Chauvin Arnoux C.A 740N Voltage Tester P01191741Z Fiche De Données

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Temperature

23±5°C

Relative humidity

30 to 75 % HR

Supply voltage

3±0,1V

Frequency of the measured signal

DC or 45 to 65 Hz

Type of signal

sinusoidal

External electric field

<1V/m

DC external magnetic field

<40A/m

Nominal voltages: 12, 24, 50, 127, 230, 400, 690 V

ac

/V

dc

 

and 750 V

dc

.

Frequency of operation: DC and 16.67 at 800Hz.
Maximum input current: 3.5 mA

rms

.

Input impedance >300k

W.

Response time <500ms.

The indicator corresponding to voltage V lights before the 
voltage reaches 85% V.

If no indicator lights, the voltage present is < 12V.

The C.A 740N must be used only on networks at standard-
ized voltages. 

Operating cycle: 30s (maximum duration for which the device 
can remain connected to a live element) - 240s (minimum 
resting time during which the detector must not be connected 
to a live element).

Continuity detection is disabled if a voltage > 1V is present.
Triggering threshold between 100

W and 150W.

Test current 

≤1mA

Open-circuit voltage 

≤3.3V

15Hz<frequency<65Hz
50 V

ac

<voltage<690 V

ac

 and 45Hz<frequency

 ≤65Hz

150 V

ac

<voltage<690 V

ac

 and frequency<45Hz