Miniature circuit breaker 240V 14kA, 3-pole, D, 4A, T=70mm according to UL 489 The miniature circuit breaker is the automatic circuit breaker for short-circuit protection. The miniature circuit breakers from Siemens, as an important component of the SENTRON protection components for electrical installations, offer effective protection for people and systems by safely switching off in the event of overload and short circuit. Convenient installation and connection technology, uniform additional components and a consistent design - these are the characteristics of the device family. Whether for infrastructure or industrial requirements, Siemens offers miniature circuit breakers for all applications and every area of use. The Siemens miniature circuit breakers are characterized above all by: 1. Effective protection for people, investments and systems against overload and short circuit. 2. A wide range of uniform accessories that are easy to install and can be replaced at any time. 3. Reliable safety during installation thanks to the reach-around and contact protection included as standard. 4. Clearly visible switch position display. 5. Data matrix code on the front of the device provides quick and easy information about the circuit breaker. 6. Protection in accordance with standards with worldwide approvals.
| Property | Value |
| Rated current: | 4 A |
| Rated voltage: | 400 V |
| Type of voltage: | AC/DC |
| Width in pitch units: | 3 |
| Number of poles (total): | 3 |
| Additional equipment possible: | yes |
| Overvoltage category: | 3 |
| Installation depth: | 70 mm |
| Rated switching capacity Icn according to EN 60898 at 230 V: | 10 kA |
| Rated switching capacity Icu according to IEC 60947-2 at 230 V: | 15 kA |
| Rated switching capacity Icu according to IEC 60947-2 at 400 V: | 15 kA |
| Rated switching capacity Icn according to EN 60898 at 400 V: | 10 kA |
| Pollution degree: | 3 |
| Switching neutral conductor: | no |
| Rated insulation voltage Ui: | 440 V |
| Ambient temperature during operation: | -25 to 55 °C |
