NK ASM-NCU-OL-SP - AC Current Sensor, ASM Series

• ASM series
• Self-calibrating AC current sensor
• Output rating = Normally Closed
• Operation = Overload
• Case style = Split-core

The patented design ASM Series Self-calibrating Smart-Switch is more accurate and easier to use than previous models. This Smart-Switch uses the actual load current to set the trip point. It takes just a couple of seconds of steady running conditions before the sensor locks onto the normal current level. The ASM Series is designed for overload, underload or operating window applications. Upon sensing an average operating current, the ASM self-learns and establishes a limit-alarm trip point based on 85-125% of normal current (overload/underload model only). Available in a solid- or split-core case.

ASM Series Over and Underload Contact Output (Heavy = Tripped)

Current Sensing Switch Applications

Conveyors (-OL Option)

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

Electronic Proof of Flow (-UL Option)

• More reliable than electromechanical pressure or flow switches. No need for pipe or duct penetrations.

Pump Protection (-OU Option)

• Provides overload (jams) and underload (suction loss) indication.
• Interlocks multiple conveyor sections.

Current Sensing Switch Features

Self-powered and Self-calibrating

• Speeds startup, cuts installation costs.

Status Monitoring, Overload, and Operating Window Options

• Choose the operating style that matches your application.

Universal Output

• AC or DC compatibility with any automation system.

UL/cUL and CE Approved

• Accepted worldwide.

Current Sensing Switch Ordering Information

Sample Model Number: ASM-NOU-OL-SP

AC current sensing switch, normally open, self-calibrating overload operation in a split-core case. (DIN rail adapters are included)