I remember the electrician used 1. As already stated W is the maximum wattage for outside lights without planning permission and since most ceiling roses which double as junction boxes are rated 5 or 6 amp in most homes a 6A MCB is the largest that can be used based on W per lamp that equates to 12 lamps per circuit.

Back in the real world today a 5 lamp chandelier with 11W CFU's is still only 55W and even a kitchen florescent is likely only 60W so reasonable safe to consider 60W per lamp rather than W which means 23 lamps per circuit is quite reasonable. However because lights in bathrooms are now RCD protected and cables buried in walls and ceilings under 50mm below surface also require RCD protection plus lamps blowing can cause ionisation within the lamp taking out the 6A MCB it is now normal to have at least two lighting circuits independently protected or emergency lights to comply with.

This 6A thing could be argued till the cows come home. Sockets are effectively used as junction boxes on circuits and they have a face value rating of 13A, yet the CPD is anything up to 32A. Roses on lighting circuits are the same, surely? You could have a 6A rose on a 10A breaker without contravening the regs? With regard to your original point - I think there is a valid argument for a change in the guidance And the diversity calculations as W lamps have been phased out and a point design might be entirely reasonable for a modern house.

Look outside the box; n the event of a short circuit the magnetic portion of the MCB will operate the circuit breaker in In In the event of a continuous overload the thermal portion of the MCB will operate in the times given by the manufacturer 1.

So after a period of the time 2 hours, 1 hour, 30s who knows the overload will increase to 1. If you design your 6A circuit to run on a load of 7A then this is bad design and the likelihood of nuisance tripping is there its takes very little current to throw the MCB over the edge.

So continuous load of 7A is an overload, after 1. I am not saying you are advocating designing a load for 7A and putting it on 6A breaker, what I am doing is questioning your theory behind the statement "The tripping time for a 6A breaker even under a 7A load is NEVER ", when the manufacturer says different. The fusing current is 1. New here? To participate in discussions, please log in and introduce yourself. Electrical Calibration and Maintenance Operator. Electrical Inspector.

Skilled Electrical Fitter. Latest News: Private messages, your photo, profiles, email notifications. Linear : Threading : Single : Branch. Search Topic Keyword. View similar topics. Print this topic. Solution to what? If you are under the limit then you are under the limit.

Better installation method is to wire to jb's and locally spur each downlight Throwing away supplied terminal blocks while you are at it. The tripping time for a 6A breaker even under a 7A load is NEVER, so I'm not sure it warranted a code 3 in the first place - if the customer really cares then Zs permitting change it to a 10A.

You should ask your customer that. If anyone started trying to cover my house with little sticky labels, they would be surprised how quickly they were heading for the front door.