ABJ2-22W/24W/28W Three-Phase Three-Wire/Four-Wire AC Voltage Protector

Product Description

Features

• Used in three-phase AC variable-frequency voltage environment (such as in a variable-frequency VVVF elevator or in a medium-frequency furnace) in three-phase three-wire/four-wire AC circuits
• Power supply: low voltage 12V or 24V, applicable for both AC and DC
• Taking electricity is convenient
• Installation methods: Push-type spring terminals/Plug-type screw terminals
• Adaptability to abnormal wave form, anti-pulse capability, and anti-carrier capability in a powergrid with a poor power supply
• The low-voltage working power supply uses float ground design, isolated with three-phase AC voltage
• Resistance to high pressure, high frequencies, and pulse
• The protection check points can be placed either at the front/back end of the switch contacts, or the front/back end of AC contactors.If the check points are placed at the front end of the load, the protector offers effective protection to the circuit in front of the load
• Contact output solution convenient for process control: After the low-voltage power supply is power-on, there are two options available for the relay contact output-suction (default) or non-suction (Model T)
• Accuracy of voltage setting:<0.5% (Set value x 0.5%); Temperature drift:<0.05V/C (Benchmark temperature: 25C)

Functions

• Protection fumctions: Overvoltage, undervoltage, phase sequence, dynamic phase loss, static phase loss, voltage unbalance
• Time delay functions: Delay output, delay recovery, power-on delay
• Protection against backlash voltage during undervoltage protection: 4+1VAC
• When the working voltage is DC, the protector has a protection function against reverse connection; When the working voltage is low-voltage AC, the voltage is non-polarized

Dimensions

61 (L)x 20.5 (W)x 73 (H)mm