What does a shunt trip do?

The shunt trip is an optional accessory for a circuit breaker for added protection to your system. It is designed to connect to a secondary sensor. It will trip the breaker automatically if the sensor is triggered. It can also be activated via a remote switch that you can install.

What is a shunt resistor?

Definition Shunt Resistor A shunt resistor is used to measure electric current, alternating or direct. This is done by measuring the voltage drop across the resistor.

What is shunt trip wiring?

A shunt trip device is an optional accessory in a circuit breaker that mechanically trips the breaker when power is applied to the shunt trip terminals. The power for the shunt trip does not come from within the breaker, so it must be supplied from an external source.

Where are shunt trip breakers required?

Therefore, automatic gas shut off valve or a shunt trip breaker is required for cooking equipment that are protected by hood fire suppression system. If the heat source is electrical, a shunt trip breaker is required to automatically disconnect the cooking equipment when the fire suppression system is activated.

What is shunt relay?

a relay which is energized by the current derived from a shunt in a main circuit.

Is shunt a resistance?

In electronics, a shunt is a device that creates a low-resistance path for electric current, to allow it to pass around another point in the circuit. The origin of the term is in the verb ‘to shunt’ meaning to turn away or follow a different path.

Why is shunt connected in parallel?

A shunt resistance is connected in parallel to the galvanometer so as to keep the resistance low. Such low resistance galvanometer is used in series with the circuit to measure the strength of current through the circuit.

What is the purpose of shunt trip coil in ACB?

A “shunt trip” coil is installed in a circuit breaker to provide remote trip of the breaker but “undervoltage” or “no voltage” coil is installed to provide automatic tripping when loss of power occurs or when there is a major voltage dip.