Selective overcurrent circuit breaker ETIMAT SM 3p E25 002129222

Selective overcurrent circuit breaker ETIMAT SM – protection and reliability of installations. The ETIMAT SM selective overcurrent circuit breaker is an electrical protection device designed for mounting on a DIN rail. The device with a rated current of 25A and a voltage of 400V is characterized by high efficiency in protecting circuits against overloads and short circuits. Its selectivity allows for precise disconnection of the damaged part of the installation, minimizing the risk of failure of the entire system. Made of high-quality materials, it ensures long-lasting and trouble-free operation.

Construction and characteristic features

The ETIMAT SM circuit breaker has been designed with ease of installation and use in mind. Thanks to its compact size (1.5 modules per pole), it is ideal even in crowded switchboards. The "E" tripping characteristic provides a quick response to short-term current surges, while allowing for the safe starting of devices with motors – which generate high starting current. The rated switching capacity of 25kA guarantees effective circuit interruption in the event of a short circuit. In addition, the circuit breaker has an IP20 degree of protection, which provides basic protection against touch and contamination.

• Selectivity: Ensures precise disconnection of the damaged circuit without disconnecting the entire installation.
• Characteristic E: Ideal for protecting circuits with devices with high starting current (e.g. motors).
• Possibility of sealing: Levers in the "On" and "Off" positions – increases safety and prevents unauthorized changes to the circuit breaker status.
• Additional functionalities: Possibility of mounting auxiliary contacts, overcurrent and undervoltage releases – expands the functionality of the device adapting it to the specific needs of the installation.
• Contact position indicator: Facilitates quick identification of the circuit breaker status (ON/OFF).
• ON/OFF marking: Clear marking on the switching lever makes operation easier.
• Possibility of circuit labeling: Allows easy identification of the protected circuit.
• Power supply from above or below: Increases installation flexibility in various switchboard configurations.

Application and compliance with standards

The ETIMAT SM circuit breaker finds application in a wide range of electrical installations – both in residential, commercial and industrial buildings. It is particularly recommended for protecting lighting circuits, socket circuits and power lines for electrical devices with high starting current. It meets the requirements of DIN VDE 0641-21 and has a pollution degree of 3, which guarantees its reliable operation in various environmental conditions. The rated insulation voltage Ui is 690V AC, and the overvoltage category IV provides resistance to disturbances in the electrical network.