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EXP-EL-CSS-250A-R1-NO

Larson Electronics, LLC

 

 Phone: (800) 369-6671 

Fax: (903) 498-3364 

www.larsonelectronics.com 

2

 of 

3

WIRING 

We strongly encourage a licensed electrician install this product

, in all locations especially in outdoor areas 

where weatherproofing may be required. Universal voltage driver permits operation at 

240V AC/DC.

Warning: 

Check product label for correct input voltage!

 

INSTALLATION

1. Run the wire to be monitored through aperture.

2. Mount the sensor.

3. Connect output wiring.

a. Use 22AWG (0.33mm²) up to 14AWG (2.5mm²) copper wires, 75/90°C insulation.

b. Ensure load matches the output shown on the sensor label.

For All Versions

Run  wire  to  be  monitored  through  the  aperture (opening) in the sensor. 

The AC Current Switch

  can  be  located  in  the  same environment as motors, 

contactors, heaters, pull-boxes, and other electrical enclosures. Mounting can be 

done in any position or hung directly on wires with a wire tie. Ensure at least one 

inch clearance exists between sensor and other magnetic devices.

Split-Core Versions (-S Suffix)

Press  the  tab  in  the  direction  as  shown  to  open  the sensor. After placing wire in 

aperture, press the hinged portion firmly downward until a click is heard and the tab 

pops out fully.

Important!

Keep Contact 

Area CLEAN!

To Open 

Press Tab 

Toward Hinge.

KEEP SPLIT-CORE SENSORS CLEAN.

Silicone grease is factory applied on the mating surfaces to   prevent  rust  and  improve  performance.  Be  careful not to allow grit or dirt 

onto the grease in the contact area. Operation can be impaired if the mating surfaces do  not  have  good  contact.  Check  visually 

before closing.

Output Wiring

Connect control or monitoring wires to the sensor. Use 22AWG  (0.33mm²)  up  to 

14AWG  (2.5mm²)  copper wire and tighten terminals to 5 in lbs (0.6 Nm) torque. Be 

sure  the  output  load  does  not  exceed  the  switch rating. 

CAUTION: 

INCANDESCENT

 

LAMPS

 

CAN

 

HAVE

 

“COLD

 

FILAMENT

 

INRUSH”  CURRENT

 

OF

 

UP

 

TO

 

10

 

TIMES

 

THEIR

 

RATED

 

AMPERAGE. USE

 

CAUTION

 

WHEN

SWITCHING

 

LAMPS

 

ON

 

AND

 

OFF.

The output connection is simple, and is not polarity sensitive. Bring the control 

circuit voltage to one terminal, and connect the controlled load to the other. When 

closed, the contact will pass the control circuit voltage from the source to the load.

AC Current Switch

Setpoint Adjustment

The AC Current Switch

 setpoint is fixed and non-adjustable:

1. Output contacts are solid-state. Check output status by applying voltage to the contacts and reading the voltage drop across the contacts. 

An ohmmeter set on “Continuity” will give misleading results.

Monitored Amps

Output

Fixed Split

N.O.

Below 0.75 A

1.25 A

OPEN

Above 0.75 A

1.25 A

CLOSED

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