ABB Relion 670 series, Technical Reference Manual

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19.4 Mounting alternatives
19.4.1 Flush mounting
19.4.1.1 Overview
The flush mounting kit are utilized for case sizes:
• 1/2 x 19”
• 3/4 x 19”
• 1/1 x 19”
• 1/4 x 19” (RHGS6 6U)
Only a single case can be mounted in each cut-out on the cubicle panel, for class IP54
protection.
Flush mounting cannot be used for side-by-side mounted IEDs when
IP54 class must be fulfilled. Only IP20 class can be obtained when
mounting two cases side-by-side in one (1) cut-out.
To obtain IP54 class protection, an additional factory mounted sealing
must be ordered when ordering the IED.
Section 19
1MRK505222-UUS C
IED hardware
1144
Technical reference manual