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A circuit breaker can be overloaded which will cause it to trip. An overcurrent condition causes this.

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โˆ™ 2012-11-09 18:19:23
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Q: What is the difference between over load and circuit breaker?
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What is the difference between single pole mcb and double pole mcb?

A single pole circuit breaker can protect one hot wire to a given load where as a two pole circuit breaker can protect two hot wires to a given load. In the North American system this would equate to 120 volts on a single pole circuit breaker and 240 volts on a two pole circuit breaker.


What is the difference between a circuit breaker and a contactor?

A circuit breaker is a protective device that interrupts current flow in a fault condition. It is not intended for routine use to turn the load on and offA contactor is a controlling device that turns the current flow on and off to a load. It is not intended for use as the protective device.


What is the different between circuit breaker and switch-disconnectors?

The circuit breaker preforms three functions where as a switch disconnect preforms one. A breaker will automatically disconnect the load if a short circuit fault occurs or if there is an overload condition on the conductor caused by the load. The third function is that a breaker can be used as a manually disconnect to isolate the load. Where as a switch's only function is to just isolate the load from the supply system.


What is standard breaking capacity of circuit breaker?

There isn't a 'standard' breaking capacity for circuit breakers. It varies according to the load supplied by the circuit breaker and the calculated overcurrent for that load.


Difference between circuit breaker and relay?

A relay senses a condition (voltage, flow, amperage, pressure, level, etc.) and allows component actuations (circuit breaker operation, pump start, valve open/close, etc.) to occur. It is part of the control circuitry for a component. A circuit breaker interrupts electrical current flow by opening a circuit under load conditions. Both can provide component protection, but only a circuit breaker directly protects components. A relay could actuate a circuit breaker to provide protection.

Related questions

What is the difference between an MV circuit breaker and an MV contactor?

a circuit breaker is an "On Load" device while a contactor is an "Off Load" device.


What is the difference between isolatar and circuit breaker?

Circuit breakers are overcurrent protective devices, so must be capable of interrupting a fault current, and closing onto a fault, without damage to the circuit breaker. Circuit breakers are also used to interrupt load currents. Isolators are generally designed to disconnect circuits on 'no load' -that is when there is no current is flowing through the circuit; their function is simply to provided a physical break between the load and the supply once the circuit has been interrupted by a load-breaking device such as a circuit breaker.


What is the difference between single pole mcb and double pole mcb?

A single pole circuit breaker can protect one hot wire to a given load where as a two pole circuit breaker can protect two hot wires to a given load. In the North American system this would equate to 120 volts on a single pole circuit breaker and 240 volts on a two pole circuit breaker.


What is the difference between Draw-out and Fixed-air circuit breaker?

A drawout breaker has two parts (base and breaker). The base is wired to the load frame and bolted in. The breaker slides in and out of the base, and connects physically and electrically to the base (so it's easy to rack out for maintenance). A fixed mounted circuit breaker is bolted directly to the enclosure and wired to the load frame.


What is the difference between a run and a circuit?

run in a electrical system means a wiring & conduit runs coming from Panel Board Circuit Breaker to its branch circuit loads in a circuit. while circuit is a designated number of branch breaker in a panel board where power load was individual connected.


What is the difference between a circuit breaker and a contactor?

A circuit breaker is a protective device that interrupts current flow in a fault condition. It is not intended for routine use to turn the load on and offA contactor is a controlling device that turns the current flow on and off to a load. It is not intended for use as the protective device.


What is the difference between a fused isolator and a circuit breaker?

Isolators are non-load breaking devices -in other words, they are not designed to break or make (close onto) load currents. They are normally opened after the circuit has been disconnected by a load-breaking device, such as a circuit breaker, and closed before the circuit is re-energised. Circuit breakers, on the other hand, are designed not only to make/break load currents, but also to make/break fault currents.


What is the different between circuit breaker and switch-disconnectors?

The circuit breaker preforms three functions where as a switch disconnect preforms one. A breaker will automatically disconnect the load if a short circuit fault occurs or if there is an overload condition on the conductor caused by the load. The third function is that a breaker can be used as a manually disconnect to isolate the load. Where as a switch's only function is to just isolate the load from the supply system.


What is the difference between a circuit breaker and a surge protector?

A circuit breaker is a device that disconnects the power if the load current exceeds a set value. A surge protector is a device that prevent power transients from entering delicate equipment that could be damaged by the transient.


A fuse or circuit breaker used in a circuit is usually inserted in?

A fuse or circuit breaker used in a circuit is usually inserted in series with the load.


What is standard breaking capacity of circuit breaker?

There isn't a 'standard' breaking capacity for circuit breakers. It varies according to the load supplied by the circuit breaker and the calculated overcurrent for that load.


What is the difference between a circuit braker and a relay?

A circuit breaker when energized will latch and stay in that position until the load is reduced and manually reset. a relay will change state continuously if the source continuously changes

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