CHM6-250N MCCB Protection Settings
The CHM6-250N molded case circuit breaker uses a thermal-magnetic protection arrangement with adjustable overload and short-circuit thresholds. The listed Ir range is 200–250A for overload protection, while Im can be adjusted from 1250A to 2500A for short-circuit protection.
The specification table gives an insulation voltage (Ui) of 800V and an impulse withstand voltage (Uimp) of 8kV. Breaking capacity is listed for several voltage conditions, including 90kA at 240V and 50kA at 415V. The product standard is IEC/EN 60947-2.
A transparent window is also listed for parameter viewing, while the terminals are marked 1/3/5 for input and 2/4/6 for output.
