50A High Voltage DC Contactor, 12V/24V coil

Features

• DC 12-900V rated load voltage of contact circuit.
• SPST-NO of contact form, 12 volt, 24 volt coil for selecting.
• Main contact voltage drop at 50A, not above 100mV.
• The connection of contact and coil need to be nonpolarity.
• Efficient coil, retentive power is only 2-2.3W, counter electromotive force is 0V.
• The joint way of the coil is very convenient.
• The coil has no counter force of electromagnetism.
• Compare to the similar products, this product is smallest and lightest.

Specifications

Installation Diagram (Unit: mm)

High Voltage DC Contactor Coil Schematic
Tips: Fusion welding of the contactor due to electric shock, how to solve?

Possible causes of the fault:

• short circuit of contactor on the load side.
• Overload use of contactor contact.
• There’s a foreign body or a metal particle on the surface of the contact.
• Pressure of the contact spring is too small.
• Poor contact of contactor's lines, which makes the contactor repeatedly pull in and release at a moment.

Maintenance method:

1. Power off at first, separate the welding contacts with a screwdriver, correct the contact surface and eliminate the short-circuit fault.
2. Replace with a large capacity and high quality contactor.
3. Smooth the contact surface with a steel file and remove foreign bodies.
4. Readjust the spring pressure.
5. Check the bad contacts of the coil control loop of the contactor, reconnect the loop or replace electrical components, ensure a good on-off situation.