LEGRAND Raritan PX3-3000 Series, Руководство пользователя

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Appendix G: PX3 Models with Residual Current Monitoring
801
IEC 62020 specification PX3 with RCM characteristics
Ability to directly
discriminate Directionally non-discriminating.
Rated residual operating
current 0.5A (highest value).
Residual currents with
direct current components Model dependent.

Models ending in M5 are Type A.

Models ending in M11 or M18 are Type B.
RCM Self-Test
PX3 with RCM have a built-in self-test feature that performs these
functions:

When residual current is less than 3mA, 15mA is momentarily added
to determine whether the low reading is due to a faulty sensor. The
residual current added is done in a safe manner which does not run
current into ground or pose operator risk.

The RCM state sensor changes to SELF-TEST and then back to its
original state if self-test passes, or to the FAILURE state if self-test
fails. These state changes are useful to verify your monitoring
systems (SNMP, syslog, or email) are correctly set up to receive PX3
event notifications.

For Type B "M18" models, the self-test feature will perform tests on
all poles of the selected inlet simultaneously.
Note: If self-test fails, the FAILURE state persists until another self-test
runs and passes.