Automatic switch ETIMAT10 3P B 20A 10kA AC - 002125717.

The circuit breaker is one of the fundamental and commonly used devices for protective automation, employed to limit the impacts arising from short circuits and overloads in the electrical installation. A current flow that is significantly higher than the nominal current of the circuit breaker causes it to trip and disconnect the electrical circuit. This type of action aims to protect devices and installations from damage, as well as to safeguard individuals from electric shock and fire.

Due to its parameters, it is most often used in residential building electrical installations to protect lighting circuits, sockets, and controls.

The design of the switches allows for the installation of additional equipment, such as auxiliary contacts, which enable remote indication of the device's operation. The device can also be equipped with remote tripping releases, which open the circuit breaker contacts remotely when voltage appears, or low-voltage releases, which activate the circuit breaker in case of a voltage drop relative to the nominal value.

Circuit breakers are mounted on a TH-35 mounting rail. The short-circuit breaking capacity of this circuit breaker is 10 kA.

• Number of poles: 3p
• Nominal current IN: 20 A
• Nominal short-circuit capacity: 10 kA
• Nominal voltage UN: 230/400 V 50 Hz, maximum 60 V DC
• Nominal insulation voltage Ui: 500 V for normal conditions
• Maximum operating voltage Umax: 440 V AC
• Minimum operating voltage Umin: 12 V AC
• Energy limitation category: 3
• Cable connection: 1 - 25 mm², (maximum 3 Nm)
• Housing: non-flammable, temperature-resistant material, grey RAL 7035
• Installation: on TH35 rail
• Working position: any position
• Sealing: ON-OFF
• Operating temperature: from -25°C to +50°C
• Protection level: IP20