When using in a DC voltage circuit, care must be taken regarding the wear of the contacts.
When using a thermostat in a DC voltage circuit, one issue to be aware of is the wear on the contacts. Essentially, you should check the contact capacity according to the voltage/DIFF. rank. In other words, AC125V and DC12V can each handle, for example, 5A, while AC250V and DC24V can each handle, for example, 3A, up to the same current. The mechanism by which contacts are damaged by arcing consists of four elements: (a) the magnitude of the voltage, (b) the magnitude of the current, (c) the rate of contact separation and engagement, and (d) the material of the contacts and the condition of the contact surface. For more details, please download the catalog.
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【Features】 ○ The contact gap primarily counters the magnitude of the voltage, and we guarantee AC250V or DC48V. ○ If a guarantee up to DC75V is requested, we can only accommodate M2 and M3 Diff.C and D ranks with a larger contact gap (up to 200mA). ○ The magnitude of the current is primarily not about whether the arc will extinguish or not. ○ It relates to how much damage the contacts will sustain from the arc. ○ In high-current arcs, the rapid rise in temperature of the contacts can cause them to melt quickly and lead to adverse phenomena such as accelerated surface oxidation of the contacts. ● For more details, please contact us or download the catalog.
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