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SWM1
SINGI
APPLICATION
Molded case circuit breakers (MCCBs) provide overcurrent protection for low-voltage power distribution systems. They protect electrical circuits and equipment from damage by disconnecting the circuit when excess current is detected.The SWM1 MCCB has a rated insulation voltage of 800V. It is designed for AC power systems operating at 50 or 60 Hz with voltages up to 690V and currents up to 1250A, for applications requiring infrequent switching. In addition to basic overcurrent protection, it incorporates overload, short circuit, and undervoltage release functions to address a range of fault conditions. Upon detection of an overload, short circuit, or drop in voltage below a set threshold, the MCCB will trip to isolate the faulty portion of the circuit and cut off power to downstream equipment.MCCBs are categorized by their rated ultimate short-circuit breaking capacity into Type B, Type C, Type L, Type M, and Type H, in order of increasing capacity. The SWM1 MCCB falls under the Type M classification, indicating a high breaking capacity. Key traits of the SWM1 MCCB also include a compact and vibration-resistant housing, short arcing time, and high interrupting rating. These specifications make it well-suited for industrial and marine installations where space is limited and high power equipment is prevalent. The SWM1 MCCB has a modular design and can be installed either vertically or horizontally. It has been tested and certified to major international standards for MCCBs including IEC 60947-2 and the GB 14048.2 national standard.MCCBs are critical components for safe and reliable power distribution. They help minimize safety hazards, equipment damage, and power outages that could result from overcurrent events. The SWM1 MCCB’s overload protection reduces the risk of overheating and fire due to extended periods of current flow in excess of a circuit's ampacity. Its short circuit protection acts swiftly once a short is detected to isolate the fault before the sudden influx of current can severely damage conductors, busbars, and other components. Undervoltage protection prevents issues like overheating or improper tripping that may arise when voltage drops below the minimum level required for proper operation.
TECHNICAL PARAMETERS
THERMAL RELEASE WITH INVERSE TIME LAG
