Also incorporated in this connector block are a fuse holder and the input power cord connector. The 4002P uses an international standard IEC power connector to permit the use of power cords and plugs that meet local electrical standards. There are three levels of protection against overload. A fuse on the ac power connector limits the input current. This feature provides short-circuit and overload protection.
Recovery is automatic after removal of the overload condition.
Test points are conveniently located on the front panel to allow monitoring the status of the dc outputs. When the temperature of the heat sink exceeds 95 C, the power supply is automatically turned off. Recovery is automatic when the load is reduced and the temperature decreases to a safe value. Measurements are made within a 1-minute period. Range typically 1 V about the nominal supply voltage.