AF350A - Essential Electric 350A 1800VDC High Voltage DC Contactor Single Pole SPST-NO

AF350A

AF350A is a high voltage DC contactor rated for 350 amperes and 1800 volts DC, designed for reliable power switching applications.AF350A features a single-pole, single-throw normally open (SPST-NO) contact arrangement with a short-term current capacity of 5000A for 30 seconds. It offers fast operate and release times of ≤40ms and ≤30ms respectively at 20°C, and withstands dielectric voltages up to 6000VDC between open contacts. The contactor is suitable for harsh environments with an operating temperature range from -55°C to +85°C and high insulation resistance. Mounting is designed for secure installation with direct terminal contact and controlled nut torque.

Key Specifications
• Rated Current: 350 Amperes
• Rated Voltage: 1800 VDC
• Contact Arrangement: 1 Form X (SPST-NO)
• Short Term Current: 5000A for 30 seconds
• Operate Time: ≤40 milliseconds at 20°C
• Release Time: ≤30 milliseconds at 20°C
• Dielectric Withstanding Voltage: 6000 VDC between open contacts
• Operating Temperature: -55°C to +85°C
• Insulation Resistance: ≥1000 MΩ at 500 VDC
• Auxiliary Contact: 1 Form A
• Weight: 1.43 lbs (0.65 kg)

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Specifications

• Part Number: AF350A

Product Data

• Weight : 90