AS3 Series Current Sensing Switches provide the same dependable indication of status offered by the AS1, but with the added benefit of increased setpoint accuracy. A choice of three, jumper-selectable input ranges allows the AS3 to be tailored to an application, providing more precise control through improved setpoint resolution. Self-powering, isolated solid-state outputs, 1-6 A, 6-40 A and 40-200 A input ranges, and a choice of split- or solid-core case are standard.

Note: -15 Model must be mounted on a metal surface 144 sq. in. minimum in size to achieve a 15 amp rating.

Pump Jam and Suction Loss Protection

Current Sensing Switch Applications

Electronic Proof of Flow

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

Conveyors

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

Lighting Circuits

• Easier to install and more accurate than photocells.

Electrical Heaters

• Faster response than temperature sensors.

Current Sensing Switch Features

Choice of N.O. or N.C. Solid-state Outputs

• 1 A @ 240 VAC, 0.15 A @ 30 VDC.
• 15 A @ 120 VAC (-15 model).
• 3 A @ 120 VAC (-03 model).

Self-powered

• Cuts installation and operating costs.

Easily Adjustable Setpoint

• Speeds startup.

Solid- or Split-core Case

• Choose the appropriate version for each installation.

LED Indication

• Provides quick visual indication of contact status.

Built-in Mounting Feet

• Provides the secure installation inspectors require.

UL/cUL and CE Approved

• Accepted worldwide.

AS1, AS3, ASX, ASXP Series Sample Output

Current Sensing Switch Connection

Note: Terminal are #6 screws. DC contacts are polarity sensitive.

Current Sensing Switch Ordering Information

Sample Model Number: AS3-NOAC-FF-NL
Adjustable AC current sensing switch, normally open AC contacts, solid- core case, without indicating LED. (DIN rail adapters are included)