Emax 2 Series Air Circuit Breaker
The Emax 2 series air circuit breakers cover the full spectrum of power distribution needs with a frame rating of up to 6300A, evolving from traditional protective devices into comprehensive energy management platforms that integrate protection, measurement, control, and communication. Their unique energy control capabilities enable active load management and peak-shaving/valley-filling, significantly reducing electricity costs, while a compact design saves up to 20% of switchgear space. Equipped with Ekip Touch smart touch-screen trip units and supporting a wide range of industrial communication protocols, they enable full-lifecycle digital management—from local operations and maintenance to cloud connectivity.
Overview of Key Parameter Comparisons
| Comparison Dimensions | EMAX 2 (currently the top recommendation) |
| Product Model | E1.2, E2.2, E4.2, E6.2 |
| Frame current (Iu) | Maximum 6300A (E6.2) |
| Rated voltage (Ui) | Maximum 1000V |
| Division ability (ICU) | More powerful , up to 200kA (E6.2 @ 440V) |
| Short-term tolerance (Icw) | Higher , up to 120kA/1s (E6.2) |
| Trip unit type |
Ekip DIP (Dial Switch) , Ekip Touch (Touchscreen with Measurement/Communication), Ekip Hi-Touch (Enhanced Touchscreen) |
| Protection function | LI, LSI, LSIG, etc. |
| Smart functions | Supports : Power Controller, Power Quality Analysis, Cloud Module, IEC 61850 Communication Protocol |
| External dimensions |
More compact: • E1.2 (210mm wide) • E4.2 (384mm wide) |
Explanation of “Breaking Capacity Class”: ABB uses letters to represent different breaking capacity classes, such as B (42kA), N (66kA), S (85kA), H (100kA), V (150kA), etc. For example, E2.2N represents a circuit breaker with an E2.2 frame and a breaking capacity of 66kA (N class).
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