Advantages of ATO DC Contactor Dustproof IP50 protection level IP50, effectively prevent foreign objects and dust, the amount of dust intrusion will not affect the safe operation of the contactor. 300,000 times of mechanical life: ATO Universal Main Contactor Solenoid, with 300,000 times of mechanical life: In the case of no power, do a continuity test to check whether the product's contacts, shrapnel, etc. can work normally after a certain number of times. After testing, the mechanical life of ATO DC contactor is 300,000 times. High-content silver contacts: Each ATO DC Contactor is matched with high-content silver contacts, which has better conductivity, long life and high temperature resistance. Application: ATO Solenoid Contactor has one normal open contact, has been designed for direct current loads, particularly for electric vehicle, telecommunication equiment, car batteries, trains, ships, electronic control system.etc Copper coil: Copper coil: Using QA-1/155 grade enameled wire, the coil has a wide range of pull-in, long-term use, low power consumption and long life. QA-1/155 grade enameled wire long-term use low power consumption long life 50A DC Contactor 100A DC Contactor 200A DC Contactor 600A DC Contactor Buying Options Add to Cart Add to Cart Add to Cart Price — no data $128.90$128.90 $146.99$146.99 $204.99$204.99 Contact Circuit Rated Load Current 50A 100A 200A 600A Coil Power ≤5.5 W ≤6.5 W ≤9.5 W ≤12 W Body Size 2.2 inch*1.5 inch *2.3 inch 2.8 inch*1.7 inch*2.7 inch 3.3 inch*2.3 inch*3.3 inch 5.1 inch*3.2 inch*4.3 inch Weight 0.4 lb 0.6 lb 1 lb 3.3 lbs Contact Form: 1 NO ✓ ✓ ✓ ✓ With Auxiliary Contact: 1NO+NC no data no data no data ✓ Common parameters Coil Rated Voltage 12V Rated Load Voltage 12~72V DC Overload Current ≤7 le Main contact voltage drop Main contact voltage drop at 100A: ≤100 mV Allowed Range of Coil Voltage ±20% Pull-In Time Pull-In Time (N/O Contacts to Open): ≤30 ms Drop-Out Time Drop-Out Time (N/O Contact to Close): ≤20 ms Insulation Resistance ≥50 MΩ Work Duty Continuous Dielectric Withstanding Dielectric Withstanding Voltage: 50Hz/60Hz 1500VAC/Min Electric Life Continuous 30000 times Mechanical Life 300 thousand times Operating Temperature -25℃~55℃ Operating Humidity 5~95% RH International Protection IP 50 Tips: DC contactor's coil adopts a series duplex winding In order to reduce the power consumption of the coils and extend the service life, large capacity DC contactor coil usually adopts a series duplex winding. A break contact of the contactor is parallel to the holding coil. When the coil powers on, the holding coil is shorted by the break contact, which makes the starting coil to obtain a large current and suction force. After the contactor acts, the starting coil and holding coil keep powering on in series connection. Due to the constant voltage, the current is small, but the armature can still be kept in, thus saving the power.