Comparison : |
Item # M4S400T2, Ex9M4S Series MCCB; Thermal-Magnetic Trip Unit Item # M4S500T2, Ex9M4S Series MCCB; Thermal-Magnetic Trip Unit Item # M4S600T2, Ex9M4S Series MCCB; Thermal-Magnetic Trip Unit Item # M4S400T3, Ex9M4S Series MCCB; Thermal-Magnetic Trip Unit Item # M4S500T3, Ex9M4S Series MCCB; Thermal-Magnetic Trip Unit
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