Description
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
| Basics | Model | ATO-ADH50 | |
| Dimension | 55 x 42 x 62 mm | ||
| Weight | 230 g | ||
| Main Contact Parameters | Contact Form | 1 NO | |
| Leading-Out | M5 internal thread/18 mm | ||
| Rated Load Current | 50 A | ||
| Rated Load Voltage | 12 – 900V DC | ||
| Maximum Switching Current | 500A 320V DC (≥1 times) | ||
| Maximum Switching Power | 160 kW | ||
| Rated Electric Life | 10,000 times | ||
| Coil Parameters | Standard Type Voltage | 12V DC | 24V DC |
| Work Voltage | 9~16V | 18~32 V | |
| Max Voltage | 16 V | 32 V | |
| Coil Resistance | 26 Ω | 96 Ω | |
| Average Holding Current | 0.46 A | 0.25 A | |
| Steady State Power | 5.5 W | 6 W | |
| Actuation Time | ≤25 ms | ||
| Release Time | ≤10 ms | ||
| Bounce Time | ≤5 ms | ||
| Mechanical Specification | Stability | 196 m/s2 (20G) | |
| Strength | 490 m/s2 (50G) | ||
| Vibration | 80 ~2000Hz 98m/s2 (20G) | ||
| IP Grade | IP67 | ||
| Environment | Operating Temperature | -40℃~85℃ | |
| Operating Humidity | 5~95% RH |
Installation Diagram (Unit: mm)
High Voltage DC Contactor Coil Schematic
Details
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:
- Power off at first, separate the welding contacts with a screwdriver, correct the contact surface and eliminate the short-circuit fault.
- Replace with a large capacity and high quality contactor.
- Smooth the contact surface with a steel file and remove foreign bodies.
- Readjust the spring pressure.
- 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.
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