An external slide switch selects nominal input voltages of 115 or 220 V ac. Both input power lines include fuses. The power supply is automatically turned off by an internal switch if the temperature of the heat sinks exceeds 110 C. Recovery is automatic when the temperature decreases to a safe value. Provision is made for activating a temperature warning light on the NIM bin control panel to advise that the temperature limit is being approached. This feature provides short-circuit and overload protection.
Recovery is automatic after removal of the overload condition.
The 4002D Power Supply is designed to provide high currents to NIM modules that contain heavy loads. The NIM bin used with this power supply must be capable of handling the large currents demanded by those loads. NIM Bin will function acceptably with the 4002D Power Supply, but the Model 4001C NIM Bin is recommended as the more desirable choice. NIM Bin employs copper bus bars for power distribution. This typically results in more than a factor of 10 lower voltage drop at maximum current.