MCCB Ax1 & Ax1e circuit breaker is the core element of the LV switchgear power distribution system and is used to protect the low-voltage distribution system against a short circuit.
MCCB Ax1 & Ax1e circuit breaker
Moulded Case Circuit Breaker Fixed Thermal & Fixed Magnetic setting. The MCCB Ax1 & Ax1e Circuit Breaker are a premium offering from Axiom Controls. It is specifically developed to safeguard power lines and equipment from potential damage from short circuit and overloading. The MCCB Ax1 & Ax1e series is enriched with remarkable features, including fixed thermal and magnetic settings that serve as overload, short-circuit, and under-voltage protection in the distribution system.
The operation principle of MCCB breaker is that it protects a circuit from the current. It uses thermal and magnetic mechanisms to break the power currents. The thermal mechanism is used for overload protection while the magnetic mechanism is used for short-circuit protection. to provide reliable and robust protection for your power equipment needs.
This offers reliable protection against instances of overloading, short-circuiting, and under-voltage. Overall, the Axiom Ax1 & Ax1e MCCB series offers excellent protection and versatility while serving as a premium solution for guaranteeing the continuous operation of electrical systems.
Application of MCCB
An electrical protection tool frequently used in industrial and commercial settings is the MCCB Circuit Breaker or Moulded Case Circuit Breaker because it offers security against electrical failures such as overloads, and short circuits and handles very high currents, they are used for heavy-duty applications such as in industries.
Hence, MCCB switches are mainly installed in commercial and residential buildings and heavy industrial areas due to their adjustable trip settings and higher current handling and adjustable trip setting capabilities.
Three different models of the MCCBs in this series—the Ax1 & Ax1e —each with a different frame current rating are available. These devices feature an AC800V-rated insulation voltage and can be utilized in 3- or 4-pole arrangements. They have rated working voltages of either AC400V or AC690V and can function at voltages ranging from 40V to 400V.
| MODEL | AX1e-100 | AX1-125 | AX1-250 | AX1-400 | AX1-630 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frame current Inm(A) | 100 | 125 | 250 | 400 | 630 | ||||||||||
| Rated voltage In(A) | 32, 40, 63, 80, 100 | 40, 63, 80, 200, 125 | 160, 180, 200, 225, 250 | 315, 350, 400 | 400, 500, 630 | ||||||||||
| Number of poles | 3 | 4 | 3 | 4 | 3 | 4 | 3 | 4 | 3 | 4 | |||||
| Rated insulation voltage Ui(V) | AC800 | ||||||||||||||
| Rated working voltage Ue(V) | AC415, AC690 | ||||||||||||||
| Rated impulse withstand voltage Uimp(V) | 8000 | ||||||||||||||
| Arcing distance (mm) | 50 | ||||||||||||||
| Breaking capacity grade | L | M | H | L | M | H | L | M | H | L | M | H | L | M | H |
| Limit short-circuit AC415V Breaking capacity Icu(kA) | 35 | 50 | 85 | 35 | 50 | 85 | 35 | 50 | 85 | 50 | 65 | 100 | 50 | 65 | 100 |
| Running short-circuit AC415V Breaking capacity Ics(KA) | 22 | 35 | 50 | 22 | 35 | 50 | 22 | 35 | 50 | 35 | 42 | 65 | 35 | 42 | 65 |
| Operation characteristics(times) ON | 6000 | 6000 | 3000 | 2000 | 1500 | ||||||||||
| OFF | 8500 | 8500 | 7000 | 4000 | 4000 | ||||||||||
| Total | 10000 | 10000 | 6000 | 5500 | 5500 | ||||||||||
