The image displays a Jayelec QYM1-250DC molded case circuit breaker (MCCB). This is a critical electrical protection device designed to safeguard circuits and power equipment from overcurrent, short circuits, and thermal overload, commonly used in solar systems.
Key specifications visible on the label and confirmed by product information include:
Model: QYM1-250DC
Rated Current (In): 250A
Rated Voltage (Ue): DC1000V
Insulation Voltage (Ui): 1000V
Impulse Withstand Voltage (Uimp): 8kV
Rated Short-Circuit Breaking Capacity (Ics=Icu): 20kA
Category: A
Standard: IEC 60947-2
Characteristic Curve: li=10ln
Operating Temperature: +40°C