Siemens 3VA1 100 A Manual page 338

Molded case circuit breakers
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4.8 Residual current devices
Resetting
The residual current device and the "tripped" display are reset by means of the handle of the
molded case circuit breaker, or the handle of the manual operator or by means of the motor
operator.
Parameterization of the residual current device
Button for setting the response current I
The response current can be set in 10 steps, ranging from 0.03 A to maximum 30 A. A
residual current of type A is detected within the 0.03 A to 10 A range. If the response current
is set to 30 A, the device detects only residual currents of type AC (i.e. purely sinusoidal
currents).
Each response current has a dedicated setting range. The corresponding response current
is set as soon as the button is latched in the setting range.
If the white setting arrow is resting between two setting ranges, the residual current device is
automatically set to 0.03 A for safety reasons.
If the response current is set to 0.03 A, the delay time setting is deactivated and the breaker
is tripped instantaneously in order to afford personal protection in the case of direct contact.
The factory setting for the response current is 0.03 A.
338
Setting button for response current I
Setting button for delay time Δt
Δn
Δn
Manual, 04/2015, A5E03603177010-02
3VA molded case circuit breakers

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