Operation Manual

MI 3309 BT DeltaGT Single test
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5.2.10 (P)RCD test
The purpose of this test is to ensure the proper operation of residual current devices
(RCD) built into appliances / installations and portable residual current devices (PRCD).
Trip-out time measurement verifies the sensitivity of a (P)RCD at selected residual
currents.
The RCD test is performed via the instrument mains supply input.
Figure 5.34: (P)RCD single and auto test menus
Test parameters for (P)RCD test
Test Test function [RCD, PRCD]
I
N
Rated residual current [10 mA, 15 mA, 30 mA]
Mul
Test current multiplier I

N
[x ½, x 1, x 5]
Mod
(P)RCD test mode [(0, 180, (0,180), AUTO]
Figure 5.35: (P)RCD test current starting polarities 0, 180
Test circuits for testing RCD and PRCD
a) Testing of standard RCD