x 1/2 x 1 x 2 x 5 RCD type
300mS 300mS 150mS 40mS
General
BS 7671 2000mS 300mS 150mS 40mS
IEC 60364-4-41 999mS 1000mS 150mS 40mS
NEK 400mS 400mS 150mS 40mS
500mS 500mS 200mS 150mS
Selective
BS 7671 2000mS 500mS 200mS 150mS
IEC 60364-4-41 1000mS 1000mS 150mS 40mS
NEK 500mS 500mS 200mS 150mS
Table 6.6.1 Maximum test time related.
x 1/2 x 1 x 2 x 5
AC
B AC
B AC
B AC
B
10 O O O O O O O O O O O O
30 O O O O O O O O O O O O
100 O O O O O O O O O O O O
300 O O O O O O O O O O X X
500 O O O O O O O O X X
X
X
1000 O O O O O
X
X
X
X
X
X
X
Table 6.6.2 Status by RCD type.
Selective type RCD has a 30 second delay during measurement.
Be aware: Leakage currents in the circuit following the residual
current protection device may influence the measurements
Be aware: The potential fields of other earthing installations may
influence the measurement
Be aware: Equipment, which is connected downstream of a
residual current protective device (RCD) may cause a
considerable extension of the operating time. Examples of such
equipment might be connected capacitors or running motors.