CHN-ANR80 single pole DC contactor with normal open contact (SPST-NO), using for battery, rectification power supply, pump motor and other electronic vehicles.

80A DC Contactor Features

• 80 amps rated load current of contact circuit.
• 12V, 24V, 48V DC coil rated voltage for selection.
• The allowed range of coil voltage is ±20%.
• 2A/48VDC and 5A/24VDC auxiliary contact rated load to choose.
• Mechanical life up to 300 thousand times.

80A DC Contactor Specifications

80A DC Contactor Installation Diagram (Unit: mm)

Tips: The contactor coil is overheated or burned down

Possible causes of the fault:

• Supply voltage is too high.
• Contactor is frequently operated.
• High ambient temperature, end face of the contactor's iron core is not smooth.
• There's a mechanical failure on the contactor's movable iron core, which makes the iron core unable to suck, turn-to-turn short circuit.

Maintenance method:

1. Measure whether the working voltage on the contactor conforms to the rated voltage of the contactor coil, if it's too high or too low, adjust it to the normal voltage value.
2. Improve the temperature of working environment, strengthen heat dissipation.
3. Clean and wipe the end face of contactor iron core, replace the iron core when necessary.
4. Check if the mechanical part of the contactor moves flexibly, replace a same type coil after repairing if the coil has been burned out.
5. Eliminate the reasons for causing mechanical damage of the contactor coil, replace the coil.