5DP General Purpose DC Contactor

5DP Series General Purpose DC Contactors

5DP General Purpose DC Contactors are designed for DC adjustable speed drive circuits using silicon controlled rectifier switching and other controls where a combination of normally open and normally closed power contacts are required. In all applications, reduced panel space for dc contactor mounting is made possible through a compact design and the built-in N.C. dynamic brake power contact feature.

In silicon controlled rectifier switching circuits, the SCR is normally phased back prior to contactor opening. Therefore, the N.O. contacts are not required to interrupt any appreciable current. Under abnormal conditions such as failure of the SCR or the control circuit, the DC contactor may be required to interrupt up to 200% current. The N.O. contacts are equipped with permanent magnet blowouts to meet this requirement.

The dynamic brake N.C. contact is required to insert the dynamic brake resistor and therefore must make up to 200% of rated current each time the dc contactor is de-energized. Jogging is accomplished at low voltage and current. Therefore, the dynamic brake contact is rated at 1/3 of rated voltage and dynamic brake current. The permanent magnet blowouts provide this interrupting ability.


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Contactor SeriesOperating Current Operating VoltageDC Contactor Category
7000 Series 10/40A500VDCGeneral Purpose
7001 Series40A500VDCGeneral Purpose
5DP1 Series30A500VDCGeneral Purpose
5DP2 Series56A500VDCGeneral Purpose
5DP3A Series110A500VDCGeneral Purpose
5DP7 Series75A500VDCGeneral Purpose
5DP3 Series110A500VDCGeneral Purpose
5DP4 Series180A500VDCGeneral Purpose
5DP9 Series260A500VDCGeneral Purpose
5DP5 Series360A500VDCGeneral Purpose
5DP8 Series535A500VDCGeneral Purpose