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AMM1 Series Moulded Case Circuit Breaker Fixed Thermal & Fixed Magnetic setting

The AMM1 Series Moulded Case Circuit Breaker (MCCB), a premium offering from Axiom, is specifically designed to safeguard power lines and equipment from potential damage. It is fortified with exceptional features, including fixed thermal and magnetic settings that serve as overload, short-circuit, and under-voltage protection. Additionally, this high-end product can be mounted vertically or horizontally, providing installation flexibility. Trust in the AMM1 Series to provide reliable and robust protection for your power equipment needs.

Power equipment and gearbox lines are protected from harm by comprehensive protective measures in the Axiom AMM1 family of MCCBs. This offers reliable protection against instances of overloading, short-circuiting, and under-voltage. These circuit breakers can be mounted vertically and horizontally, providing a variety of installation possibilities. Overall, the Axiom AMM1 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 or Moulded Case Circuit Breaker. It offers security against electrical failures such as overloads, short circuits, etc.

Three different models of the MCCBs in the AMM1 series—the AMM1-125, AMM1-250, and AMM1-400—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.

The rated impulse withstand voltage and arcing distance of the Moulded Case Circuit Breaker AMM1 series are 8000V and 50mm, respectively. The L, M, and H grades of MCCBs are available, and the breaking capacities vary based on the type and quality. In contrast to the operating short-circuit breaking capacity, which ranges from 22 kA to 65 kA, the limit short-circuit breaking capacity is between 35 and 100 kA.

With ON and OFF operation timings stated in terms of the number of cycles, the AMM1 series of MCCBs’ operating characteristics are also presented. The AMM1-400 model’s ON operating time is 2000 cycles, the AMM1-125 model’s OFF operation time is 4000 cycles, and the AMM1-400 model’s ON operation time is 2000 cycles, while the AMM1-125 model’s OFF operation time is 6000 cycles. 5500 cycles for the AMM1-400 model to 10000 cycles for the AMM1-125 model make up the entire amount of cycles for the AMM1 series.

MODEL AMM1-125 AMM1-250 AMM1-400
Frame current Inm(A) 125 250 400
Rated voltage In(A) 40 63 80 100, 125 160 180 200 225 250 315 350 400
Number of poles 3 4 3 4 3 4
Rated insulation voltage Ui(V) AC800
Rated working voltage Ue(V) AC400 AC690
Rated impulse withstand voltage Uimp(V) 8000
Arcing distance (mm) 50
Arcing distance (mm) L M H L M H L M H
Limit short-circuit AC415V Breaking capacity Icu(kA) 35 50 85 35 50 85 50 65 100
Running short-circuit AC415V Breaking capacity Ics(KA) 22 35 50 22 35 50 35 42 65
Operation characteristics(times) ON 6000 3000 2000
OFF 8500 7000 4000
Total 10000 6000 5500

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