Comparison : Item # M3S225T2, Ex9M3S Series MCCB; Thermal-Magnetic Trip Unit
Item # M3S250T2, Ex9M3S Series MCCB; Thermal-Magnetic Trip Unit
Item # M3S300T2, Ex9M3S Series MCCB; Thermal-Magnetic Trip Unit
Item # M3S350T2, Ex9M3S Series MCCB; Thermal-Magnetic Trip Unit
Item # M3S400T2, Ex9M3S Series MCCB; Thermal-Magnetic Trip Unit