NK ASD Series AC Current Sensing Switches

• ASD series
• AC current sensing switch
• Range: 1-50 A switch adjustment
• Output contact: Normally Open, closes on current rise, AC control only
• Power supply = 24 VAC or DC
• Case style = solid-core

ASD series sensors provide a limit alarm contact with the easiest adjustment method ever designed. The single turn potentiometer allows the trip point to be set before the sensor is installed, or before the monitored circuit is energized. The LED display provides a quick visual indication of where the contact changes.

Current Sensing Switch Applications

• Current operated switches eliminate the need for multiple pipe or duct penetrations and are more reliable than electromechanical pressure or flow switches.

• Detects jams and overloads.
• Interlocks multiple conveyor sections.

• Output contact is adjusted so it is closed during normal operation, opening if the pump runs dry or there is a loss of head pressure for any reason.

• Monitor for overcurrent conditions caused by open duct access doors or undercurrent from a broken drive belt or coupling.

Current Sensing Switch Features

• N.O. or N.C. solid-state switch for control circuits up to 240 VAC.
• Compatible with most automation systems.

• Allows for higher accuracy.

• Speeds startup.
• Improves the safety by allowing the trip point adjustment with no power through the sensing window.

• Provides quick visual indication of where the contact changes. When current exceeds the setpoint, the display flashes on and off.
• Easiest and most accurate setpoint adjustment available.

• Simple, two-screw panel mounting or attach with DIN rail adapters (included).*

• Accepted worldwide.

Current Sensing Switch Ordering Information

Sample Model Number: ASD1-NOAC-24U-FL

Adjustable AC current operated switch, normally open, solid-core case. (DIN rail adapters are included)