SR3000 2SR40700 Medium solid state circuit breaker
The SR3000 2SR40700 is a medium-size solid-state circuit breaker manufactured by RELIANCE. Suitable for power plants, substations, industrial enterprises, commercial buildings and other power system sites, renowned for its reliability, performance and functionality.
Regarding its function, it can be summarized as follows:
Protection function:
Overload protection: When the current exceeds the set value, the circuit breaker will automatically disconnect the circuit to prevent equipment overload.
Short circuit protection: When there is a short circuit in the circuit, the circuit breaker will quickly cut off the current to avoid equipment damage or fire and other dangers.
Ground fault protection: Monitors ground faults in the circuit and disconnects the circuit when a fault is detected.
Overvoltage protection: When the voltage exceeds the set value, the circuit breaker will cut the circuit to protect the device.
Undervoltage protection: When the voltage is below the set value, the circuit will also be cut off.
Control function:
Switching operation: The circuit breaker can be operated manually or remotely.
Remote control: Supports remote control and operation through external signals or systems.
Interlock protection: Interlock protection with other devices or systems to ensure the overall security of the system.
Monitoring function:
Circuit breaker status monitoring: real-time monitoring of the circuit breaker switching status to ensure the normal operation of the system.
Current monitoring: real-time monitoring of the current in the circuit to ensure that the current is within the safe range.
Voltage monitoring: Monitor the voltage value in the circuit to provide data support for the stable operation of the system.
Fault diagnosis:
Circuit breaker fault analysis: Automatically analyzes the fault of the circuit breaker to help users quickly locate the problem.
Fault alarm: When a fault is detected, the circuit breaker will issue an alarm signal to remind the user to deal with it in time. 
In addition, the SR3000 2SR40700 solid state circuit breaker also has the following technical parameters:
Rated voltage: 400V
Rated current: 3000A
Short circuit current: 40kA
Break time: 0.05s
Mechanical life: 20000 times
Electrical life: 10000 times
Applicable environment: -25 to 55℃, relative humidity ≤95% 
