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ABB Emax series air circuit breakers, low-voltage terminal power distribution products

ABB Emax series air circuit breakers, low-voltage terminal power distribution products

As the flagship product in ABB’s low-voltage power distribution portfolio, the Emax series of air circuit breakers has undergone continuous evolution. Thanks to comprehensive, reliable electrical performance, an ultra-compact design, and ongoing advancements—ranging from traditional distribution protection to intelligent energy management—the series delivers core solutions that combine high safety with exceptional efficiency across a wide spectrum of sectors, including industrial manufacturing, critical infrastructure, and renewable energy.
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Product Details

📊 Overview of Key Parameter Comparisons:

Comparison Dimensions Emax (Classic Series)
Product Model X1, E1, E2, E3, E4, E6
Frame current (Iu) Maximum 6300A (E6)
Rated voltage (Ui) Maximum 1000V
Division ability (ICU) Up to 150kA (E6 V class)
Short-term tolerance (Icw) Maximum 100kA/1s (E6)
Trip unit type PR111/P, PR112/P, PR113/P, PR121/P, PR122/P, PR123/P
Protection function LI, LSI, LSIG, etc.
Smart functions Weak , basically lacking these functions
External dimensions Relatively large:
E1 (approximately 300mm wide)
E4 (approximately 576mm 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).

 

Emax Classic Series
Model Rated current range (Iu) Disruption capacity Icu (440V, kA)
E1 400 ~ 1600A ≤85
E2 800 ~ 2000A ≤100
E3 1250 ~ 3200A ≤150
E4 3200 ~ 4000A ≤150
E6 3200 ~ 6300A ≤150

 

Model
E1B800 E1N800 E1S800 E3H1250 E4V3200
E1B1000 E1N1000 E1S1000 E3H1600 E4V4000
E1B1250 E1N1250 E1S1250 E3H2000 E6V4000
E1B1600 E1N1600 E2S1250 E3H2500 E6V5000
E2B1600 E2N1250 E2S1600 E3H3200 E6V6300
E2B2000 E2N1600 E2S2000 E4H3200  
  E2N2000 E3S1250 E4H4000  
  E3N2500 E3S1600 E6H4000  
  E3N3200 E3S2000 E6H5000  
    E3S2500 E6H6300  
    E3S3200    
    E4S4000    

 

Protection unit
PR121/P-LI PR122/P-LI PR123/P-LSI
PR121/P-LSI PR122/P-LSI PR123/P-LSIG
PR121/P-LSIG PR122/P-LSIG  

Dimensions - E1-E6
Fixed Circuit Breaker

Dimensions - E1-E6

 
Dimensions - E1-E6

Fixed Circuit Breaker

Dimensions - E1-E6

 

Applicable Scenarios:

Oil Gas/Mining Manufacturing/HeavyIndustry Infrastructure/Transportation Power/New Energy
Oil Gas/Mining Manufacturing/HeavyIndustry Infrastructure/Transportation Power/New Energy

 

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ABB Emax series air circuit breakers, low-voltage terminal power distribution products

ABB Emax series air circuit breakers, low-voltage terminal power distribution products

As the flagship product in ABB’s low-voltage power distribution portfolio, the Emax series of air circuit breakers has undergone continuous evolution. Thanks to comprehensive, reliable electrical performance, an ultra-compact design, and ongoing advancements—ranging from traditional distribution protection to intelligent energy management—the series delivers core solutions that combine high safety with exceptional efficiency across a wide spectrum of sectors, including industrial manufacturing, critical infrastructure, and renewable energy.
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