A070577 V2 EN
Figure 2: Detaching a plug-in unit from the case
The IED features an automatic short-circuit mechanism in the CT
connector. Therefore, detaching the plug-in unit will not open the
secondary
circuit of the CT which could cause dangerously high voltages.
The signal connectors are left open when the plug-in unit is detached.
4.2.2 Installing the plug-in unit
Before fitting the plug-in unit into the case, check that the unit and the
case have the same serial number.
The IED is built (or constructed) in a way that a plug-in unit with voltage or current
measuring inputs can only be plugged into a corresponding case. This prevents fitting a
non-suitable plug-in unit into a wrong case.
Section 4 1MAC051065-MB C
Mounting
14 615 series ANSI
Installation Manual
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