answersLogoWhite

0


Best Answer

Yes. The rating of a relay is how much current it can switch on and off, not how much it uses or must have.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Will a relay with a 40 amp rating function properly in a circuit with a 30 amp fuse?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

Why does the 59n relay keep tripping the breaker?

The 59 relay is an overvoltage relay. The 59N relay is an overvoltage relay for the neutral circuit. Check neutral and make sure the system is properly balanced.


How do you control 110 volt circulator pump with a 24 volt thermostat?

You will need an interpose relay. This relay will have a 24 volt coil. The circuit power for the relay will come from a 120VAC to 24VAC volt transformer. The 24 VAC circuit will have the thermostat in series with the coil of the relay. Thermostat calls for heat, the coil energizes and the relay's contacts close. Your circulator pump is controlled by the relay. On selecting the relay make sure that the contact ratings can handle the full load amps of the circulator. A contact rating of 120 volts at 15 amps will do very nicely.


Parking lights will not turn off is it a relay or circuit breaker?

It is a relay or switch problem. A circuit breaker or fuse won't keep a light on.


What happens when a relay is operated beyond its rated voltage or current?

Generally speaking, a relay is an electrically operated switch. As such, there are two sets of ratings associated with a relay. The operating voltage will be specified, and the ratings of the contacts are also set down. As regards exceeding the operating voltage, this will cause excessive current to flow in the relay when it is energized. If the voltage is not significantly higher than the rating, and if the relay is not operated often or for long, it will function normally, but probably with a shorter life. At some point, excessive operating voltage will cause the coil in the relay to fail. Operating a relay to energize an electrical circuit with a higher voltage or current than the relay is designed for will shorten the life of the contacts in the relay. Higher voltage and current will quickly burn the contacts and destroy them. This is particularly true if that voltage or current is significantly higher than the ratings set by those who designed and constructed the relay. Things might work for a short time, but not for long.


What is the current rating for a 48 VDC contact relay?

The current ratings of the contacts of a relay are written on the side of the protective envelope that covers the contacts.

Related questions

What is the function of an LBB relay?

A local breaker backup relay is used to check the operation of distribution circuit breakers and to trip the feeder circuit breaker if the distribution circuit breaker fails to trip on an overload.


Why does the 59n relay keep tripping the breaker?

The 59 relay is an overvoltage relay. The 59N relay is an overvoltage relay for the neutral circuit. Check neutral and make sure the system is properly balanced.


How an electrical relay works?

A relay will have a control circuit and a function circuitcould be the same feed line. One set of terminals (Hot and Load) can be activated at all times, but will not function until the control circuit is closed. The control circuit has a Hot and a Ground--when activated either by supply hot or ground by switch. The internal coil closes allowing the function circuit to operate. The purpose of this relay is to reduce the spike to the alternator. It takes less current (voltage) to close the coil on the relay than it would to operate the accessory that it controls


How do you find out what the bottom 3 fusses do on the kick plate of a 94 Toyota pick up?

one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay


What is an egi relay?

An EGI relay is the electronic gas injection relay in the fuel pump of an automobile. This device must function in order for a car to run properly.


What is the function of the pla relay?

Plogrammable logic array is the set of instructions which makes and breaks the circuit.


What is an egi?

An EGI relay is the electronic gas injection relay in the fuel pump of an automobile. This device must function in order for a car to run properly.


Internal circuit of an electrical relay?

basic circuit of electrical protective relay


What is function of static relay?

function of static relay


What is the function of static relay?

function of static relay


What is the typical rating of a hot wire relay contacts?

The typical rating of a hot wire relay contacts is 35 amp


What is an electric circuit that controls another electric circuit through a relay?

Remote-Control Circuit. Any electrical circuit that controlsany other circuit through a relay or an equivalent device.