Description
The provided 50A DC reversing contactor with 2NO and 2NC contact type, coil voltage available in 12 volt, 24 volt, 48 volt. It is used to change the direction of rotation in direct current motors, start them gently and to monitor their load. Widely used in auto electric winch, telecommunication equiment, engineering machinery and other electric control system.
Specifications
| Basics | Model | ATO-ADC50 |
| Body Size | 81*52*76 mm | |
| Weight | 410 g | |
| Technical Parameters | Coil Rated Voltage | 12V/24V/48V |
| Contact Circuit Rated Load Current | 50A | |
| Contact Rated Load Voltage | 12V~60V DC | |
| Contact Form | 2NO and 2NC | |
| Starting Current | ≤4 A | |
| Overload Current | ≤8 le | |
| Coil Power | ≤8 W | |
| Main Contact Voltage Drop at 50A Load | ≤80 mV | |
| The Allowed Range of Coil Voltage | ±20% | |
| Pull-In Time (N/O Contacts to Open) | ≤20 ms | |
| Drop-Out Time (N/O Contact to Close) | ≤10 ms | |
| Insulation Resistance | ≥50 MΩ | |
| Dielectric Withstanding Voltage | 50Hz/60Hz 1500VAC/Min | |
| Electric Life | Continuous 30000 times | |
| Mechanical Life | 300 thousand times | |
| Environment | Operating Temperature | -40℃~85℃ |
| Operating Humidity | 5~95% RH |
DC Reversing Contactor Circuit Diagram
Installation Diagram (Unit: mm)
Details
Tips: Short circuit of the contactor, how to solve?
Possible causes of the fault:
- The contactor works in the environment of damp, dust, steam, or corrosive gases.
- The arc chute damages or falls, load short leads to the contact short of the contactor.
- Incorrect operation of the positive and reverse contactor, as well as unreliable interlocking, make two contactors to pull in at a same time when reversing.
Maintenance method:
- Improve the working environment and keep clean.
- Match an arc-extinguishing equipment again.
- Handle the load short failure.
- Recheck the contactor’s interlocking circuit, change the operation mode.
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