CS Current Sensor, Airotronics

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CS Current Sensor


CS Current Sensor
CS Current Sensor

The CS is an over or undercurrent sensing control. The toroidal sensor means no break in the power wiring and the combination of the overcurrent LED, current, and percentage trip adjustment provides easy and accurate setting. It can handle loads up to 20 amps with time delays up to 100 secs.

Timing Mode

When the sensed current increases above or falls below the set-point, the time delay will start. At the end of the delay, the output will be energized.

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FEATURES
  • Overcurrent and undercurrent sensing
  • Toroidal sensing provides complete isolation between sensed current and control circuit
  • Easy setting of trip point with unique combination of LED indicator, current adjustment and percentage potentiometers.
  • Can switch up to 20 amps (1.5 HP)
  • Totally encapsulated for protection from harsh environments
  • Single screw mounting
  • Transient and polarity protected
  • No heat sinking required
  • CMOS time delay
  • 100% Operational testing before shipping
BASIC WIRING AND DIMENSIONS
SPECIFICATIONS
Input Voltage: +20%/-10%
  • VDC: 12 or 24
  • VAC: 24, 120, 230, 50/60 Hz
Time Delay:
  • Timing Mode: Delay After Sense
  • Type: Digital CMOS
  • Time Range: 0.1 seconds to 10 seconds
    (adjustable) 1 to 100 seconds (fixed)
  • Repeatability: 0.5%
  • Setting Accuracy: 5% or 50 ms.,
    whichever is greater
  • Reset Time: 100 milliseconds
Relay Life Expectancy:
  • Mechanical: Up to 10 million operations
  • Electrical: 100,000 operations at max. load
Protection:
  • Polarity Protection: All DC units have reverse polarity protection
  • Transient Protection: 18 joules
  • Dielectric Strength: 1800V RMS 60 Hz
Temperature Ranges:
  • Storage: -40°C to +85°C
  • Operating: -25°C to +85°C
Sensor:
  • Toroid - Through hole wiring
  • Current Range: 1 to 20 amps
  • Frequency: 50/60 Hz
  • Trip Point Hysteresis: 5% typical
  • Trip Point Drift vs Temperature: 2% typical,
    5% max
  • Fixed Setting Accuracy: 5%
SELECTION PROCEDURE
Mode of Operation Series Relay Common Input Voltage Current Sensing Fault Indic. Hyster-esis Time Delay Time Adj. Method Current Set Point Current Adj. Method Percent Adj. Outputs
Current Sensor CS B = Hot
* = Isolated
  1. 120 VAC
  2. 230 VAC
  3. 24 VAC
  4. 24 VDC
  5. 12 VDC
O = Over
U = Under
F = Yes
* = No
* = 0
H =5%
VARIABLE TIME PERIOD

010 .1 to 10 secs

FIXED TIME PERIOD

Specify time in full seconds from 1 to 100
C = Fixed
A = Integral knob
VARIABLE SET POINT

020
.1 to 20 amps

FIXED SET POINT

Specify amps from 1 to 20 amps
C = Fixed
A = Integral knob
* = 0
P = 20%
H Heavy duty 10 amps (6 amps relay standard)

J 20 amps (1.5 HP)


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